./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:26:53,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:26:53,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 11:26:53,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:26:53,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:26:53,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:26:53,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:26:53,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:26:53,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:26:53,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:26:53,755 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:26:53,756 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:26:53,756 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:26:53,756 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:26:53,757 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:26:53,757 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:26:53,757 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:26:53,758 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:26:53,758 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:26:53,758 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:26:53,762 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:26:53,763 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:26:53,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:26:53,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:26:53,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:26:53,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:26:53,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:26:53,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:26:53,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:26:53,769 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:26:53,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:26:53,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:26:53,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:26:53,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:26:53,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:26:53,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:26:53,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:26:53,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:26:53,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:26:53,774 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:26:53,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:26:53,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:26:53,775 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:26:53,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:26:53,775 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2024-11-02 11:26:54,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:26:54,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:26:54,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:26:54,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:26:54,153 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:26:54,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-02 11:26:56,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:26:56,699 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:26:56,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-02 11:26:56,744 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/data/b30220a15/7c3ddc2ca7274d94967d7dcf40dfdf88/FLAG881f2a7fd [2024-11-02 11:26:56,767 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/data/b30220a15/7c3ddc2ca7274d94967d7dcf40dfdf88 [2024-11-02 11:26:56,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:26:56,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:26:56,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:26:56,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:26:56,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:26:56,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:26:56" (1/1) ... [2024-11-02 11:26:56,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b397c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:56, skipping insertion in model container [2024-11-02 11:26:56,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:26:56" (1/1) ... [2024-11-02 11:26:56,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:26:57,780 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-02 11:26:58,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:26:58,417 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:26:58,543 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-02 11:26:58,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:26:58,800 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:26:58,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58 WrapperNode [2024-11-02 11:26:58,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:26:58,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:26:58,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:26:58,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:26:58,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:58,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,118 INFO L138 Inliner]: procedures = 113, calls = 1240, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 2689 [2024-11-02 11:26:59,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:26:59,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:26:59,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:26:59,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:26:59,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:26:59,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:26:59,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:26:59,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:26:59,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (1/1) ... [2024-11-02 11:26:59,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:26:59,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:26:59,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:26:59,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a230aa0-9a06-4881-ad23-d7f20f56d10b/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:26:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-02 11:26:59,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-02 11:26:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 11:26:59,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 11:26:59,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-02 11:26:59,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-02 11:26:59,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:26:59,401 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-02 11:26:59,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-02 11:26:59,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 11:26:59,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 11:26:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-02 11:26:59,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-02 11:26:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 11:26:59,403 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 11:26:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:26:59,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-02 11:26:59,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-02 11:26:59,404 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-02 11:26:59,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-02 11:26:59,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-02 11:26:59,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-02 11:26:59,405 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:26:59,405 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:26:59,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 11:26:59,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-02 11:26:59,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-02 11:26:59,406 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2024-11-02 11:26:59,406 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2024-11-02 11:26:59,407 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2024-11-02 11:26:59,407 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2024-11-02 11:26:59,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:26:59,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-02 11:26:59,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-02 11:26:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 11:26:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:26:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-02 11:26:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-02 11:26:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-02 11:26:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-02 11:26:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 11:26:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:26:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2024-11-02 11:26:59,410 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2024-11-02 11:26:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-02 11:26:59,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-02 11:26:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-02 11:26:59,411 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-02 11:26:59,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-02 11:26:59,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-02 11:26:59,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:26:59,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-02 11:26:59,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-02 11:26:59,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:26:59,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:26:59,919 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:26:59,922 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:27:00,094 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-02 11:27:00,160 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-02 11:27:07,097 INFO L? ?]: Removed 842 outVars from TransFormulas that were not future-live. [2024-11-02 11:27:07,097 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:27:07,621 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:27:07,625 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-02 11:27:07,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:27:07 BoogieIcfgContainer [2024-11-02 11:27:07,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:27:07,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:27:07,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:27:07,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:27:07,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:26:56" (1/3) ... [2024-11-02 11:27:07,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfd74e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:27:07, skipping insertion in model container [2024-11-02 11:27:07,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:26:58" (2/3) ... [2024-11-02 11:27:07,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfd74e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:27:07, skipping insertion in model container [2024-11-02 11:27:07,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:27:07" (3/3) ... [2024-11-02 11:27:07,640 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-02 11:27:07,665 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:27:07,665 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:27:07,766 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:27:07,772 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5514174e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:27:07,772 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:27:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 406 states, 266 states have (on average 1.4248120300751879) internal successors, (379), 292 states have internal predecessors, (379), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-02 11:27:07,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-02 11:27:07,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:27:07,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:27:07,791 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:27:07,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:27:07,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1104889981, now seen corresponding path program 1 times [2024-11-02 11:27:07,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:27:07,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56435548] [2024-11-02 11:27:07,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:27:07,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:27:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:27:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:27:11,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:27:11,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56435548] [2024-11-02 11:27:11,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56435548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:27:11,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:27:11,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:27:11,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097411429] [2024-11-02 11:27:11,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:27:11,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:27:11,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:27:11,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:27:11,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:27:11,277 INFO L87 Difference]: Start difference. First operand has 406 states, 266 states have (on average 1.4248120300751879) internal successors, (379), 292 states have internal predecessors, (379), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 11:27:13,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:27:15,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:27:17,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:27:17,194 INFO L93 Difference]: Finished difference Result 1192 states and 1842 transitions. [2024-11-02 11:27:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:27:17,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-02 11:27:17,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:27:17,216 INFO L225 Difference]: With dead ends: 1192 [2024-11-02 11:27:17,216 INFO L226 Difference]: Without dead ends: 775 [2024-11-02 11:27:17,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:27:17,226 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 572 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-02 11:27:17,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1089 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2024-11-02 11:27:17,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-02 11:27:17,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2024-11-02 11:27:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 515 states have (on average 1.3922330097087379) internal successors, (717), 551 states have internal predecessors, (717), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-02 11:27:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1158 transitions. [2024-11-02 11:27:17,408 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1158 transitions. Word has length 17 [2024-11-02 11:27:17,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:27:17,411 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1158 transitions. [2024-11-02 11:27:17,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 11:27:17,412 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1158 transitions. [2024-11-02 11:27:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 11:27:17,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:27:17,415 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:27:17,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:27:17,416 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:27:17,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:27:17,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1988699989, now seen corresponding path program 1 times [2024-11-02 11:27:17,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:27:17,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854708632] [2024-11-02 11:27:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:27:17,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:27:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:27:20,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-02 11:27:20,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:27:20,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854708632] [2024-11-02 11:27:20,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854708632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:27:20,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:27:20,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:27:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883137483] [2024-11-02 11:27:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:27:20,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:27:20,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:27:20,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:27:20,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:27:20,328 INFO L87 Difference]: Start difference. First operand 775 states and 1158 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-02 11:27:22,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:27:24,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:27:24,468 INFO L93 Difference]: Finished difference Result 967 states and 1400 transitions. [2024-11-02 11:27:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:27:24,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2024-11-02 11:27:24,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:27:24,478 INFO L225 Difference]: With dead ends: 967 [2024-11-02 11:27:24,478 INFO L226 Difference]: Without dead ends: 964 [2024-11-02 11:27:24,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:27:24,480 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 122 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:27:24,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1065 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-02 11:27:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-02 11:27:24,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 952. [2024-11-02 11:27:24,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 635 states have (on average 1.3700787401574803) internal successors, (870), 675 states have internal predecessors, (870), 259 states have call successors, (259), 58 states have call predecessors, (259), 57 states have return successors, (254), 228 states have call predecessors, (254), 254 states have call successors, (254) [2024-11-02 11:27:24,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1383 transitions. [2024-11-02 11:27:24,547 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1383 transitions. Word has length 25 [2024-11-02 11:27:24,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:27:24,548 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1383 transitions. [2024-11-02 11:27:24,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-02 11:27:24,548 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1383 transitions. [2024-11-02 11:27:24,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-02 11:27:24,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:27:24,550 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:27:24,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:27:24,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:27:24,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:27:24,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1520425265, now seen corresponding path program 1 times [2024-11-02 11:27:24,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:27:24,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948603469] [2024-11-02 11:27:24,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:27:24,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:27:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat