./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:01:23,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:01:23,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:01:23,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:01:23,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:01:23,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:01:23,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:01:23,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:01:23,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:01:23,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:01:23,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:01:23,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:01:23,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:01:23,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:01:23,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:01:23,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:01:23,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:01:23,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:01:23,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:01:23,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:01:23,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:01:23,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:01:23,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:01:23,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:01:23,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:01:23,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:01:23,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:01:23,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:01:23,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:01:23,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:01:23,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:01:23,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:01:23,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:01:23,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:01:23,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:01:23,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:01:23,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:01:23,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:01:23,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:01:23,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:01:23,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:01:23,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:01:23,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:01:23,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:01:23,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:01:23,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:01:23,598 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:01:23,598 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:01:23,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:01:23,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:01:23,600 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:01:23,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:01:23,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:01:23,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:01:23,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:01:23,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:01:23,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:01:23,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:01:23,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:01:23,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:01:23,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:01:23,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:01:23,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:01:23,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:01:23,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:01:23,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:01:23,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:01:23,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:01:23,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:01:23,606 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:01:23,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:01:23,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:01:23,606 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:01:23,606 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2021-12-22 15:01:23,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:01:23,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:01:23,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:01:23,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:01:23,839 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:01:23,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-12-22 15:01:23,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/655af8335/b77e3bd4b457457fbb451c43fd99ad56/FLAG10d4cbf2a [2021-12-22 15:01:24,561 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:01:24,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-12-22 15:01:24,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/655af8335/b77e3bd4b457457fbb451c43fd99ad56/FLAG10d4cbf2a [2021-12-22 15:01:24,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/655af8335/b77e3bd4b457457fbb451c43fd99ad56 [2021-12-22 15:01:24,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:01:24,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:01:24,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:01:24,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:01:24,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:01:24,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:01:24" (1/1) ... [2021-12-22 15:01:24,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dc292f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:24, skipping insertion in model container [2021-12-22 15:01:24,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:01:24" (1/1) ... [2021-12-22 15:01:24,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:01:24,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:01:26,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2021-12-22 15:01:26,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:01:26,437 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:01:26,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2021-12-22 15:01:26,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:01:26,879 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:01:26,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26 WrapperNode [2021-12-22 15:01:26,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:01:26,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:01:26,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:01:26,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:01:26,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:26,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,094 INFO L137 Inliner]: procedures = 258, calls = 2260, calls flagged for inlining = 96, calls inlined = 93, statements flattened = 5893 [2021-12-22 15:01:27,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:01:27,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:01:27,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:01:27,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:01:27,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:01:27,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:01:27,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:01:27,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:01:27,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (1/1) ... [2021-12-22 15:01:27,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:01:27,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:01:27,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:01:27,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:01:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:01:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:01:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:01:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:01:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-12-22 15:01:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-12-22 15:01:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-22 15:01:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-22 15:01:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpctl_mutex [2021-12-22 15:01:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpctl_mutex [2021-12-22 15:01:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:01:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:01:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_GetIocState [2021-12-22 15:01:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_GetIocState [2021-12-22 15:01:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-22 15:01:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-22 15:01:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2021-12-22 15:01:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2021-12-22 15:01:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:01:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:01:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:01:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:01:27,482 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_syscall_down [2021-12-22 15:01:27,482 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_syscall_down [2021-12-22 15:01:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_device_driver_deregister [2021-12-22 15:01:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_device_driver_deregister [2021-12-22 15:01:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:01:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:01:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_remove [2021-12-22 15:01:27,483 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_remove [2021-12-22 15:01:27,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:01:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:01:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:01:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:01:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame [2021-12-22 15:01:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame [2021-12-22 15:01:27,484 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-22 15:01:27,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-22 15:01:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 15:01:27,485 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 15:01:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:01:27,485 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:01:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure __mptctl_ioctl [2021-12-22 15:01:27,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __mptctl_ioctl [2021-12-22 15:01:27,485 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_mpt_command [2021-12-22 15:01:27,486 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_mpt_command [2021-12-22 15:01:27,486 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_fw_download [2021-12-22 15:01:27,486 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_fw_download [2021-12-22 15:01:27,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:01:27,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:01:27,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2021-12-22 15:01:27,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2021-12-22 15:01:27,487 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame_hi_pri [2021-12-22 15:01:27,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame_hi_pri [2021-12-22 15:01:27,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:01:27,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:01:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:01:27,489 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:01:27,489 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_fw_memory [2021-12-22 15:01:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_fw_memory [2021-12-22 15:01:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_taskmgmt [2021-12-22 15:01:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_taskmgmt [2021-12-22 15:01:27,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:01:27,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:01:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:01:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:01:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_clear_taskmgmt_in_progress_flag [2021-12-22 15:01:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_clear_taskmgmt_in_progress_flag [2021-12-22 15:01:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_timeout_expired [2021-12-22 15:01:27,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_timeout_expired [2021-12-22 15:01:27,491 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-22 15:01:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-22 15:01:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 15:01:27,492 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 15:01:27,492 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 15:01:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 15:01:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpctl_mutex [2021-12-22 15:01:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpctl_mutex [2021-12-22 15:01:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_fasync [2021-12-22 15:01:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_fasync [2021-12-22 15:01:27,493 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:01:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:01:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-12-22 15:01:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-12-22 15:01:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:01:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_set_taskmgmt_in_progress_flag [2021-12-22 15:01:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_set_taskmgmt_in_progress_flag [2021-12-22 15:01:27,494 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:01:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:01:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_verify_adapter [2021-12-22 15:01:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_verify_adapter [2021-12-22 15:01:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:01:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:01:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:01:27,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:01:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:01:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 15:01:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 15:01:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_deregister [2021-12-22 15:01:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_deregister [2021-12-22 15:01:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_sgl [2021-12-22 15:01:27,498 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_sgl [2021-12-22 15:01:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:01:27,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:01:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:01:27,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:01:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:01:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:01:27,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:01:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 15:01:27,499 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 15:01:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:01:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:01:27,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:01:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:01:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_get_msg_frame [2021-12-22 15:01:27,500 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_get_msg_frame [2021-12-22 15:01:27,500 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 15:01:27,501 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 15:01:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2021-12-22 15:01:27,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2021-12-22 15:01:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_send_handshake_request [2021-12-22 15:01:27,501 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_send_handshake_request [2021-12-22 15:01:27,501 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_register [2021-12-22 15:01:27,502 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_register [2021-12-22 15:01:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2021-12-22 15:01:27,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2021-12-22 15:01:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2021-12-22 15:01:27,502 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2021-12-22 15:01:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:01:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-22 15:01:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:01:27,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:01:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_config [2021-12-22 15:01:27,503 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_config [2021-12-22 15:01:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_msg_frame [2021-12-22 15:01:27,503 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_msg_frame [2021-12-22 15:01:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 15:01:27,504 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 15:01:28,193 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:01:28,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:01:30,167 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:01:38,794 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:01:38,818 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:01:38,818 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:01:38,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:01:38 BoogieIcfgContainer [2021-12-22 15:01:38,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:01:38,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:01:38,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:01:38,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:01:38,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:01:24" (1/3) ... [2021-12-22 15:01:38,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a5b071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:01:38, skipping insertion in model container [2021-12-22 15:01:38,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:01:26" (2/3) ... [2021-12-22 15:01:38,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a5b071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:01:38, skipping insertion in model container [2021-12-22 15:01:38,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:01:38" (3/3) ... [2021-12-22 15:01:38,831 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-12-22 15:01:38,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:01:38,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:01:38,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:01:38,907 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:01:38,908 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:01:38,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 1328 states, 997 states have (on average 1.415245737211635) internal successors, (1411), 1017 states have internal predecessors, (1411), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) [2021-12-22 15:01:38,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-22 15:01:38,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:01:38,968 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:01:38,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:01:38,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:01:38,975 INFO L85 PathProgramCache]: Analyzing trace with hash -811675881, now seen corresponding path program 1 times [2021-12-22 15:01:38,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:01:38,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626955790] [2021-12-22 15:01:38,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:01:38,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:01:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:01:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:01:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:01:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:01:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:01:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:01:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:01:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:01:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:01:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 15:01:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:39,738 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-12-22 15:01:39,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:01:39,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626955790] [2021-12-22 15:01:39,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626955790] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:01:39,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:01:39,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:01:39,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328866168] [2021-12-22 15:01:39,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:01:39,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:01:39,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:01:39,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:01:39,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:01:39,783 INFO L87 Difference]: Start difference. First operand has 1328 states, 997 states have (on average 1.415245737211635) internal successors, (1411), 1017 states have internal predecessors, (1411), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:01:41,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:01:44,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:01:47,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:01:50,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:01:53,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:01:54,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:01:54,497 INFO L93 Difference]: Finished difference Result 2702 states and 4048 transitions. [2021-12-22 15:01:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:01:54,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-12-22 15:01:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:01:54,531 INFO L225 Difference]: With dead ends: 2702 [2021-12-22 15:01:54,532 INFO L226 Difference]: Without dead ends: 1366 [2021-12-22 15:01:54,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:01:54,549 INFO L933 BasicCegarLoop]: 1868 mSDtfsCounter, 546 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 657 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:01:54,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 3590 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 1180 Invalid, 4 Unknown, 0 Unchecked, 14.4s Time] [2021-12-22 15:01:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2021-12-22 15:01:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1315. [2021-12-22 15:01:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 990 states have (on average 1.4090909090909092) internal successors, (1395), 1004 states have internal predecessors, (1395), 263 states have call successors, (263), 62 states have call predecessors, (263), 61 states have return successors, (252), 251 states have call predecessors, (252), 252 states have call successors, (252) [2021-12-22 15:01:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1910 transitions. [2021-12-22 15:01:54,729 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1910 transitions. Word has length 119 [2021-12-22 15:01:54,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:01:54,731 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1910 transitions. [2021-12-22 15:01:54,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-22 15:01:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1910 transitions. [2021-12-22 15:01:54,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-22 15:01:54,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:01:54,743 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:01:54,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:01:54,744 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:01:54,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:01:54,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1510126037, now seen corresponding path program 1 times [2021-12-22 15:01:54,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:01:54,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249196781] [2021-12-22 15:01:54,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:01:54,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:01:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:01:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:01:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:01:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:01:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:01:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:01:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:01:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:54,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:55,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:01:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:55,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:55,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:01:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:55,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:55,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 15:01:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:55,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:01:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:01:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-12-22 15:01:55,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:01:55,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249196781] [2021-12-22 15:01:55,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249196781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:01:55,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:01:55,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:01:55,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127491801] [2021-12-22 15:01:55,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:01:55,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:01:55,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:01:55,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:01:55,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:01:55,051 INFO L87 Difference]: Start difference. First operand 1315 states and 1910 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-22 15:01:57,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:01:59,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:01,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:04,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:06,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:09,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:13,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:15,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:15,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:02:15,666 INFO L93 Difference]: Finished difference Result 2761 states and 4011 transitions. [2021-12-22 15:02:15,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:02:15,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2021-12-22 15:02:15,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:02:15,678 INFO L225 Difference]: With dead ends: 2761 [2021-12-22 15:02:15,678 INFO L226 Difference]: Without dead ends: 1472 [2021-12-22 15:02:15,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:02:15,685 INFO L933 BasicCegarLoop]: 1883 mSDtfsCounter, 712 mSDsluCounter, 3292 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 684 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:02:15,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 5175 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 1518 Invalid, 7 Unknown, 0 Unchecked, 20.4s Time] [2021-12-22 15:02:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2021-12-22 15:02:15,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1400. [2021-12-22 15:02:15,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1054 states have (on average 1.4013282732447818) internal successors, (1477), 1069 states have internal predecessors, (1477), 273 states have call successors, (273), 73 states have call predecessors, (273), 72 states have return successors, (262), 260 states have call predecessors, (262), 262 states have call successors, (262) [2021-12-22 15:02:15,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2012 transitions. [2021-12-22 15:02:15,746 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2012 transitions. Word has length 119 [2021-12-22 15:02:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:02:15,750 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 2012 transitions. [2021-12-22 15:02:15,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-22 15:02:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2012 transitions. [2021-12-22 15:02:15,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-22 15:02:15,756 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:02:15,756 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:02:15,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:02:15,757 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:02:15,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:02:15,758 INFO L85 PathProgramCache]: Analyzing trace with hash -623688502, now seen corresponding path program 1 times [2021-12-22 15:02:15,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:02:15,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113339757] [2021-12-22 15:02:15,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:02:15,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:02:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:02:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:02:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 15:02:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 15:02:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:02:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:02:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 15:02:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 15:02:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:15,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 15:02:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:16,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:16,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 15:02:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:16,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:02:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:16,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:02:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:16,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 15:02:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:16,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 15:02:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:16,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 15:02:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:16,056 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-12-22 15:02:16,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:02:16,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113339757] [2021-12-22 15:02:16,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113339757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:02:16,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:02:16,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:02:16,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517763609] [2021-12-22 15:02:16,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:02:16,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:02:16,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:02:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:02:16,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:02:16,060 INFO L87 Difference]: Start difference. First operand 1400 states and 2012 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:02:18,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:20,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:22,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:25,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:29,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:02:29,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:02:29,979 INFO L93 Difference]: Finished difference Result 4119 states and 6003 transitions. [2021-12-22 15:02:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:02:29,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2021-12-22 15:02:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:02:29,997 INFO L225 Difference]: With dead ends: 4119 [2021-12-22 15:02:29,997 INFO L226 Difference]: Without dead ends: 2759 [2021-12-22 15:02:30,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:02:30,005 INFO L933 BasicCegarLoop]: 2114 mSDtfsCounter, 3067 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 1927 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 3105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1927 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:02:30,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3265 Valid, 4666 Invalid, 3105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1927 Valid, 1175 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2021-12-22 15:02:30,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2021-12-22 15:02:30,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2642. [2021-12-22 15:02:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2013 states have (on average 1.4118231495280675) internal successors, (2842), 2031 states have internal predecessors, (2842), 500 states have call successors, (500), 129 states have call predecessors, (500), 128 states have return successors, (489), 487 states have call predecessors, (489), 489 states have call successors, (489) [2021-12-22 15:02:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3831 transitions. [2021-12-22 15:02:30,154 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3831 transitions. Word has length 138 [2021-12-22 15:02:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:02:30,155 INFO L470 AbstractCegarLoop]: Abstraction has 2642 states and 3831 transitions. [2021-12-22 15:02:30,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 15:02:30,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3831 transitions. [2021-12-22 15:02:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-22 15:02:30,159 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:02:30,159 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:02:30,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:02:30,160 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:02:30,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:02:30,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1205946540, now seen corresponding path program 1 times [2021-12-22 15:02:30,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:02:30,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489542478] [2021-12-22 15:02:30,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:02:30,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:02:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:02:30,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:02:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat