/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 17:22:58,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 17:22:58,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 17:22:58,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 17:22:58,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 17:22:58,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 17:22:58,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 17:22:58,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 17:22:58,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 17:22:58,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 17:22:58,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 17:22:58,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 17:22:58,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 17:22:58,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 17:22:58,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 17:22:58,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 17:22:58,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 17:22:58,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 17:22:58,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 17:22:58,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 17:22:58,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 17:22:58,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 17:22:58,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 17:22:58,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 17:22:58,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 17:22:58,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 17:22:58,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 17:22:58,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 17:22:58,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 17:22:58,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 17:22:58,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 17:22:58,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 17:22:58,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 17:22:58,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 17:22:58,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 17:22:58,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 17:22:58,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 17:22:58,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 17:22:58,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 17:22:58,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 17:22:58,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 17:22:58,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 17:22:58,352 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 17:22:58,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 17:22:58,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 17:22:58,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 17:22:58,354 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 17:22:58,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 17:22:58,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 17:22:58,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 17:22:58,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 17:22:58,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 17:22:58,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 17:22:58,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 17:22:58,355 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 17:22:58,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 17:22:58,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 17:22:58,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 17:22:58,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 17:22:58,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 17:22:58,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 17:22:58,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 17:22:58,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 17:22:58,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 17:22:58,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 17:22:58,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 17:22:58,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 17:22:58,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 17:22:58,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 17:22:58,363 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 17:22:58,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 17:22:58,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 17:22:58,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 17:22:58,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 17:22:58,682 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 17:22:58,683 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2020-10-13 17:22:58,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49dbeeeff/88e6ba3cb15d4a63b76ae23ed5c29b86/FLAG98a1dccad [2020-10-13 17:22:59,494 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 17:22:59,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2020-10-13 17:22:59,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49dbeeeff/88e6ba3cb15d4a63b76ae23ed5c29b86/FLAG98a1dccad [2020-10-13 17:22:59,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/49dbeeeff/88e6ba3cb15d4a63b76ae23ed5c29b86 [2020-10-13 17:22:59,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 17:22:59,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 17:22:59,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 17:22:59,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 17:22:59,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 17:22:59,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:22:59" (1/1) ... [2020-10-13 17:22:59,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8d896d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:22:59, skipping insertion in model container [2020-10-13 17:22:59,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:22:59" (1/1) ... [2020-10-13 17:22:59,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 17:22:59,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 17:23:01,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:23:01,325 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 17:23:01,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 17:23:01,919 INFO L208 MainTranslator]: Completed translation [2020-10-13 17:23:01,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01 WrapperNode [2020-10-13 17:23:01,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 17:23:01,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 17:23:01,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 17:23:01,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 17:23:01,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (1/1) ... [2020-10-13 17:23:01,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (1/1) ... [2020-10-13 17:23:02,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (1/1) ... [2020-10-13 17:23:02,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (1/1) ... [2020-10-13 17:23:02,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (1/1) ... [2020-10-13 17:23:02,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (1/1) ... [2020-10-13 17:23:02,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (1/1) ... [2020-10-13 17:23:02,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 17:23:02,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 17:23:02,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 17:23:02,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 17:23:02,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (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 [2020-10-13 17:23:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 17:23:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 17:23:02,259 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-13 17:23:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 17:23:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-13 17:23:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-13 17:23:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2020-10-13 17:23:02,260 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2020-10-13 17:23:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-13 17:23:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2020-10-13 17:23:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2020-10-13 17:23:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 17:23:02,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 17:23:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 17:23:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 17:23:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 17:23:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-13 17:23:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 17:23:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2020-10-13 17:23:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2020-10-13 17:23:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-13 17:23:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2020-10-13 17:23:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2020-10-13 17:23:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2020-10-13 17:23:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2020-10-13 17:23:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2020-10-13 17:23:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2020-10-13 17:23:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2020-10-13 17:23:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2020-10-13 17:23:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2020-10-13 17:23:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2020-10-13 17:23:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2020-10-13 17:23:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2020-10-13 17:23:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_ready_wait [2020-10-13 17:23:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2020-10-13 17:23:02,265 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2020-10-13 17:23:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2020-10-13 17:23:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2020-10-13 17:23:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_detect [2020-10-13 17:23:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_open [2020-10-13 17:23:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_ioctl [2020-10-13 17:23:02,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_release [2020-10-13 17:23:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_read [2020-10-13 17:23:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2020-10-13 17:23:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_init [2020-10-13 17:23:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_exit [2020-10-13 17:23:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 17:23:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-13 17:23:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-13 17:23:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-13 17:23:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-13 17:23:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-13 17:23:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-13 17:23:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-13 17:23:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2020-10-13 17:23:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2020-10-13 17:23:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2020-10-13 17:23:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2020-10-13 17:23:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2020-10-13 17:23:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2020-10-13 17:23:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_14 [2020-10-13 17:23:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2020-10-13 17:23:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_16 [2020-10-13 17:23:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2020-10-13 17:23:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 17:23:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 17:23:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 17:23:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:23:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:23:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-13 17:23:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-13 17:23:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:23:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-13 17:23:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-13 17:23:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:23:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:23:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:23:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:23:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:23:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:23:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:23:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pt_mutex [2020-10-13 17:23:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_pt_mutex [2020-10-13 17:23:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2020-10-13 17:23:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_pt_mutex [2020-10-13 17:23:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_pt_mutex [2020-10-13 17:23:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_pt_mutex [2020-10-13 17:23:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2020-10-13 17:23:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 17:23:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 17:23:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2020-10-13 17:23:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 17:23:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2020-10-13 17:23:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2020-10-13 17:23:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-13 17:23:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 17:23:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2020-10-13 17:23:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2020-10-13 17:23:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2020-10-13 17:23:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 17:23:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-13 17:23:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-13 17:23:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-13 17:23:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2020-10-13 17:23:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2020-10-13 17:23:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2020-10-13 17:23:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2020-10-13 17:23:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2020-10-13 17:23:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2020-10-13 17:23:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2020-10-13 17:23:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2020-10-13 17:23:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 17:23:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-13 17:23:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-13 17:23:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 17:23:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 17:23:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 17:23:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 17:23:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 17:23:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 17:23:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-13 17:23:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-13 17:23:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 17:23:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-13 17:23:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 17:23:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-13 17:23:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 17:23:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2020-10-13 17:23:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2020-10-13 17:23:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-13 17:23:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-13 17:23:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-13 17:23:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-13 17:23:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-13 17:23:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-13 17:23:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2020-10-13 17:23:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2020-10-13 17:23:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2020-10-13 17:23:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2020-10-13 17:23:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2020-10-13 17:23:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-13 17:23:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-13 17:23:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-13 17:23:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-13 17:23:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2020-10-13 17:23:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2020-10-13 17:23:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_14 [2020-10-13 17:23:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-13 17:23:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-13 17:23:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-13 17:23:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-13 17:23:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-13 17:23:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2020-10-13 17:23:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2020-10-13 17:23:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 17:23:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 17:23:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-13 17:23:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2020-10-13 17:23:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2020-10-13 17:23:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2020-10-13 17:23:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_16 [2020-10-13 17:23:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2020-10-13 17:23:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2020-10-13 17:23:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-13 17:23:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 17:23:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 17:23:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 17:23:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 17:23:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 17:23:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 17:23:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 17:23:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 17:23:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 17:23:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 17:23:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2020-10-13 17:23:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2020-10-13 17:23:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2020-10-13 17:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2020-10-13 17:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-13 17:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 17:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-13 17:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-13 17:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 17:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2020-10-13 17:23:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2020-10-13 17:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2020-10-13 17:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2020-10-13 17:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2020-10-13 17:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2020-10-13 17:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2020-10-13 17:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2020-10-13 17:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure pt_open [2020-10-13 17:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure pt_ioctl [2020-10-13 17:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure pt_release [2020-10-13 17:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure pt_read [2020-10-13 17:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2020-10-13 17:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure pt_detect [2020-10-13 17:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2020-10-13 17:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2020-10-13 17:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2020-10-13 17:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-13 17:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2020-10-13 17:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2020-10-13 17:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 17:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2020-10-13 17:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2020-10-13 17:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2020-10-13 17:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 17:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2020-10-13 17:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2020-10-13 17:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2020-10-13 17:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2020-10-13 17:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2020-10-13 17:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2020-10-13 17:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2020-10-13 17:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure pt_ready_wait [2020-10-13 17:23:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2020-10-13 17:23:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2020-10-13 17:23:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 17:23:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2020-10-13 17:23:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure pt_init [2020-10-13 17:23:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure pt_exit [2020-10-13 17:23:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 17:23:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 17:23:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 17:23:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 17:23:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 17:23:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-13 17:23:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-13 17:23:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-13 17:23:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-13 17:23:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-13 17:23:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-13 17:23:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-13 17:23:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-13 17:23:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-13 17:23:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-13 17:23:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pt_mutex [2020-10-13 17:23:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_pt_mutex [2020-10-13 17:23:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_pt_mutex [2020-10-13 17:23:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_pt_mutex [2020-10-13 17:23:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_pt_mutex [2020-10-13 17:23:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 17:23:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 17:23:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 17:23:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 17:23:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 17:23:02,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 17:23:02,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 17:23:11,482 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 17:23:11,482 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 17:23:11,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:23:11 BoogieIcfgContainer [2020-10-13 17:23:11,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 17:23:11,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 17:23:11,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 17:23:11,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 17:23:11,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:22:59" (1/3) ... [2020-10-13 17:23:11,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507df2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:23:11, skipping insertion in model container [2020-10-13 17:23:11,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:23:01" (2/3) ... [2020-10-13 17:23:11,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507df2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:23:11, skipping insertion in model container [2020-10-13 17:23:11,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:23:11" (3/3) ... [2020-10-13 17:23:11,516 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2020-10-13 17:23:11,528 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 17:23:11,538 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 17:23:11,553 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 17:23:11,587 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 17:23:11,587 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 17:23:11,587 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 17:23:11,587 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 17:23:11,588 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 17:23:11,588 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 17:23:11,588 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 17:23:11,588 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 17:23:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states. [2020-10-13 17:23:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 17:23:11,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:11,641 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] [2020-10-13 17:23:11,641 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:11,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:11,647 INFO L82 PathProgramCache]: Analyzing trace with hash -353199037, now seen corresponding path program 1 times [2020-10-13 17:23:11,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:11,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097129850] [2020-10-13 17:23:11,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:12,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:12,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:13,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:17,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:17,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 17:23:17,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:23:17,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 17:23:17,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:23:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 17:23:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 17:23:18,702 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 508 [2020-10-13 17:23:18,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:18,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:18,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:18,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 17:23:18,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:18,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:18,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:18,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:18,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:18,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:18,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:18,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:18,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 17:23:18,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:18,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:18,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 17:23:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:18,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:18,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:18,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:18,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:18,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:23:18,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:18,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:18,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:23:18,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:18,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:18,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097129850] [2020-10-13 17:23:19,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:19,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 17:23:19,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710071582] [2020-10-13 17:23:19,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 17:23:19,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:19,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 17:23:19,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 17:23:19,028 INFO L87 Difference]: Start difference. First operand 931 states. Second operand 5 states. [2020-10-13 17:23:22,972 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 510 [2020-10-13 17:23:49,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:23:49,281 INFO L93 Difference]: Finished difference Result 1887 states and 2619 transitions. [2020-10-13 17:23:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 17:23:49,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-13 17:23:49,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:23:49,324 INFO L225 Difference]: With dead ends: 1887 [2020-10-13 17:23:49,324 INFO L226 Difference]: Without dead ends: 1061 [2020-10-13 17:23:49,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:23:49,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-10-13 17:23:49,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 982. [2020-10-13 17:23:49,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 982 states. [2020-10-13 17:23:49,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1304 transitions. [2020-10-13 17:23:49,785 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1304 transitions. Word has length 31 [2020-10-13 17:23:49,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:23:49,786 INFO L479 AbstractCegarLoop]: Abstraction has 982 states and 1304 transitions. [2020-10-13 17:23:49,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 17:23:49,786 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1304 transitions. [2020-10-13 17:23:49,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 17:23:49,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:23:49,789 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] [2020-10-13 17:23:49,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 17:23:49,789 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:23:49,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:23:49,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1193325662, now seen corresponding path program 1 times [2020-10-13 17:23:49,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:23:49,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989543571] [2020-10-13 17:23:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:23:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:49,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:50,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:50,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:50,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:52,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:52,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 17:23:52,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:23:52,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3011 [2020-10-13 17:23:52,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:52,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:23:52,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-13 17:23:52,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:23:52,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:54,063 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 508 [2020-10-13 17:23:54,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:23:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:54,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:54,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:54,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:54,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:54,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-13 17:23:54,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:54,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:23:54,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:23:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:54,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:54,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:54,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:23:54,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:54,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:23:54,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:54,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 17:23:54,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:23:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:23:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:23:54,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:23:54,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:23:54,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:23:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 17:23:54,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:23:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:23:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:23:54,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:23:54,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:23:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:23:54,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989543571] [2020-10-13 17:23:54,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:23:54,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:23:54,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239541777] [2020-10-13 17:23:54,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:23:54,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:23:54,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:23:54,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:23:54,415 INFO L87 Difference]: Start difference. First operand 982 states and 1304 transitions. Second operand 6 states. [2020-10-13 17:24:02,227 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 510 [2020-10-13 17:24:37,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:24:37,511 INFO L93 Difference]: Finished difference Result 1209 states and 1603 transitions. [2020-10-13 17:24:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:24:37,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-13 17:24:37,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:24:37,522 INFO L225 Difference]: With dead ends: 1209 [2020-10-13 17:24:37,523 INFO L226 Difference]: Without dead ends: 1198 [2020-10-13 17:24:37,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 17:24:37,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2020-10-13 17:24:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1124. [2020-10-13 17:24:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-10-13 17:24:37,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1483 transitions. [2020-10-13 17:24:37,945 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1483 transitions. Word has length 31 [2020-10-13 17:24:37,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:24:37,946 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1483 transitions. [2020-10-13 17:24:37,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 17:24:37,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1483 transitions. [2020-10-13 17:24:37,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-13 17:24:37,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:24:37,948 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] [2020-10-13 17:24:37,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 17:24:37,948 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:24:37,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:24:37,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1136067360, now seen corresponding path program 1 times [2020-10-13 17:24:37,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:24:37,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068403873] [2020-10-13 17:24:37,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:24:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:38,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:38,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:38,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:38,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 17:24:38,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:24:38,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 898 [2020-10-13 17:24:38,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:38,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:38,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:24:38,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 17:24:38,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:24:40,071 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 508 [2020-10-13 17:24:40,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:24:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:40,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:40,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:40,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:40,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:40,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-13 17:24:40,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:40,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:24:40,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:24:40,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:24:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:40,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:40,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:40,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:24:40,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:40,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 17:24:40,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:24:40,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:24:40,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 17:24:40,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:24:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:24:40,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:24:40,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:24:40,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 17:24:40,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:24:40,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 17:24:40,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:24:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:24:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 17:24:40,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 17:24:40,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 96 [2020-10-13 17:24:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:24:40,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068403873] [2020-10-13 17:24:40,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:24:40,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:24:40,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751303067] [2020-10-13 17:24:40,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:24:40,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:24:40,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:24:40,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:24:40,857 INFO L87 Difference]: Start difference. First operand 1124 states and 1483 transitions. Second operand 7 states. [2020-10-13 17:24:50,177 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 510 [2020-10-13 17:25:40,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:25:40,367 INFO L93 Difference]: Finished difference Result 2468 states and 3263 transitions. [2020-10-13 17:25:40,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 17:25:40,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-10-13 17:25:40,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:25:40,378 INFO L225 Difference]: With dead ends: 2468 [2020-10-13 17:25:40,378 INFO L226 Difference]: Without dead ends: 1355 [2020-10-13 17:25:40,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:25:40,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2020-10-13 17:25:40,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1286. [2020-10-13 17:25:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2020-10-13 17:25:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1690 transitions. [2020-10-13 17:25:40,690 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1690 transitions. Word has length 31 [2020-10-13 17:25:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:25:40,690 INFO L479 AbstractCegarLoop]: Abstraction has 1286 states and 1690 transitions. [2020-10-13 17:25:40,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:25:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1690 transitions. [2020-10-13 17:25:40,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-13 17:25:40,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:25:40,693 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] [2020-10-13 17:25:40,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 17:25:40,693 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:25:40,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:25:40,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1905343080, now seen corresponding path program 1 times [2020-10-13 17:25:40,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:25:40,694 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597015600] [2020-10-13 17:25:40,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:25:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:40,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:40,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:41,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:41,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:44,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:45,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:45,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-13 17:25:45,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 17:25:45,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4889 [2020-10-13 17:25:45,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 17:25:45,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:25:45,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:46,898 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 508 [2020-10-13 17:25:46,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:25:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:46,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:47,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:47,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:47,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 17:25:47,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:47,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:47,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:47,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:25:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:47,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:47,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:25:47,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:25:47,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:25:47,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:47,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:25:47,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:25:47,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:25:47,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:47,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 17:25:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:47,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:47,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 17:25:47,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:25:47,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 17:25:47,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:47,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:47,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 17:25:47,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:25:47,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:47,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:25:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:25:47,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:25:47,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:25:47,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 17:25:47,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 17:25:47,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 17:25:47,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:25:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:25:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:25:47,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:25:47,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:25:47,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:25:47,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597015600] [2020-10-13 17:25:47,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:25:47,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 17:25:47,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842834527] [2020-10-13 17:25:47,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 17:25:47,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:25:47,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 17:25:47,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 17:25:47,229 INFO L87 Difference]: Start difference. First operand 1286 states and 1690 transitions. Second operand 7 states. [2020-10-13 17:25:51,046 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 511 [2020-10-13 17:26:25,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 17:26:25,403 INFO L93 Difference]: Finished difference Result 2655 states and 3515 transitions. [2020-10-13 17:26:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 17:26:25,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-10-13 17:26:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 17:26:25,414 INFO L225 Difference]: With dead ends: 2655 [2020-10-13 17:26:25,414 INFO L226 Difference]: Without dead ends: 1380 [2020-10-13 17:26:25,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-13 17:26:25,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-13 17:26:25,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1288. [2020-10-13 17:26:25,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1288 states. [2020-10-13 17:26:25,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1692 transitions. [2020-10-13 17:26:25,810 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1692 transitions. Word has length 40 [2020-10-13 17:26:25,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 17:26:25,810 INFO L479 AbstractCegarLoop]: Abstraction has 1288 states and 1692 transitions. [2020-10-13 17:26:25,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 17:26:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1692 transitions. [2020-10-13 17:26:25,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 17:26:25,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 17:26:25,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 17:26:25,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 17:26:25,813 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 17:26:25,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 17:26:25,813 INFO L82 PathProgramCache]: Analyzing trace with hash -423085565, now seen corresponding path program 1 times [2020-10-13 17:26:25,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 17:26:25,814 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779490553] [2020-10-13 17:26:25,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 17:26:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:25,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:25,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:26,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:27,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:28,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:28,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-13 17:26:28,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 17:26:28,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3051 [2020-10-13 17:26:28,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-13 17:26:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:26:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:30,134 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 508 [2020-10-13 17:26:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 17:26:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:30,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:30,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:30,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:30,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 17:26:30,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:30,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:30,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:26:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:30,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:30,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:30,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:30,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:26:30,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:30,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:30,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:30,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:30,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:30,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 17:26:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:30,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:30,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:30,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:30,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-13 17:26:30,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 17:26:30,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 17:26:30,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:30,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 17:26:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 17:26:30,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 17:26:30,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:30,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 17:26:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:30,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:30,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:30,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:30,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:30,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:26:30,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 17:26:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:30,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:30,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 17:26:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:30,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:30,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:30,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 17:26:30,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 17:26:30,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:30,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 17:26:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:30,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:30,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:26:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:30,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:30,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:30,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 17:26:30,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:30,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 17:26:30,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:30,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:30,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:30,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:30,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 17:26:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 17:26:30,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 17:26:30,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 17:26:30,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 17:26:30,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 17:26:30,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 17:26:30,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 17:26:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 17:26:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 17:26:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 17:26:30,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 17:26:30,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 17:26:30,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779490553] [2020-10-13 17:26:30,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 17:26:30,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 17:26:30,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692133407] [2020-10-13 17:26:30,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 17:26:30,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 17:26:30,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 17:26:30,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 17:26:30,381 INFO L87 Difference]: Start difference. First operand 1288 states and 1692 transitions. Second operand 6 states. [2020-10-13 17:26:40,626 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 511