/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=SHALLOWEST --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--pt.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 08:10:49,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 08:10:49,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 08:10:49,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 08:10:49,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 08:10:49,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 08:10:49,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 08:10:49,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 08:10:49,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 08:10:49,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 08:10:49,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 08:10:49,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 08:10:49,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 08:10:49,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 08:10:49,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 08:10:49,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 08:10:49,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 08:10:49,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 08:10:49,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 08:10:49,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 08:10:49,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 08:10:49,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 08:10:49,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 08:10:49,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 08:10:49,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 08:10:49,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 08:10:49,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 08:10:49,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 08:10:49,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 08:10:49,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 08:10:49,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 08:10:49,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 08:10:49,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 08:10:49,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 08:10:49,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 08:10:49,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 08:10:49,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 08:10:49,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 08:10:49,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 08:10:49,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 08:10:49,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 08:10:49,219 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 [2020-10-27 08:10:49,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 08:10:49,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 08:10:49,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 08:10:49,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 08:10:49,280 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 08:10:49,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 08:10:49,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 08:10:49,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 08:10:49,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 08:10:49,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 08:10:49,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 08:10:49,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 08:10:49,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 08:10:49,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 08:10:49,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 08:10:49,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 08:10:49,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 08:10:49,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 08:10:49,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 08:10:49,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 08:10:49,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 08:10:49,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 08:10:49,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 08:10:49,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 08:10:49,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 08:10:49,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 08:10:49,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 08:10:49,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 08:10:49,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 08:10:49,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 08:10:49,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 08:10:49,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 08:10:49,731 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 08:10:49,732 INFO L432 ainManager$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--pt.ko-main.cil.out.i [2020-10-27 08:10:49,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1042a212d/61fc84fd6f134161a610baedf9a7f2df/FLAGd693ef281 [2020-10-27 08:10:50,952 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 08:10:50,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2020-10-27 08:10:51,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1042a212d/61fc84fd6f134161a610baedf9a7f2df/FLAGd693ef281 [2020-10-27 08:10:51,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1042a212d/61fc84fd6f134161a610baedf9a7f2df [2020-10-27 08:10:51,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 08:10:51,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 08:10:51,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 08:10:51,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 08:10:51,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 08:10:51,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:10:51" (1/1) ... [2020-10-27 08:10:51,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdea562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:51, skipping insertion in model container [2020-10-27 08:10:51,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:10:51" (1/1) ... [2020-10-27 08:10:51,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 08:10:51,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 08:10:52,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 08:10:52,761 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 08:10:53,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 08:10:53,419 INFO L208 MainTranslator]: Completed translation [2020-10-27 08:10:53,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53 WrapperNode [2020-10-27 08:10:53,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 08:10:53,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 08:10:53,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 08:10:53,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 08:10:53,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (1/1) ... [2020-10-27 08:10:53,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (1/1) ... [2020-10-27 08:10:53,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (1/1) ... [2020-10-27 08:10:53,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (1/1) ... [2020-10-27 08:10:53,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (1/1) ... [2020-10-27 08:10:53,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (1/1) ... [2020-10-27 08:10:53,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (1/1) ... [2020-10-27 08:10:53,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 08:10:53,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 08:10:53,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 08:10:53,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 08:10:53,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (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 [2020-10-27 08:10:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 08:10:53,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 08:10:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 08:10:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-27 08:10:53,803 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-27 08:10:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-27 08:10:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-27 08:10:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-27 08:10:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2020-10-27 08:10:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-27 08:10:53,805 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2020-10-27 08:10:53,806 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2020-10-27 08:10:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 08:10:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-27 08:10:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 08:10:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-27 08:10:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-27 08:10:53,810 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-27 08:10:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-27 08:10:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-27 08:10:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-27 08:10:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-27 08:10:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2020-10-27 08:10:53,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2020-10-27 08:10:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2020-10-27 08:10:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2020-10-27 08:10:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2020-10-27 08:10:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2020-10-27 08:10:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2020-10-27 08:10:53,812 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2020-10-27 08:10:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2020-10-27 08:10:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2020-10-27 08:10:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2020-10-27 08:10:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2020-10-27 08:10:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_ready_wait [2020-10-27 08:10:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-27 08:10:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2020-10-27 08:10:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2020-10-27 08:10:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2020-10-27 08:10:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_detect [2020-10-27 08:10:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_open [2020-10-27 08:10:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_ioctl [2020-10-27 08:10:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_release [2020-10-27 08:10:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_read [2020-10-27 08:10:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2020-10-27 08:10:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_init [2020-10-27 08:10:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_exit [2020-10-27 08:10:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 08:10:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-27 08:10:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-27 08:10:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-27 08:10:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-27 08:10:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-27 08:10:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-27 08:10:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-27 08:10:53,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-27 08:10:53,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-27 08:10:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-10-27 08:10:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-27 08:10:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2020-10-27 08:10:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-27 08:10:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_14 [2020-10-27 08:10:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2020-10-27 08:10:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_16 [2020-10-27 08:10:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2020-10-27 08:10:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 08:10:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 08:10:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 08:10:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-27 08:10:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-27 08:10:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-27 08:10:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-27 08:10:53,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-27 08:10:53,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-27 08:10:53,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-27 08:10:53,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-27 08:10:53,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-27 08:10:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-27 08:10:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-27 08:10:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-27 08:10:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-27 08:10:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-27 08:10:53,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pt_mutex [2020-10-27 08:10:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pt_mutex [2020-10-27 08:10:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2020-10-27 08:10:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pt_mutex [2020-10-27 08:10:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pt_mutex [2020-10-27 08:10:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pt_mutex [2020-10-27 08:10:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2020-10-27 08:10:53,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 08:10:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 08:10:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2020-10-27 08:10:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-27 08:10:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2020-10-27 08:10:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2020-10-27 08:10:53,828 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-27 08:10:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-27 08:10:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-27 08:10:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-27 08:10:53,829 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-27 08:10:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-27 08:10:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-27 08:10:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-27 08:10:53,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-27 08:10:53,831 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-27 08:10:53,831 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-27 08:10:53,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-27 08:10:53,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-27 08:10:53,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-27 08:10:53,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-27 08:10:53,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-27 08:10:53,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-27 08:10:53,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-27 08:10:53,833 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-27 08:10:53,834 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-27 08:10:53,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 08:10:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 08:10:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 08:10:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 08:10:53,834 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 08:10:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 08:10:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 08:10:53,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 08:10:53,836 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-27 08:10:53,836 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-27 08:10:53,837 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-27 08:10:53,838 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-27 08:10:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-27 08:10:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-27 08:10:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-27 08:10:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 08:10:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-27 08:10:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 08:10:53,843 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-27 08:10:53,843 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2020-10-27 08:10:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-27 08:10:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-27 08:10:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-27 08:10:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-27 08:10:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-27 08:10:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-27 08:10:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-27 08:10:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-10-27 08:10:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-27 08:10:53,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-27 08:10:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2020-10-27 08:10:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-27 08:10:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-27 08:10:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-27 08:10:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-27 08:10:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-27 08:10:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2020-10-27 08:10:53,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_14 [2020-10-27 08:10:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-27 08:10:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-27 08:10:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-27 08:10:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-27 08:10:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-27 08:10:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2020-10-27 08:10:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2020-10-27 08:10:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 08:10:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-27 08:10:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2020-10-27 08:10:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2020-10-27 08:10:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2020-10-27 08:10:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_16 [2020-10-27 08:10:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2020-10-27 08:10:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2020-10-27 08:10:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-27 08:10:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-27 08:10:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 08:10:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 08:10:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 08:10:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-27 08:10:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 08:10:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 08:10:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-27 08:10:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-27 08:10:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2020-10-27 08:10:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-27 08:10:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-27 08:10:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-27 08:10:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-27 08:10:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-27 08:10:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-27 08:10:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-27 08:10:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-27 08:10:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-27 08:10:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-27 08:10:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-27 08:10:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-27 08:10:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-27 08:10:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-27 08:10:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-27 08:10:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-27 08:10:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure pt_open [2020-10-27 08:10:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure pt_ioctl [2020-10-27 08:10:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure pt_release [2020-10-27 08:10:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure pt_read [2020-10-27 08:10:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2020-10-27 08:10:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure pt_detect [2020-10-27 08:10:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2020-10-27 08:10:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-27 08:10:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-27 08:10:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-27 08:10:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2020-10-27 08:10:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2020-10-27 08:10:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2020-10-27 08:10:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2020-10-27 08:10:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2020-10-27 08:10:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2020-10-27 08:10:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure pt_ready_wait [2020-10-27 08:10:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-27 08:10:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2020-10-27 08:10:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 08:10:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2020-10-27 08:10:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure pt_init [2020-10-27 08:10:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure pt_exit [2020-10-27 08:10:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 08:10:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 08:10:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 08:10:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 08:10:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 08:10:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-27 08:10:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-27 08:10:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-27 08:10:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-27 08:10:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-27 08:10:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-27 08:10:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-27 08:10:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-27 08:10:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-27 08:10:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-27 08:10:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pt_mutex [2020-10-27 08:10:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pt_mutex [2020-10-27 08:10:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pt_mutex [2020-10-27 08:10:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pt_mutex [2020-10-27 08:10:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pt_mutex [2020-10-27 08:10:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 08:10:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-27 08:10:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 08:10:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 08:10:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 08:10:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 08:10:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 08:11:04,864 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 08:11:04,864 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-27 08:11:04,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:11:04 BoogieIcfgContainer [2020-10-27 08:11:04,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 08:11:04,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 08:11:04,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 08:11:04,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 08:11:04,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:10:51" (1/3) ... [2020-10-27 08:11:04,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252268b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:11:04, skipping insertion in model container [2020-10-27 08:11:04,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:10:53" (2/3) ... [2020-10-27 08:11:04,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252268b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:11:04, skipping insertion in model container [2020-10-27 08:11:04,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:11:04" (3/3) ... [2020-10-27 08:11:04,885 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2020-10-27 08:11:04,898 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 08:11:04,906 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 08:11:04,918 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 08:11:04,952 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 08:11:04,952 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 08:11:04,952 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 08:11:04,952 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 08:11:04,952 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 08:11:04,952 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 08:11:04,952 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 08:11:04,953 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 08:11:04,995 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states. [2020-10-27 08:11:05,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 08:11:05,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:11:05,007 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] [2020-10-27 08:11:05,008 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:11:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:11:05,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1576085332, now seen corresponding path program 1 times [2020-10-27 08:11:05,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:11:05,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966995582] [2020-10-27 08:11:05,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:11:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:05,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:05,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:08,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:10,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:10,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-27 08:11:10,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:11:10,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-27 08:11:10,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:10,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 08:11:10,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:11:10,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 08:11:10,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 08:11:14,149 WARN L193 SmtUtils]: Spent 3.42 s on a formula simplification that was a NOOP. DAG size: 520 [2020-10-27 08:11:14,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:11:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:14,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:14,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:14,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:14,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:14,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-27 08:11:14,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:11:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:11:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:14,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:11:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:14,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:14,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:14,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:14,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:14,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 08:11:14,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:14,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:14,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:14,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:11:14,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:14,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 08:11:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:11:14,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:11:14,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:11:14,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:11:14,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:11:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 08:11:14,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:11:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:11:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:11:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:11:14,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:11:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:11:14,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966995582] [2020-10-27 08:11:14,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:11:14,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 08:11:14,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408624153] [2020-10-27 08:11:14,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 08:11:14,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:11:14,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 08:11:14,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 08:11:14,577 INFO L87 Difference]: Start difference. First operand 936 states. Second operand 5 states. [2020-10-27 08:11:24,343 WARN L193 SmtUtils]: Spent 3.78 s on a formula simplification that was a NOOP. DAG size: 522 [2020-10-27 08:12:02,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:12:02,505 INFO L93 Difference]: Finished difference Result 1888 states and 2610 transitions. [2020-10-27 08:12:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 08:12:02,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-27 08:12:02,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:12:02,541 INFO L225 Difference]: With dead ends: 1888 [2020-10-27 08:12:02,543 INFO L226 Difference]: Without dead ends: 1063 [2020-10-27 08:12:02,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:12:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-10-27 08:12:03,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1003. [2020-10-27 08:12:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2020-10-27 08:12:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1324 transitions. [2020-10-27 08:12:03,069 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1324 transitions. Word has length 33 [2020-10-27 08:12:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:12:03,069 INFO L481 AbstractCegarLoop]: Abstraction has 1003 states and 1324 transitions. [2020-10-27 08:12:03,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 08:12:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1324 transitions. [2020-10-27 08:12:03,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 08:12:03,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:12:03,075 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] [2020-10-27 08:12:03,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 08:12:03,075 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:12:03,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:12:03,076 INFO L82 PathProgramCache]: Analyzing trace with hash 71529477, now seen corresponding path program 1 times [2020-10-27 08:12:03,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:12:03,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508152437] [2020-10-27 08:12:03,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:12:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:03,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:03,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:03,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:03,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:06,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 08:12:06,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:12:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3215 [2020-10-27 08:12:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 08:12:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 08:12:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 08:12:10,307 WARN L193 SmtUtils]: Spent 3.75 s on a formula simplification that was a NOOP. DAG size: 520 [2020-10-27 08:12:10,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:12:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:10,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:10,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:10,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:10,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:10,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-27 08:12:10,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:10,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:12:10,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:12:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:10,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:10,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:10,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:12:10,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:10,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 08:12:10,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:10,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:10,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:12:10,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:12:10,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:10,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:12:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:12:10,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:12:10,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:12:10,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 08:12:10,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:12:10,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 08:12:10,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:12:10,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:12:10,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 08:12:10,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 08:12:10,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:12:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:12:10,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508152437] [2020-10-27 08:12:10,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:12:10,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 08:12:10,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477416045] [2020-10-27 08:12:10,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 08:12:10,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:12:10,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 08:12:10,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:12:10,951 INFO L87 Difference]: Start difference. First operand 1003 states and 1324 transitions. Second operand 7 states. [2020-10-27 08:12:20,978 WARN L193 SmtUtils]: Spent 3.66 s on a formula simplification that was a NOOP. DAG size: 522 [2020-10-27 08:13:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:13:10,440 INFO L93 Difference]: Finished difference Result 2183 states and 2881 transitions. [2020-10-27 08:13:10,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 08:13:10,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-10-27 08:13:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:13:10,453 INFO L225 Difference]: With dead ends: 2183 [2020-10-27 08:13:10,453 INFO L226 Difference]: Without dead ends: 1191 [2020-10-27 08:13:10,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-27 08:13:10,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2020-10-27 08:13:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1131. [2020-10-27 08:13:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2020-10-27 08:13:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1483 transitions. [2020-10-27 08:13:10,868 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1483 transitions. Word has length 33 [2020-10-27 08:13:10,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:13:10,868 INFO L481 AbstractCegarLoop]: Abstraction has 1131 states and 1483 transitions. [2020-10-27 08:13:10,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 08:13:10,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1483 transitions. [2020-10-27 08:13:10,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 08:13:10,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:13:10,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:13:10,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 08:13:10,873 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:13:10,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:13:10,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1929590048, now seen corresponding path program 1 times [2020-10-27 08:13:10,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:13:10,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942049703] [2020-10-27 08:13:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:13:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:10,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:11,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:11,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:12,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:12,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:13,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:16,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:16,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-27 08:13:16,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 08:13:16,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-27 08:13:16,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:16,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-27 08:13:16,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:13:16,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 08:13:19,738 WARN L193 SmtUtils]: Spent 3.61 s on a formula simplification that was a NOOP. DAG size: 520 [2020-10-27 08:13:19,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:13:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:19,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:19,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:19,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:19,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:19,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-27 08:13:19,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:19,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:19,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:19,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:19,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:19,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:13:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:20,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:20,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:13:20,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:13:20,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 08:13:20,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:20,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:13:20,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:13:20,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:13:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:20,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:13:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:20,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:20,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 08:13:20,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 08:13:20,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 08:13:20,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 08:13:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 08:13:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:20,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:13:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:13:20,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:13:20,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:13:20,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 08:13:20,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:13:20,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 08:13:20,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:13:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:13:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 08:13:20,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 08:13:20,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:13:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:13:20,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942049703] [2020-10-27 08:13:20,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:13:20,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 08:13:20,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024696101] [2020-10-27 08:13:20,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 08:13:20,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:13:20,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 08:13:20,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:13:20,306 INFO L87 Difference]: Start difference. First operand 1131 states and 1483 transitions. Second operand 7 states. [2020-10-27 08:13:45,297 WARN L193 SmtUtils]: Spent 3.76 s on a formula simplification that was a NOOP. DAG size: 523 [2020-10-27 08:14:36,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 08:14:36,989 INFO L93 Difference]: Finished difference Result 2376 states and 3155 transitions. [2020-10-27 08:14:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 08:14:36,990 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2020-10-27 08:14:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 08:14:37,000 INFO L225 Difference]: With dead ends: 2376 [2020-10-27 08:14:37,000 INFO L226 Difference]: Without dead ends: 1256 [2020-10-27 08:14:37,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-27 08:14:37,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2020-10-27 08:14:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1155. [2020-10-27 08:14:37,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1155 states. [2020-10-27 08:14:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1521 transitions. [2020-10-27 08:14:37,353 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1521 transitions. Word has length 42 [2020-10-27 08:14:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 08:14:37,353 INFO L481 AbstractCegarLoop]: Abstraction has 1155 states and 1521 transitions. [2020-10-27 08:14:37,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 08:14:37,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1521 transitions. [2020-10-27 08:14:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 08:14:37,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 08:14:37,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 08:14:37,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 08:14:37,357 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 08:14:37,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 08:14:37,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1012067551, now seen corresponding path program 1 times [2020-10-27 08:14:37,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 08:14:37,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926839861] [2020-10-27 08:14:37,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 08:14:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:37,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:37,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:37,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:38,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:40,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:42,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-27 08:14:42,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 08:14:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-27 08:14:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:14:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 08:14:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 08:14:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:46,423 WARN L193 SmtUtils]: Spent 3.90 s on a formula simplification that was a NOOP. DAG size: 520 [2020-10-27 08:14:46,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 08:14:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:46,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:46,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:46,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:14:46,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:14:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-27 08:14:46,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:46,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:14:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:14:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:14:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:46,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 08:14:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:46,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:46,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 08:14:46,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 08:14:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 08:14:46,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:14:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:14:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 08:14:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:46,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 08:14:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:46,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:46,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:46,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:46,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:46,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 08:14:46,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:14:46,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 08:14:46,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:46,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 08:14:46,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:14:46,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 08:14:46,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:46,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 08:14:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 08:14:46,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:46,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:46,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 08:14:46,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 08:14:46,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 08:14:46,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 08:14:46,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 08:14:46,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 08:14:46,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 08:14:46,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 08:14:46,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 08:14:46,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 08:14:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 08:14:46,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926839861] [2020-10-27 08:14:46,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 08:14:46,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 08:14:46,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481164330] [2020-10-27 08:14:46,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 08:14:46,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 08:14:46,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 08:14:46,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 08:14:46,788 INFO L87 Difference]: Start difference. First operand 1155 states and 1521 transitions. Second operand 7 states.