./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 04:21:24,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:21:24,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:21:24,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:21:24,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:21:24,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:21:24,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:21:24,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:21:24,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:21:24,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:21:24,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:21:24,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:21:24,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:21:24,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:21:24,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:21:24,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:21:24,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:21:24,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:21:25,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:21:25,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:21:25,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:21:25,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:21:25,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:21:25,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:21:25,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:21:25,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:21:25,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:21:25,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:21:25,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:21:25,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:21:25,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:21:25,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:21:25,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:21:25,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:21:25,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:21:25,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:21:25,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:21:25,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:21:25,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:21:25,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:21:25,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:21:25,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:21:25,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:21:25,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:21:25,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:21:25,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:21:25,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:21:25,063 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:21:25,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:21:25,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:21:25,064 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:21:25,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:21:25,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:21:25,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:21:25,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:21:25,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:21:25,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:21:25,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:21:25,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:21:25,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:21:25,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:21:25,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:21:25,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:21:25,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:21:25,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:21:25,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:21:25,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:21:25,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:21:25,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:21:25,068 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:21:25,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:21:25,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:21:25,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:21:25,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2021-12-16 04:21:25,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:21:25,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:21:25,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:21:25,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:21:25,375 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:21:25,377 INFO L432 ainManager$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 [2021-12-16 04:21:25,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add6d2997/981acbd37c914284a5bfb97620e88ac2/FLAG79bddba4d [2021-12-16 04:21:26,211 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:21:26,212 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 [2021-12-16 04:21:26,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add6d2997/981acbd37c914284a5bfb97620e88ac2/FLAG79bddba4d [2021-12-16 04:21:26,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/add6d2997/981acbd37c914284a5bfb97620e88ac2 [2021-12-16 04:21:26,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:21:26,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:21:26,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:21:26,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:21:26,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:21:26,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:21:26" (1/1) ... [2021-12-16 04:21:26,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3d95ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:26, skipping insertion in model container [2021-12-16 04:21:26,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:21:26" (1/1) ... [2021-12-16 04:21:26,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:21:26,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:21:28,424 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] [2021-12-16 04:21:28,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:21:28,692 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:21:28,997 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] [2021-12-16 04:21:29,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:21:29,100 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:21:29,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29 WrapperNode [2021-12-16 04:21:29,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:21:29,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:21:29,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:21:29,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:21:29,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,394 INFO L137 Inliner]: procedures = 258, calls = 2260, calls flagged for inlining = 96, calls inlined = 93, statements flattened = 5893 [2021-12-16 04:21:29,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:21:29,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:21:29,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:21:29,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:21:29,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:21:29,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:21:29,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:21:29,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:21:29,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (1/1) ... [2021-12-16 04:21:29,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:21:29,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:21:29,628 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) [2021-12-16 04:21:29,657 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 [2021-12-16 04:21:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:21:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:21:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:21:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:21:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-12-16 04:21:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2021-12-16 04:21:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-16 04:21:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-16 04:21:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpctl_mutex [2021-12-16 04:21:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpctl_mutex [2021-12-16 04:21:29,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:21:29,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:21:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_GetIocState [2021-12-16 04:21:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_GetIocState [2021-12-16 04:21:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-16 04:21:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-16 04:21:29,671 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2021-12-16 04:21:29,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2021-12-16 04:21:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 04:21:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 04:21:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:21:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:21:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_syscall_down [2021-12-16 04:21:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_syscall_down [2021-12-16 04:21:29,672 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_device_driver_deregister [2021-12-16 04:21:29,672 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_device_driver_deregister [2021-12-16 04:21:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 04:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 04:21:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_remove [2021-12-16 04:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_remove [2021-12-16 04:21:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:21:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:21:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:21:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:21:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame [2021-12-16 04:21:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame [2021-12-16 04:21:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 04:21:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 04:21:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 04:21:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 04:21:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 04:21:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 04:21:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure __mptctl_ioctl [2021-12-16 04:21:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __mptctl_ioctl [2021-12-16 04:21:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_mpt_command [2021-12-16 04:21:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_mpt_command [2021-12-16 04:21:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_fw_download [2021-12-16 04:21:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_fw_download [2021-12-16 04:21:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:21:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:21:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2021-12-16 04:21:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2021-12-16 04:21:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame_hi_pri [2021-12-16 04:21:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame_hi_pri [2021-12-16 04:21:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-16 04:21:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-16 04:21:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:21:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:21:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_fw_memory [2021-12-16 04:21:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_fw_memory [2021-12-16 04:21:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_taskmgmt [2021-12-16 04:21:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_taskmgmt [2021-12-16 04:21:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 04:21:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 04:21:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:21:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:21:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_clear_taskmgmt_in_progress_flag [2021-12-16 04:21:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_clear_taskmgmt_in_progress_flag [2021-12-16 04:21:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_timeout_expired [2021-12-16 04:21:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_timeout_expired [2021-12-16 04:21:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-16 04:21:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-16 04:21:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 04:21:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 04:21:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 04:21:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 04:21:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpctl_mutex [2021-12-16 04:21:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpctl_mutex [2021-12-16 04:21:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_fasync [2021-12-16 04:21:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_fasync [2021-12-16 04:21:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 04:21:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 04:21:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-12-16 04:21:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-12-16 04:21:29,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:21:29,684 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_set_taskmgmt_in_progress_flag [2021-12-16 04:21:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_set_taskmgmt_in_progress_flag [2021-12-16 04:21:29,684 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 04:21:29,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 04:21:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_verify_adapter [2021-12-16 04:21:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_verify_adapter [2021-12-16 04:21:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:21:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:21:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 04:21:29,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 04:21:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:21:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-16 04:21:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-16 04:21:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_deregister [2021-12-16 04:21:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_deregister [2021-12-16 04:21:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_sgl [2021-12-16 04:21:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_sgl [2021-12-16 04:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:21:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-16 04:21:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-16 04:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:21:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-16 04:21:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-16 04:21:29,689 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-16 04:21:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-16 04:21:29,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:21:29,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 04:21:29,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 04:21:29,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:21:29,690 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_get_msg_frame [2021-12-16 04:21:29,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_get_msg_frame [2021-12-16 04:21:29,690 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-16 04:21:29,691 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-16 04:21:29,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2021-12-16 04:21:29,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2021-12-16 04:21:29,692 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_send_handshake_request [2021-12-16 04:21:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_send_handshake_request [2021-12-16 04:21:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_register [2021-12-16 04:21:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_register [2021-12-16 04:21:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2021-12-16 04:21:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2021-12-16 04:21:29,693 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2021-12-16 04:21:29,693 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2021-12-16 04:21:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:21:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-16 04:21:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:21:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:21:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_config [2021-12-16 04:21:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_config [2021-12-16 04:21:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_msg_frame [2021-12-16 04:21:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_msg_frame [2021-12-16 04:21:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-16 04:21:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-16 04:21:30,369 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:21:30,372 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:21:33,514 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:21:43,251 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:21:43,272 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:21:43,273 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:21:43,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:21:43 BoogieIcfgContainer [2021-12-16 04:21:43,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:21:43,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:21:43,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:21:43,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:21:43,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:21:26" (1/3) ... [2021-12-16 04:21:43,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423a7298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:21:43, skipping insertion in model container [2021-12-16 04:21:43,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:21:29" (2/3) ... [2021-12-16 04:21:43,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423a7298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:21:43, skipping insertion in model container [2021-12-16 04:21:43,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:21:43" (3/3) ... [2021-12-16 04:21:43,286 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-12-16 04:21:43,291 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:21:43,291 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:21:43,346 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:21:43,353 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 [2021-12-16 04:21:43,354 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:21:43,397 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) [2021-12-16 04:21:43,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-16 04:21:43,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:21:43,407 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] [2021-12-16 04:21:43,407 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:21:43,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:21:43,412 INFO L85 PathProgramCache]: Analyzing trace with hash -811675881, now seen corresponding path program 1 times [2021-12-16 04:21:43,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:21:43,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539200387] [2021-12-16 04:21:43,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:21:43,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:21:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:43,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:21:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:21:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 04:21:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:43,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 04:21:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:43,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-16 04:21:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 04:21:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 04:21:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:21:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 04:21:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:21:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:21:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:21:44,183 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-12-16 04:21:44,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:21:44,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539200387] [2021-12-16 04:21:44,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539200387] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:21:44,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:21:44,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:21:44,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321440186] [2021-12-16 04:21:44,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:21:44,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:21:44,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:21:44,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:21:44,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:21:44,219 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) [2021-12-16 04:21:45,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:21:47,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:21:49,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:21:52,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:21:54,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:21:57,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:22:00,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:22:00,542 INFO L93 Difference]: Finished difference Result 2702 states and 4048 transitions. [2021-12-16 04:22:00,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 04:22:00,550 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 [2021-12-16 04:22:00,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:22:00,584 INFO L225 Difference]: With dead ends: 2702 [2021-12-16 04:22:00,584 INFO L226 Difference]: Without dead ends: 1366 [2021-12-16 04:22:00,598 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 [2021-12-16 04:22:00,603 INFO L933 BasicCegarLoop]: 1871 mSDtfsCounter, 546 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 657 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 3597 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:22:00,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 3597 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 1184 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2021-12-16 04:22:00,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2021-12-16 04:22:00,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1315. [2021-12-16 04:22:00,745 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) [2021-12-16 04:22:00,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1910 transitions. [2021-12-16 04:22:00,758 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1910 transitions. Word has length 119 [2021-12-16 04:22:00,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:22:00,760 INFO L470 AbstractCegarLoop]: Abstraction has 1315 states and 1910 transitions. [2021-12-16 04:22:00,761 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) [2021-12-16 04:22:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1910 transitions. [2021-12-16 04:22:00,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-16 04:22:00,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:22:00,769 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] [2021-12-16 04:22:00,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:22:00,772 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:22:00,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:22:00,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1510126037, now seen corresponding path program 1 times [2021-12-16 04:22:00,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:22:00,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938385348] [2021-12-16 04:22:00,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:22:00,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:22:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:22:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:22:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 04:22:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 04:22:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-16 04:22:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 04:22:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 04:22:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:22:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 04:22:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:22:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2021-12-16 04:22:01,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:22:01,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938385348] [2021-12-16 04:22:01,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938385348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:22:01,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:22:01,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:22:01,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715531597] [2021-12-16 04:22:01,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:22:01,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:22:01,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:22:01,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:22:01,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:22:01,187 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) [2021-12-16 04:22:04,760 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 [] [2021-12-16 04:22:07,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:22:10,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:22:12,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:22:14,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:22:20,573 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 [] [2021-12-16 04:22:21,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:22:21,880 INFO L93 Difference]: Finished difference Result 2761 states and 4011 transitions. [2021-12-16 04:22:21,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:22:21,882 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 [2021-12-16 04:22:21,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:22:21,891 INFO L225 Difference]: With dead ends: 2761 [2021-12-16 04:22:21,892 INFO L226 Difference]: Without dead ends: 1472 [2021-12-16 04:22:21,898 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 [2021-12-16 04:22:21,900 INFO L933 BasicCegarLoop]: 1885 mSDtfsCounter, 706 mSDsluCounter, 3292 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 683 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 5177 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:22:21,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 5177 Invalid, 2214 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [683 Valid, 1525 Invalid, 6 Unknown, 0 Unchecked, 20.4s Time] [2021-12-16 04:22:21,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2021-12-16 04:22:21,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1400. [2021-12-16 04:22:21,968 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) [2021-12-16 04:22:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2012 transitions. [2021-12-16 04:22:21,978 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2012 transitions. Word has length 119 [2021-12-16 04:22:21,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:22:21,983 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 2012 transitions. [2021-12-16 04:22:21,983 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) [2021-12-16 04:22:21,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2012 transitions. [2021-12-16 04:22:21,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-16 04:22:21,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:22:21,988 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] [2021-12-16 04:22:21,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:22:21,989 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:22:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:22:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash -623688502, now seen corresponding path program 1 times [2021-12-16 04:22:21,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:22:21,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537919357] [2021-12-16 04:22:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:22:21,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:22:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:22:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:22:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-16 04:22:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 04:22:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-16 04:22:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 04:22:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-16 04:22:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-16 04:22:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 04:22:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:22:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:22:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:22:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 04:22:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-16 04:22:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 04:22:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:22:22,333 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-12-16 04:22:22,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:22:22,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537919357] [2021-12-16 04:22:22,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537919357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:22:22,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:22:22,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:22:22,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783911932] [2021-12-16 04:22:22,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:22:22,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:22:22,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:22:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:22:22,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:22:22,337 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) [2021-12-16 04:22:25,849 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 [] [2021-12-16 04:22:28,960 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 []