/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 21:26:57,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 21:26:57,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 21:26:57,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 21:26:57,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 21:26:57,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 21:26:57,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 21:26:57,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 21:26:57,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 21:26:57,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 21:26:57,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 21:26:57,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 21:26:57,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 21:26:57,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 21:26:57,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 21:26:57,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 21:26:57,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 21:26:57,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 21:26:57,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 21:26:57,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 21:26:57,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 21:26:57,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 21:26:57,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 21:26:57,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 21:26:57,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 21:26:57,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 21:26:57,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 21:26:57,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 21:26:57,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 21:26:57,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-28 21:26:57,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 21:26:57,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 21:26:57,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 21:26:57,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 21:26:57,399 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 21:26:57,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 21:26:57,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 21:26:57,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 21:26:57,402 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 21:26:57,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 21:26:57,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 21:26:57,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 21:26:57,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 21:26:57,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 21:26:57,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 21:26:57,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 21:26:57,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 21:26:57,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 21:26:57,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 21:26:57,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 21:26:57,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 21:26:57,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 21:26:57,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 21:26:57,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 21:26:57,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 21:26:57,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 21:26:57,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 21:26:57,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 21:26:57,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 21:26:57,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 21:26:57,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 21:26:57,406 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 21:26:57,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 21:26:57,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 21:26:57,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 21:26:57,863 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 21:26:57,863 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 21:26:57,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-28 21:26:57,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/061006c8c/4592e37b845e495aaf4a59a788cc17f2/FLAG54e65e51e [2020-10-28 21:26:58,977 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 21:26:58,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-28 21:26:59,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/061006c8c/4592e37b845e495aaf4a59a788cc17f2/FLAG54e65e51e [2020-10-28 21:26:59,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/061006c8c/4592e37b845e495aaf4a59a788cc17f2 [2020-10-28 21:26:59,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 21:26:59,440 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 21:26:59,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 21:26:59,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 21:26:59,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 21:26:59,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:26:59" (1/1) ... [2020-10-28 21:26:59,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120c74a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:26:59, skipping insertion in model container [2020-10-28 21:26:59,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:26:59" (1/1) ... [2020-10-28 21:26:59,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 21:26:59,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 21:27:00,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 21:27:00,861 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 21:27:01,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 21:27:01,422 INFO L208 MainTranslator]: Completed translation [2020-10-28 21:27:01,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01 WrapperNode [2020-10-28 21:27:01,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 21:27:01,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 21:27:01,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 21:27:01,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 21:27:01,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (1/1) ... [2020-10-28 21:27:01,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (1/1) ... [2020-10-28 21:27:01,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (1/1) ... [2020-10-28 21:27:01,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (1/1) ... [2020-10-28 21:27:01,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (1/1) ... [2020-10-28 21:27:01,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (1/1) ... [2020-10-28 21:27:01,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (1/1) ... [2020-10-28 21:27:01,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 21:27:01,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 21:27:01,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 21:27:01,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 21:27:01,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 21:27:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 21:27:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 21:27:01,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-28 21:27:01,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2020-10-28 21:27:01,876 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 21:27:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 21:27:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 21:27:01,878 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_cur_bytes [2020-10-28 21:27:01,878 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2020-10-28 21:27:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_bytes [2020-10-28 21:27:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_cur_sectors [2020-10-28 21:27:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_set_intr [2020-10-28 21:27:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ps_tq_int [2020-10-28 21:27:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_open [2020-10-28 21:27:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_release [2020-10-28 21:27:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_ioctl [2020-10-28 21:27:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_block_check_events [2020-10-28 21:27:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_init_units [2020-10-28 21:27:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_open [2020-10-28 21:27:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_release [2020-10-28 21:27:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-28 21:27:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-28 21:27:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-28 21:27:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_wait [2020-10-28 21:27:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_command [2020-10-28 21:27:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_completion [2020-10-28 21:27:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_req_sense [2020-10-28 21:27:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_atapi [2020-10-28 21:27:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_packet [2020-10-28 21:27:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_check_events [2020-10-28 21:27:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_lock_door [2020-10-28 21:27:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_tray_move [2020-10-28 21:27:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_sleep [2020-10-28 21:27:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_reset [2020-10-28 21:27:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_drive_reset [2020-10-28 21:27:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_ready_wait [2020-10-28 21:27:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_drive_status [2020-10-28 21:27:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_identify [2020-10-28 21:27:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_probe [2020-10-28 21:27:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_probe_capabilities [2020-10-28 21:27:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_detect [2020-10-28 21:27:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_request [2020-10-28 21:27:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure next_request [2020-10-28 21:27:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_ready [2020-10-28 21:27:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_transfer [2020-10-28 21:27:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_start [2020-10-28 21:27:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_read [2020-10-28 21:27:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pcd_read_drq [2020-10-28 21:27:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_audio_ioctl [2020-10-28 21:27:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_get_mcn [2020-10-28 21:27:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_init [2020-10-28 21:27:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pcd_exit [2020-10-28 21:27:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 21:27:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-28 21:27:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-28 21:27:01,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-28 21:27:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2020-10-28 21:27:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2020-10-28 21:27:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2020-10-28 21:27:01,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-28 21:27:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-28 21:27:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-28 21:27:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2020-10-28 21:27:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-28 21:27:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2020-10-28 21:27:01,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-28 21:27:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 21:27:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 21:27:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 21:27:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 21:27:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-28 21:27:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-28 21:27:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-28 21:27:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 21:27:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-28 21:27:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-28 21:27:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 21:27:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 21:27:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 21:27:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 21:27:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 21:27:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 21:27:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 21:27:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pcd_mutex [2020-10-28 21:27:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pcd_mutex [2020-10-28 21:27:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pcd_mutex [2020-10-28 21:27:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pcd_mutex [2020-10-28 21:27:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pcd_mutex [2020-10-28 21:27:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pcd_mutex [2020-10-28 21:27:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pcd_mutex [2020-10-28 21:27:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 21:27:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 21:27:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2020-10-28 21:27:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_cur [2020-10-28 21:27:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-28 21:27:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-28 21:27:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 21:27:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2020-10-28 21:27:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2020-10-28 21:27:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 21:27:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2020-10-28 21:27:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_queue [2020-10-28 21:27:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_check_events [2020-10-28 21:27:01,901 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_ioctl [2020-10-28 21:27:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_open [2020-10-28 21:27:01,902 INFO L138 BoogieDeclarations]: Found implementation of procedure cdrom_release [2020-10-28 21:27:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2020-10-28 21:27:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure delayed_work_timer_fn [2020-10-28 21:27:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-28 21:27:01,903 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-28 21:27:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 21:27:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-28 21:27:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-28 21:27:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_do_claimed [2020-10-28 21:27:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-28 21:27:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-28 21:27:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-28 21:27:01,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-28 21:27:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-28 21:27:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-28 21:27:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 21:27:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2020-10-28 21:27:01,906 INFO L138 BoogieDeclarations]: Found implementation of procedure register_blkdev [2020-10-28 21:27:01,906 INFO L138 BoogieDeclarations]: Found implementation of procedure register_cdrom [2020-10-28 21:27:01,906 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2020-10-28 21:27:01,907 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-28 21:27:01,908 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2020-10-28 21:27:01,910 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_cdrom [2020-10-28 21:27:01,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 21:27:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 21:27:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-28 21:27:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 21:27:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 21:27:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 21:27:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 21:27:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 21:27:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 21:27:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 21:27:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-28 21:27:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 21:27:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-28 21:27:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-28 21:27:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2020-10-28 21:27:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 21:27:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-28 21:27:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2020-10-28 21:27:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-28 21:27:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-28 21:27:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-28 21:27:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-28 21:27:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-28 21:27:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-28 21:27:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-28 21:27:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2020-10-28 21:27:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-28 21:27:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2020-10-28 21:27:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2020-10-28 21:27:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-28 21:27:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-28 21:27:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 21:27:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 21:27:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 21:27:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pcd_mutex [2020-10-28 21:27:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pcd_mutex [2020-10-28 21:27:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 21:27:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-28 21:27:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 21:27:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 21:27:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 21:27:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-10-28 21:27:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2020-10-28 21:27:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure register_blkdev [2020-10-28 21:27:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2020-10-28 21:27:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-28 21:27:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_open [2020-10-28 21:27:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_release [2020-10-28 21:27:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_ioctl [2020-10-28 21:27:01,926 INFO L130 BoogieDeclarations]: Found specification of procedure cdrom_check_events [2020-10-28 21:27:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure register_cdrom [2020-10-28 21:27:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_cdrom [2020-10-28 21:27:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-28 21:27:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2020-10-28 21:27:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2020-10-28 21:27:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2020-10-28 21:27:01,927 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2020-10-28 21:27:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure bio_cur_bytes [2020-10-28 21:27:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 21:27:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 21:27:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2020-10-28 21:27:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_bytes [2020-10-28 21:27:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_cur_sectors [2020-10-28 21:27:01,928 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2020-10-28 21:27:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2020-10-28 21:27:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_cur [2020-10-28 21:27:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_queue [2020-10-28 21:27:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2020-10-28 21:27:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-28 21:27:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-28 21:27:01,929 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-28 21:27:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-28 21:27:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-28 21:27:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-28 21:27:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-28 21:27:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-28 21:27:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure pi_do_claimed [2020-10-28 21:27:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure ps_tq_int [2020-10-28 21:27:01,930 INFO L130 BoogieDeclarations]: Found specification of procedure ps_set_intr [2020-10-28 21:27:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-28 21:27:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2020-10-28 21:27:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_open [2020-10-28 21:27:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_release [2020-10-28 21:27:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_drive_status [2020-10-28 21:27:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_check_events [2020-10-28 21:27:01,931 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_tray_move [2020-10-28 21:27:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_lock_door [2020-10-28 21:27:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_drive_reset [2020-10-28 21:27:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_get_mcn [2020-10-28 21:27:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_audio_ioctl [2020-10-28 21:27:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_packet [2020-10-28 21:27:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_detect [2020-10-28 21:27:01,932 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_probe_capabilities [2020-10-28 21:27:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_read_drq [2020-10-28 21:27:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_request [2020-10-28 21:27:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure do_pcd_read [2020-10-28 21:27:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_open [2020-10-28 21:27:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_release [2020-10-28 21:27:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_ioctl [2020-10-28 21:27:01,933 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_block_check_events [2020-10-28 21:27:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 21:27:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_init_units [2020-10-28 21:27:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 21:27:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-28 21:27:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 21:27:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 21:27:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-28 21:27:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-28 21:27:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-28 21:27:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_wait [2020-10-28 21:27:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_command [2020-10-28 21:27:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_completion [2020-10-28 21:27:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_req_sense [2020-10-28 21:27:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 21:27:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_atapi [2020-10-28 21:27:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_sleep [2020-10-28 21:27:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_reset [2020-10-28 21:27:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_ready_wait [2020-10-28 21:27:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_identify [2020-10-28 21:27:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 21:27:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_probe [2020-10-28 21:27:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure next_request [2020-10-28 21:27:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_ready [2020-10-28 21:27:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_transfer [2020-10-28 21:27:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_start [2020-10-28 21:27:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_init [2020-10-28 21:27:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure pcd_exit [2020-10-28 21:27:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 21:27:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 21:27:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 21:27:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 21:27:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 21:27:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 21:27:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 21:27:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 21:27:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-28 21:27:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-28 21:27:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 21:27:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-28 21:27:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 21:27:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 21:27:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 21:27:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 21:27:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pcd_mutex [2020-10-28 21:27:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pcd_mutex [2020-10-28 21:27:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pcd_mutex [2020-10-28 21:27:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pcd_mutex [2020-10-28 21:27:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pcd_mutex [2020-10-28 21:27:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 21:27:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 21:27:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 21:27:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 21:27:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-28 21:27:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 21:27:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 21:27:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 21:27:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 21:27:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 21:27:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 21:27:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 21:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 21:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 21:27:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 21:27:10,340 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 21:27:10,341 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-28 21:27:10,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:27:10 BoogieIcfgContainer [2020-10-28 21:27:10,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 21:27:10,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 21:27:10,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 21:27:10,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 21:27:10,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:26:59" (1/3) ... [2020-10-28 21:27:10,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7d8e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:27:10, skipping insertion in model container [2020-10-28 21:27:10,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:27:01" (2/3) ... [2020-10-28 21:27:10,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7d8e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:27:10, skipping insertion in model container [2020-10-28 21:27:10,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:27:10" (3/3) ... [2020-10-28 21:27:10,363 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pcd.ko-main.cil.out.i [2020-10-28 21:27:10,380 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 21:27:10,388 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 21:27:10,402 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 21:27:10,450 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 21:27:10,451 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 21:27:10,451 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 21:27:10,451 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 21:27:10,451 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 21:27:10,451 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 21:27:10,451 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 21:27:10,451 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 21:27:10,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states. [2020-10-28 21:27:10,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-28 21:27:10,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:27:10,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 21:27:10,506 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:27:10,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:27:10,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1013326651, now seen corresponding path program 1 times [2020-10-28 21:27:10,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:27:10,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500230469] [2020-10-28 21:27:10,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:27:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:27:11,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:27:11,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:27:15,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:27:16,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:27:16,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-28 21:27:16,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 21:27:16,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 21:27:16,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:27:16,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:27:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:27:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 21:27:16,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 21:27:16,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 21:27:18,509 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 613 [2020-10-28 21:27:18,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:27:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:27:18,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:27:18,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:27:18,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:27:18,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:27:18,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-28 21:27:18,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:27:18,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:27:18,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:27:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:27:18,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:27:18,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:27:18,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:27:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:27:18,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:27:18,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:27:18,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:27:18,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:27:18,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:27:18,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:27:18,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:27:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:27:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:27:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:27:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:27:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:27:18,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500230469] [2020-10-28 21:27:18,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:27:18,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 21:27:18,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747763909] [2020-10-28 21:27:18,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 21:27:18,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:27:18,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 21:27:18,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 21:27:18,905 INFO L87 Difference]: Start difference. First operand 1036 states. Second operand 5 states. [2020-10-28 21:27:22,341 WARN L193 SmtUtils]: Spent 2.56 s on a formula simplification that was a NOOP. DAG size: 615 [2020-10-28 21:27:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:27:59,440 INFO L93 Difference]: Finished difference Result 2722 states and 3816 transitions. [2020-10-28 21:27:59,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 21:27:59,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-28 21:27:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:27:59,485 INFO L225 Difference]: With dead ends: 2722 [2020-10-28 21:27:59,485 INFO L226 Difference]: Without dead ends: 1788 [2020-10-28 21:27:59,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 21:27:59,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2020-10-28 21:28:00,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1682. [2020-10-28 21:28:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2020-10-28 21:28:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2253 transitions. [2020-10-28 21:28:00,265 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2253 transitions. Word has length 30 [2020-10-28 21:28:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:28:00,266 INFO L481 AbstractCegarLoop]: Abstraction has 1682 states and 2253 transitions. [2020-10-28 21:28:00,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 21:28:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2253 transitions. [2020-10-28 21:28:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 21:28:00,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:28:00,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 21:28:00,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 21:28:00,272 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:28:00,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:28:00,273 INFO L82 PathProgramCache]: Analyzing trace with hash 656308169, now seen corresponding path program 1 times [2020-10-28 21:28:00,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:28:00,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784300682] [2020-10-28 21:28:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:28:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:00,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:03,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:03,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-28 21:28:03,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 21:28:03,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3268 [2020-10-28 21:28:03,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:03,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:28:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 21:28:03,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 21:28:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:28:06,308 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 613 [2020-10-28 21:28:06,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:28:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:06,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:06,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:06,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:28:06,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:28:06,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-28 21:28:06,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:06,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:06,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:28:06,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:28:06,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:28:06,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:28:07,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:28:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:07,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:07,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:07,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:28:07,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:28:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 21:28:07,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:07,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:28:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:28:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 21:28:07,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:28:07,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 21:28:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:07,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:07,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:07,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 21:28:07,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:28:07,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 21:28:07,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:07,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:28:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 21:28:07,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 21:28:07,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:28:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:28:07,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784300682] [2020-10-28 21:28:07,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:28:07,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 21:28:07,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774489798] [2020-10-28 21:28:07,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 21:28:07,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:28:07,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 21:28:07,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-28 21:28:07,149 INFO L87 Difference]: Start difference. First operand 1682 states and 2253 transitions. Second operand 7 states. [2020-10-28 21:28:11,840 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification that was a NOOP. DAG size: 615 [2020-10-28 21:28:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:28:44,907 INFO L93 Difference]: Finished difference Result 3635 states and 4991 transitions. [2020-10-28 21:28:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 21:28:44,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-10-28 21:28:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:28:44,925 INFO L225 Difference]: With dead ends: 3635 [2020-10-28 21:28:44,925 INFO L226 Difference]: Without dead ends: 1964 [2020-10-28 21:28:44,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-28 21:28:44,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2020-10-28 21:28:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1682. [2020-10-28 21:28:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2020-10-28 21:28:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2251 transitions. [2020-10-28 21:28:45,515 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2251 transitions. Word has length 32 [2020-10-28 21:28:45,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:28:45,516 INFO L481 AbstractCegarLoop]: Abstraction has 1682 states and 2251 transitions. [2020-10-28 21:28:45,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 21:28:45,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2251 transitions. [2020-10-28 21:28:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-28 21:28:45,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:28:45,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 21:28:45,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 21:28:45,519 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:28:45,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:28:45,519 INFO L82 PathProgramCache]: Analyzing trace with hash 238069534, now seen corresponding path program 1 times [2020-10-28 21:28:45,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:28:45,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828533184] [2020-10-28 21:28:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:28:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:45,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:45,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:46,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:49,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:49,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 21:28:49,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 21:28:49,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3688 [2020-10-28 21:28:49,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:49,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:28:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:28:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 21:28:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:28:51,925 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 613 [2020-10-28 21:28:51,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:28:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:51,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:52,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:52,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:28:52,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:28:52,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-28 21:28:52,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:52,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:28:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:28:52,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:28:52,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:28:52,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:28:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:52,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:52,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:52,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:28:52,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:28:52,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 21:28:52,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:52,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:28:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:28:52,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:28:52,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:28:52,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:28:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:52,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:52,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:52,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:52,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 21:28:52,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:28:52,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 21:28:52,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:52,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:28:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:28:52,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 21:28:52,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:28:52,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 21:28:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:52,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:52,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:52,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:28:52,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:28:52,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:28:52,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:52,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:28:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:28:52,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:28:52,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:28:52,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:28:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:28:52,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:28:52,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:28:52,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:28:52,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:28:52,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 21:28:52,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:28:52,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:28:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:28:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:28:52,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:28:52,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:28:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:28:52,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828533184] [2020-10-28 21:28:52,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:28:52,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 21:28:52,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091692990] [2020-10-28 21:28:52,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 21:28:52,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:28:52,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 21:28:52,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 21:28:52,292 INFO L87 Difference]: Start difference. First operand 1682 states and 2251 transitions. Second operand 5 states. [2020-10-28 21:28:57,133 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 615 [2020-10-28 21:29:17,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:29:17,792 INFO L93 Difference]: Finished difference Result 1774 states and 2406 transitions. [2020-10-28 21:29:17,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 21:29:17,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-10-28 21:29:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:29:17,805 INFO L225 Difference]: With dead ends: 1774 [2020-10-28 21:29:17,806 INFO L226 Difference]: Without dead ends: 1769 [2020-10-28 21:29:17,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 21:29:17,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2020-10-28 21:29:18,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1681. [2020-10-28 21:29:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2020-10-28 21:29:18,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2249 transitions. [2020-10-28 21:29:18,296 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2249 transitions. Word has length 37 [2020-10-28 21:29:18,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:29:18,297 INFO L481 AbstractCegarLoop]: Abstraction has 1681 states and 2249 transitions. [2020-10-28 21:29:18,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 21:29:18,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2249 transitions. [2020-10-28 21:29:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 21:29:18,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:29:18,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 21:29:18,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 21:29:18,300 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:29:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:29:18,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1756454485, now seen corresponding path program 1 times [2020-10-28 21:29:18,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:29:18,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923100963] [2020-10-28 21:29:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:29:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:18,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:18,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:19,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:21,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:21,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 21:29:21,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 21:29:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3390 [2020-10-28 21:29:21,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:21,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:29:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:29:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 21:29:21,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:24,518 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 613 [2020-10-28 21:29:24,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:29:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:24,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:24,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:24,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:29:24,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:29:24,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 21:29:24,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:24,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:24,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:29:24,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:24,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:29:24,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:24,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:29:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:24,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:24,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:24,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:29:24,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:29:24,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 21:29:24,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:24,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:29:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:29:24,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 21:29:24,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:29:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:24,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:24,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:24,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:24,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 21:29:24,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:29:24,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 21:29:24,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:24,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:29:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 21:29:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:24,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 21:29:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:24,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:24,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:24,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:29:24,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:29:24,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 21:29:24,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:24,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:29:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:24,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:29:24,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:24,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:29:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:24,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:24,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:24,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:29:24,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:29:24,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 21:29:24,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:24,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:24,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:29:24,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:24,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:29:24,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:29:24,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923100963] [2020-10-28 21:29:24,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:29:24,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 21:29:24,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055110225] [2020-10-28 21:29:24,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 21:29:24,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:29:24,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 21:29:24,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 21:29:24,899 INFO L87 Difference]: Start difference. First operand 1681 states and 2249 transitions. Second operand 5 states. [2020-10-28 21:29:30,372 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 615 [2020-10-28 21:29:52,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:29:52,147 INFO L93 Difference]: Finished difference Result 1773 states and 2404 transitions. [2020-10-28 21:29:52,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 21:29:52,156 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-10-28 21:29:52,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:29:52,167 INFO L225 Difference]: With dead ends: 1773 [2020-10-28 21:29:52,167 INFO L226 Difference]: Without dead ends: 1768 [2020-10-28 21:29:52,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 21:29:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2020-10-28 21:29:52,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1680. [2020-10-28 21:29:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-10-28 21:29:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2247 transitions. [2020-10-28 21:29:52,784 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2247 transitions. Word has length 38 [2020-10-28 21:29:52,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:29:52,784 INFO L481 AbstractCegarLoop]: Abstraction has 1680 states and 2247 transitions. [2020-10-28 21:29:52,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 21:29:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2247 transitions. [2020-10-28 21:29:52,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-28 21:29:52,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:29:52,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 21:29:52,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 21:29:52,787 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:29:52,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:29:52,788 INFO L82 PathProgramCache]: Analyzing trace with hash 842487553, now seen corresponding path program 1 times [2020-10-28 21:29:52,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:29:52,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649835795] [2020-10-28 21:29:52,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:29:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:52,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:53,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:53,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:55,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:55,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 21:29:55,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 21:29:55,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2772 [2020-10-28 21:29:55,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:55,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:55,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:29:55,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:29:55,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 21:29:55,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:58,286 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 613 [2020-10-28 21:29:58,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:29:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:58,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:58,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:58,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:29:58,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:29:58,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-28 21:29:58,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:58,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:58,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:29:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:58,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:29:58,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:58,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:29:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:58,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:58,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:58,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:29:58,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:29:58,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 21:29:58,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:58,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:29:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:29:58,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:58,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:29:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:58,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:58,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:58,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 21:29:58,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:58,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 21:29:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:58,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:58,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:58,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:29:58,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:29:58,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:29:58,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:58,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:58,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:29:58,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:58,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:29:58,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:58,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:29:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:29:58,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:29:58,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:29:58,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:29:58,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:29:58,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 21:29:58,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:29:58,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:29:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:29:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:29:58,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:29:58,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:29:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:29:58,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649835795] [2020-10-28 21:29:58,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:29:58,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 21:29:58,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890439068] [2020-10-28 21:29:58,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 21:29:58,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:29:58,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 21:29:58,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 21:29:58,616 INFO L87 Difference]: Start difference. First operand 1680 states and 2247 transitions. Second operand 5 states. [2020-10-28 21:30:02,542 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification that was a NOOP. DAG size: 615 [2020-10-28 21:30:22,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 21:30:22,519 INFO L93 Difference]: Finished difference Result 1772 states and 2402 transitions. [2020-10-28 21:30:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 21:30:22,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-10-28 21:30:22,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 21:30:22,531 INFO L225 Difference]: With dead ends: 1772 [2020-10-28 21:30:22,531 INFO L226 Difference]: Without dead ends: 1767 [2020-10-28 21:30:22,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 21:30:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-10-28 21:30:23,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1679. [2020-10-28 21:30:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1679 states. [2020-10-28 21:30:23,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2245 transitions. [2020-10-28 21:30:23,122 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2245 transitions. Word has length 39 [2020-10-28 21:30:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 21:30:23,123 INFO L481 AbstractCegarLoop]: Abstraction has 1679 states and 2245 transitions. [2020-10-28 21:30:23,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 21:30:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2245 transitions. [2020-10-28 21:30:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-28 21:30:23,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 21:30:23,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 21:30:23,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 21:30:23,132 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 21:30:23,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 21:30:23,133 INFO L82 PathProgramCache]: Analyzing trace with hash -190010706, now seen corresponding path program 1 times [2020-10-28 21:30:23,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 21:30:23,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629554942] [2020-10-28 21:30:23,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 21:30:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:30:23,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:23,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:23,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:25,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:30:25,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-28 21:30:25,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 21:30:25,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2253 [2020-10-28 21:30:25,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:30:25,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:30:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:30:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 21:30:25,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 21:30:25,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:30:28,047 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification that was a NOOP. DAG size: 613 [2020-10-28 21:30:28,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 21:30:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:30:28,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:28,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:30:28,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:30:28,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:30:28,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 21:30:28,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:30:28,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:30:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:30:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:30:28,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:30:28,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:30:28,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:30:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:30:28,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:28,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:30:28,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:30:28,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:30:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 21:30:28,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:30:28,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:30:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:30:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:30:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 21:30:28,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:30:28,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 21:30:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:30:28,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:28,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:28,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:30:28,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-28 21:30:28,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 21:30:28,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 21:30:28,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:30:28,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:30:28,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 21:30:28,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:30:28,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 21:30:28,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:30:28,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 21:30:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:30:28,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:28,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:30:28,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:30:28,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:30:28,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:30:28,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:30:28,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:30:28,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:30:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:30:28,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:30:28,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:30:28,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 21:30:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 21:30:28,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 21:30:28,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 21:30:28,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 21:30:28,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 21:30:28,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 21:30:28,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 21:30:28,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 21:30:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 21:30:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 21:30:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 21:30:28,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 21:30:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 21:30:28,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629554942] [2020-10-28 21:30:28,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 21:30:28,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 21:30:28,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495261100] [2020-10-28 21:30:28,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 21:30:28,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 21:30:28,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 21:30:28,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 21:30:28,315 INFO L87 Difference]: Start difference. First operand 1679 states and 2245 transitions. Second operand 5 states. [2020-10-28 21:30:32,504 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification that was a NOOP. DAG size: 615