./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro --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 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:48:55,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:48:55,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:48:55,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:48:55,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:48:55,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:48:55,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:48:55,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:48:55,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:48:55,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:48:55,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:48:55,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:48:55,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:48:55,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:48:55,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:48:55,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:48:55,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:48:55,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:48:55,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:48:55,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:48:55,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:48:55,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:48:55,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:48:55,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:48:55,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:48:55,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:48:55,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:48:55,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:48:55,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:48:55,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:48:55,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:48:55,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:48:55,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:48:55,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:48:55,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:48:55,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:48:55,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:48:55,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:48:55,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:48:55,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:48:55,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:48:55,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:48:55,540 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:48:55,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:48:55,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:48:55,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:48:55,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:48:55,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:48:55,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:48:55,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:48:55,544 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:48:55,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:48:55,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:48:55,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:48:55,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:48:55,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:48:55,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:48:55,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:48:55,548 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:48:55,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:48:55,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:48:55,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:48:55,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:48:55,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:55,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:48:55,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:48:55,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:48:55,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:48:55,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:48:55,551 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:48:55,551 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:48:55,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:48:55,551 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2022-11-18 20:48:55,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:48:55,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:48:55,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:48:55,896 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:48:55,897 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:48:55,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-18 20:48:56,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/data/a4f764ab6/41dad67e79fc4279bd3d0f18e0372c64/FLAG148a9f30d [2022-11-18 20:48:57,064 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:48:57,065 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-18 20:48:57,112 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/data/a4f764ab6/41dad67e79fc4279bd3d0f18e0372c64/FLAG148a9f30d [2022-11-18 20:48:57,403 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/data/a4f764ab6/41dad67e79fc4279bd3d0f18e0372c64 [2022-11-18 20:48:57,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:48:57,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:48:57,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:57,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:48:57,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:48:57,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:57" (1/1) ... [2022-11-18 20:48:57,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514ac320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:57, skipping insertion in model container [2022-11-18 20:48:57,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:57" (1/1) ... [2022-11-18 20:48:57,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:48:57,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:49:00,621 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-11-18 20:49:00,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:49:00,843 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:49:01,512 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-11-18 20:49:01,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:49:01,675 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:49:01,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01 WrapperNode [2022-11-18 20:49:01,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:49:01,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:49:01,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:49:01,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:49:01,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:01,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,233 INFO L138 Inliner]: procedures = 326, calls = 4517, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 9110 [2022-11-18 20:49:02,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:49:02,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:49:02,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:49:02,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:49:02,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,644 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:49:02,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:49:02,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:49:02,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:49:02,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (1/1) ... [2022-11-18 20:49:02,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:49:02,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:49:02,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:49:02,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb766114-6295-468c-a732-a3ad8052e8f4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:49:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-11-18 20:49:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-11-18 20:49:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-18 20:49:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-18 20:49:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-18 20:49:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-18 20:49:02,826 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-18 20:49:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-18 20:49:02,826 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-11-18 20:49:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-11-18 20:49:02,827 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-11-18 20:49:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-11-18 20:49:02,827 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-18 20:49:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-18 20:49:02,827 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2022-11-18 20:49:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2022-11-18 20:49:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-11-18 20:49:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-11-18 20:49:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-11-18 20:49:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-11-18 20:49:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2022-11-18 20:49:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2022-11-18 20:49:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:49:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:49:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-18 20:49:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-18 20:49:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-11-18 20:49:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-11-18 20:49:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-11-18 20:49:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-11-18 20:49:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-11-18 20:49:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-11-18 20:49:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-11-18 20:49:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-11-18 20:49:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-11-18 20:49:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-11-18 20:49:02,832 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2022-11-18 20:49:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2022-11-18 20:49:02,832 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-11-18 20:49:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-11-18 20:49:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 20:49:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 20:49:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:49:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:49:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-11-18 20:49:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-11-18 20:49:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-11-18 20:49:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-11-18 20:49:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-11-18 20:49:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-11-18 20:49:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 20:49:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 20:49:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 20:49:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 20:49:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-11-18 20:49:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-11-18 20:49:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2022-11-18 20:49:02,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2022-11-18 20:49:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2022-11-18 20:49:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2022-11-18 20:49:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-11-18 20:49:02,840 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-11-18 20:49:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-18 20:49:02,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-18 20:49:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 20:49:02,841 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 20:49:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-11-18 20:49:02,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-11-18 20:49:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2022-11-18 20:49:02,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2022-11-18 20:49:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-11-18 20:49:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-11-18 20:49:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-11-18 20:49:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-11-18 20:49:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-18 20:49:02,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-18 20:49:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:49:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-11-18 20:49:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-11-18 20:49:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 20:49:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 20:49:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:49:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-18 20:49:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-18 20:49:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2022-11-18 20:49:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2022-11-18 20:49:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2022-11-18 20:49:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2022-11-18 20:49:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-11-18 20:49:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-11-18 20:49:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-11-18 20:49:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-11-18 20:49:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 20:49:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 20:49:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-18 20:49:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-18 20:49:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-11-18 20:49:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-11-18 20:49:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2022-11-18 20:49:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2022-11-18 20:49:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:49:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-11-18 20:49:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-11-18 20:49:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2022-11-18 20:49:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2022-11-18 20:49:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:49:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-11-18 20:49:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-11-18 20:49:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-18 20:49:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-18 20:49:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-11-18 20:49:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-11-18 20:49:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2022-11-18 20:49:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2022-11-18 20:49:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-18 20:49:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-18 20:49:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-18 20:49:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-18 20:49:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-18 20:49:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-18 20:49:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 20:49:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 20:49:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 20:49:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 20:49:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-18 20:49:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-18 20:49:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2022-11-18 20:49:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2022-11-18 20:49:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-11-18 20:49:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-11-18 20:49:02,977 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 20:49:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 20:49:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-11-18 20:49:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-11-18 20:49:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2022-11-18 20:49:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2022-11-18 20:49:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-11-18 20:49:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-11-18 20:49:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-11-18 20:49:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-11-18 20:49:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 20:49:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 20:49:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-18 20:49:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-18 20:49:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-18 20:49:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-18 20:49:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-11-18 20:49:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-11-18 20:49:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-11-18 20:49:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-11-18 20:49:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-18 20:49:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-18 20:49:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:49:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-11-18 20:49:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-11-18 20:49:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-11-18 20:49:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-11-18 20:49:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-11-18 20:49:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-11-18 20:49:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-11-18 20:49:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-11-18 20:49:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-11-18 20:49:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-11-18 20:49:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-11-18 20:49:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-11-18 20:49:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-11-18 20:49:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-11-18 20:49:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-11-18 20:49:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-11-18 20:49:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-11-18 20:49:03,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-11-18 20:49:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2022-11-18 20:49:03,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2022-11-18 20:49:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-11-18 20:49:03,001 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-11-18 20:49:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-11-18 20:49:03,001 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-11-18 20:49:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 20:49:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 20:49:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-11-18 20:49:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-11-18 20:49:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-18 20:49:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-18 20:49:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-11-18 20:49:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-11-18 20:49:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:49:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2022-11-18 20:49:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2022-11-18 20:49:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-11-18 20:49:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-11-18 20:49:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-18 20:49:03,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-18 20:49:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:49:03,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:49:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-11-18 20:49:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-11-18 20:49:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:49:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-18 20:49:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-18 20:49:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2022-11-18 20:49:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2022-11-18 20:49:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-11-18 20:49:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-11-18 20:49:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-18 20:49:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-18 20:49:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:49:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-11-18 20:49:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-11-18 20:49:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-18 20:49:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-18 20:49:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 20:49:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 20:49:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:49:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-11-18 20:49:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-11-18 20:49:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-11-18 20:49:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-11-18 20:49:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-11-18 20:49:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-11-18 20:49:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:49:03,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:49:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-11-18 20:49:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-11-18 20:49:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-18 20:49:03,028 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-18 20:49:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2022-11-18 20:49:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2022-11-18 20:49:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:49:03,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:49:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-11-18 20:49:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-11-18 20:49:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-18 20:49:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-18 20:49:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-18 20:49:03,032 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-18 20:49:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-11-18 20:49:03,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-11-18 20:49:03,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-11-18 20:49:03,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-11-18 20:49:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-11-18 20:49:03,033 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-11-18 20:49:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2022-11-18 20:49:03,033 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2022-11-18 20:49:03,034 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-11-18 20:49:03,034 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-11-18 20:49:03,035 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-11-18 20:49:03,036 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-11-18 20:49:03,040 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-11-18 20:49:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-11-18 20:49:03,040 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-11-18 20:49:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-11-18 20:49:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-11-18 20:49:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-11-18 20:49:03,041 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-11-18 20:49:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-11-18 20:49:03,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-11-18 20:49:03,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-11-18 20:49:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 20:49:03,046 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 20:49:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-18 20:49:03,047 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-18 20:49:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-11-18 20:49:03,047 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-11-18 20:49:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 20:49:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 20:49:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-11-18 20:49:03,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-11-18 20:49:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-11-18 20:49:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-11-18 20:49:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-18 20:49:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-18 20:49:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 20:49:03,049 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 20:49:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-11-18 20:49:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-11-18 20:49:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2022-11-18 20:49:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2022-11-18 20:49:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2022-11-18 20:49:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2022-11-18 20:49:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:49:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:49:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:49:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-18 20:49:03,057 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-18 20:49:04,585 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:49:04,590 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:49:17,400 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:49:17,444 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:49:17,444 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:49:17,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:49:17 BoogieIcfgContainer [2022-11-18 20:49:17,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:49:17,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:49:17,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:49:17,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:49:17,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:48:57" (1/3) ... [2022-11-18 20:49:17,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d39b317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:49:17, skipping insertion in model container [2022-11-18 20:49:17,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:49:01" (2/3) ... [2022-11-18 20:49:17,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d39b317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:49:17, skipping insertion in model container [2022-11-18 20:49:17,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:49:17" (3/3) ... [2022-11-18 20:49:17,473 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-18 20:49:17,508 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:49:17,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:49:17,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:49:17,684 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f238b4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:49:17,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:49:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 3424 states, 2442 states have (on average 1.4148239148239148) internal successors, (3455), 2513 states have internal predecessors, (3455), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2022-11-18 20:49:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:49:17,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:17,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:17,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:17,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:17,727 INFO L85 PathProgramCache]: Analyzing trace with hash -559051029, now seen corresponding path program 1 times [2022-11-18 20:49:17,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:17,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167670952] [2022-11-18 20:49:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:17,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:19,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:19,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:19,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167670952] [2022-11-18 20:49:19,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167670952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:19,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:19,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:49:19,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867618801] [2022-11-18 20:49:19,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:19,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:49:19,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:19,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:49:19,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:19,134 INFO L87 Difference]: Start difference. First operand has 3424 states, 2442 states have (on average 1.4148239148239148) internal successors, (3455), 2513 states have internal predecessors, (3455), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:49:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:20,038 INFO L93 Difference]: Finished difference Result 10216 states and 15650 transitions. [2022-11-18 20:49:20,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:49:20,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:49:20,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:20,147 INFO L225 Difference]: With dead ends: 10216 [2022-11-18 20:49:20,148 INFO L226 Difference]: Without dead ends: 6785 [2022-11-18 20:49:20,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:20,203 INFO L413 NwaCegarLoop]: 7174 mSDtfsCounter, 5057 mSDsluCounter, 5082 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5057 SdHoareTripleChecker+Valid, 12256 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:20,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5057 Valid, 12256 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:49:20,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6785 states. [2022-11-18 20:49:20,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6785 to 6771. [2022-11-18 20:49:20,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6771 states, 4822 states have (on average 1.4062629614267939) internal successors, (6781), 4956 states have internal predecessors, (6781), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2022-11-18 20:49:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6771 states to 6771 states and 10131 transitions. [2022-11-18 20:49:20,892 INFO L78 Accepts]: Start accepts. Automaton has 6771 states and 10131 transitions. Word has length 14 [2022-11-18 20:49:20,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:20,893 INFO L495 AbstractCegarLoop]: Abstraction has 6771 states and 10131 transitions. [2022-11-18 20:49:20,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:49:20,894 INFO L276 IsEmpty]: Start isEmpty. Operand 6771 states and 10131 transitions. [2022-11-18 20:49:20,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 20:49:20,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:20,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:20,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:49:20,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:20,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:20,907 INFO L85 PathProgramCache]: Analyzing trace with hash 45174215, now seen corresponding path program 1 times [2022-11-18 20:49:20,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:20,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837586032] [2022-11-18 20:49:20,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:20,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:21,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:21,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837586032] [2022-11-18 20:49:21,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837586032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:21,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:21,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:49:21,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433201634] [2022-11-18 20:49:21,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:21,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:49:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:21,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:49:21,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:21,797 INFO L87 Difference]: Start difference. First operand 6771 states and 10131 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:49:23,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:23,066 INFO L93 Difference]: Finished difference Result 20263 states and 30313 transitions. [2022-11-18 20:49:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:49:23,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 20:49:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:23,217 INFO L225 Difference]: With dead ends: 20263 [2022-11-18 20:49:23,218 INFO L226 Difference]: Without dead ends: 13495 [2022-11-18 20:49:23,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:23,280 INFO L413 NwaCegarLoop]: 6728 mSDtfsCounter, 5049 mSDsluCounter, 5076 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5049 SdHoareTripleChecker+Valid, 11804 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:23,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5049 Valid, 11804 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:49:23,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13495 states. [2022-11-18 20:49:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13495 to 13481. [2022-11-18 20:49:24,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13481 states, 9598 states have (on average 1.4053969576995207) internal successors, (13489), 9862 states have internal predecessors, (13489), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2022-11-18 20:49:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13481 states to 13481 states and 20167 transitions. [2022-11-18 20:49:24,562 INFO L78 Accepts]: Start accepts. Automaton has 13481 states and 20167 transitions. Word has length 16 [2022-11-18 20:49:24,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:24,563 INFO L495 AbstractCegarLoop]: Abstraction has 13481 states and 20167 transitions. [2022-11-18 20:49:24,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:49:24,564 INFO L276 IsEmpty]: Start isEmpty. Operand 13481 states and 20167 transitions. [2022-11-18 20:49:24,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 20:49:24,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:24,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:24,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:49:24,567 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:24,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:24,568 INFO L85 PathProgramCache]: Analyzing trace with hash 432544253, now seen corresponding path program 1 times [2022-11-18 20:49:24,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:24,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599106342] [2022-11-18 20:49:24,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:24,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:25,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:25,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:25,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599106342] [2022-11-18 20:49:25,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599106342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:25,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:25,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:49:25,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20872813] [2022-11-18 20:49:25,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:25,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:49:25,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:25,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:49:25,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:25,098 INFO L87 Difference]: Start difference. First operand 13481 states and 20167 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:49:26,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:26,871 INFO L93 Difference]: Finished difference Result 40291 states and 60278 transitions. [2022-11-18 20:49:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:49:26,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-18 20:49:26,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:27,147 INFO L225 Difference]: With dead ends: 40291 [2022-11-18 20:49:27,148 INFO L226 Difference]: Without dead ends: 26813 [2022-11-18 20:49:27,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:27,262 INFO L413 NwaCegarLoop]: 7051 mSDtfsCounter, 5047 mSDsluCounter, 5076 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5047 SdHoareTripleChecker+Valid, 12127 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:27,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5047 Valid, 12127 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:49:27,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26813 states. [2022-11-18 20:49:29,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26813 to 26799. [2022-11-18 20:49:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26799 states, 19071 states have (on average 1.404855539824865) internal successors, (26792), 19594 states have internal predecessors, (26792), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-11-18 20:49:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26799 states to 26799 states and 40094 transitions. [2022-11-18 20:49:29,610 INFO L78 Accepts]: Start accepts. Automaton has 26799 states and 40094 transitions. Word has length 18 [2022-11-18 20:49:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:29,611 INFO L495 AbstractCegarLoop]: Abstraction has 26799 states and 40094 transitions. [2022-11-18 20:49:29,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:49:29,612 INFO L276 IsEmpty]: Start isEmpty. Operand 26799 states and 40094 transitions. [2022-11-18 20:49:29,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:49:29,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:29,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:29,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:49:29,620 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:29,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:29,622 INFO L85 PathProgramCache]: Analyzing trace with hash -83154553, now seen corresponding path program 1 times [2022-11-18 20:49:29,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:29,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063126087] [2022-11-18 20:49:29,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:29,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:49:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:30,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:30,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063126087] [2022-11-18 20:49:30,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063126087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:30,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:30,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:49:30,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744318836] [2022-11-18 20:49:30,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:30,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:49:30,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:30,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:49:30,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:49:30,733 INFO L87 Difference]: Start difference. First operand 26799 states and 40094 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:32,442 INFO L93 Difference]: Finished difference Result 53630 states and 80238 transitions. [2022-11-18 20:49:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:49:32,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-11-18 20:49:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:32,736 INFO L225 Difference]: With dead ends: 53630 [2022-11-18 20:49:32,736 INFO L226 Difference]: Without dead ends: 26834 [2022-11-18 20:49:32,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:49:32,936 INFO L413 NwaCegarLoop]: 5091 mSDtfsCounter, 22 mSDsluCounter, 10177 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 15268 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:32,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 15268 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:49:32,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26834 states. [2022-11-18 20:49:34,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26834 to 26802. [2022-11-18 20:49:34,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26802 states, 19074 states have (on average 1.4047918632693719) internal successors, (26795), 19597 states have internal predecessors, (26795), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-11-18 20:49:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26802 states to 26802 states and 40097 transitions. [2022-11-18 20:49:35,176 INFO L78 Accepts]: Start accepts. Automaton has 26802 states and 40097 transitions. Word has length 29 [2022-11-18 20:49:35,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:35,176 INFO L495 AbstractCegarLoop]: Abstraction has 26802 states and 40097 transitions. [2022-11-18 20:49:35,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 26802 states and 40097 transitions. [2022-11-18 20:49:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:49:35,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:35,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:35,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:49:35,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:35,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:35,184 INFO L85 PathProgramCache]: Analyzing trace with hash -25896251, now seen corresponding path program 1 times [2022-11-18 20:49:35,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:35,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775871709] [2022-11-18 20:49:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:35,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:35,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:49:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:35,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:35,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775871709] [2022-11-18 20:49:35,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775871709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:35,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:35,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:49:35,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754244891] [2022-11-18 20:49:35,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:35,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:49:35,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:35,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:49:35,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:35,715 INFO L87 Difference]: Start difference. First operand 26802 states and 40097 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:37,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:37,226 INFO L93 Difference]: Finished difference Result 26804 states and 40098 transitions. [2022-11-18 20:49:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:49:37,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-11-18 20:49:37,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:37,484 INFO L225 Difference]: With dead ends: 26804 [2022-11-18 20:49:37,485 INFO L226 Difference]: Without dead ends: 26801 [2022-11-18 20:49:37,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:37,514 INFO L413 NwaCegarLoop]: 5091 mSDtfsCounter, 5069 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 5091 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:37,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5069 Valid, 5091 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:49:37,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26801 states. [2022-11-18 20:49:39,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26801 to 26801. [2022-11-18 20:49:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26801 states, 19074 states have (on average 1.4047394358813043) internal successors, (26794), 19596 states have internal predecessors, (26794), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-11-18 20:49:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26801 states to 26801 states and 40095 transitions. [2022-11-18 20:49:39,683 INFO L78 Accepts]: Start accepts. Automaton has 26801 states and 40095 transitions. Word has length 29 [2022-11-18 20:49:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:39,684 INFO L495 AbstractCegarLoop]: Abstraction has 26801 states and 40095 transitions. [2022-11-18 20:49:39,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 26801 states and 40095 transitions. [2022-11-18 20:49:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 20:49:39,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:39,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:39,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:49:39,690 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:39,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:39,690 INFO L85 PathProgramCache]: Analyzing trace with hash -804260206, now seen corresponding path program 1 times [2022-11-18 20:49:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:39,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820755693] [2022-11-18 20:49:39,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:39,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:49:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:40,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:40,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820755693] [2022-11-18 20:49:40,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820755693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:40,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:40,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:49:40,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570133640] [2022-11-18 20:49:40,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:40,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:49:40,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:40,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:49:40,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:40,213 INFO L87 Difference]: Start difference. First operand 26801 states and 40095 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:41,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:41,869 INFO L93 Difference]: Finished difference Result 26803 states and 40096 transitions. [2022-11-18 20:49:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:49:41,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-11-18 20:49:41,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:42,128 INFO L225 Difference]: With dead ends: 26803 [2022-11-18 20:49:42,129 INFO L226 Difference]: Without dead ends: 26800 [2022-11-18 20:49:42,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:42,157 INFO L413 NwaCegarLoop]: 5089 mSDtfsCounter, 5066 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:42,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5066 Valid, 5089 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:49:42,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26800 states. [2022-11-18 20:49:44,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26800 to 26800. [2022-11-18 20:49:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26800 states, 19074 states have (on average 1.4046870084932368) internal successors, (26793), 19595 states have internal predecessors, (26793), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-11-18 20:49:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26800 states to 26800 states and 40093 transitions. [2022-11-18 20:49:44,297 INFO L78 Accepts]: Start accepts. Automaton has 26800 states and 40093 transitions. Word has length 30 [2022-11-18 20:49:44,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:44,298 INFO L495 AbstractCegarLoop]: Abstraction has 26800 states and 40093 transitions. [2022-11-18 20:49:44,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 26800 states and 40093 transitions. [2022-11-18 20:49:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 20:49:44,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:44,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:44,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:49:44,306 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:44,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:44,306 INFO L85 PathProgramCache]: Analyzing trace with hash 836265832, now seen corresponding path program 1 times [2022-11-18 20:49:44,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:44,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811056019] [2022-11-18 20:49:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:44,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:44,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:49:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:45,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:45,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811056019] [2022-11-18 20:49:45,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811056019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:45,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:45,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:49:45,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513750620] [2022-11-18 20:49:45,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:45,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:49:45,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:45,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:49:45,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:45,021 INFO L87 Difference]: Start difference. First operand 26800 states and 40093 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:47,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:47,772 INFO L93 Difference]: Finished difference Result 41651 states and 61529 transitions. [2022-11-18 20:49:47,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:49:47,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-11-18 20:49:47,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:48,033 INFO L225 Difference]: With dead ends: 41651 [2022-11-18 20:49:48,033 INFO L226 Difference]: Without dead ends: 41647 [2022-11-18 20:49:48,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:48,061 INFO L413 NwaCegarLoop]: 5640 mSDtfsCounter, 5029 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5029 SdHoareTripleChecker+Valid, 8731 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:48,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5029 Valid, 8731 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:49:48,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41647 states. [2022-11-18 20:49:50,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41647 to 41645. [2022-11-18 20:49:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41645 states, 29511 states have (on average 1.3853478363999865) internal successors, (40883), 30289 states have internal predecessors, (40883), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2022-11-18 20:49:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41645 states to 41645 states and 61517 transitions. [2022-11-18 20:49:50,918 INFO L78 Accepts]: Start accepts. Automaton has 41645 states and 61517 transitions. Word has length 31 [2022-11-18 20:49:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:50,919 INFO L495 AbstractCegarLoop]: Abstraction has 41645 states and 61517 transitions. [2022-11-18 20:49:50,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 41645 states and 61517 transitions. [2022-11-18 20:49:50,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:49:50,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:50,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:50,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:49:50,926 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:50,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:50,927 INFO L85 PathProgramCache]: Analyzing trace with hash 152970325, now seen corresponding path program 1 times [2022-11-18 20:49:50,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:50,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716622690] [2022-11-18 20:49:50,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:50,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:49:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:51,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:51,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:51,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716622690] [2022-11-18 20:49:51,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716622690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:51,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:51,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:49:51,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781836359] [2022-11-18 20:49:51,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:51,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:49:51,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:51,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:49:51,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:51,509 INFO L87 Difference]: Start difference. First operand 41645 states and 61517 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:53,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:49:53,904 INFO L93 Difference]: Finished difference Result 41647 states and 61518 transitions. [2022-11-18 20:49:53,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:49:53,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-18 20:49:53,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:49:54,143 INFO L225 Difference]: With dead ends: 41647 [2022-11-18 20:49:54,143 INFO L226 Difference]: Without dead ends: 41555 [2022-11-18 20:49:54,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:49:54,189 INFO L413 NwaCegarLoop]: 5084 mSDtfsCounter, 5058 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5058 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:49:54,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5058 Valid, 5084 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:49:54,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41555 states. [2022-11-18 20:49:57,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41555 to 41555. [2022-11-18 20:49:57,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41555 states, 29462 states have (on average 1.3851741225986016) internal successors, (40810), 30232 states have internal predecessors, (40810), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2022-11-18 20:49:57,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41555 states to 41555 states and 61379 transitions. [2022-11-18 20:49:57,322 INFO L78 Accepts]: Start accepts. Automaton has 41555 states and 61379 transitions. Word has length 32 [2022-11-18 20:49:57,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:49:57,323 INFO L495 AbstractCegarLoop]: Abstraction has 41555 states and 61379 transitions. [2022-11-18 20:49:57,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:49:57,323 INFO L276 IsEmpty]: Start isEmpty. Operand 41555 states and 61379 transitions. [2022-11-18 20:49:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 20:49:57,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:49:57,346 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:49:57,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:49:57,347 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:49:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:49:57,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1744424098, now seen corresponding path program 1 times [2022-11-18 20:49:57,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:49:57,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508450988] [2022-11-18 20:49:57,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:49:57,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:49:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:57,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:49:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 20:49:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 20:49:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:49:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:49:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:58,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:49:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:58,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 20:49:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:49:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:49:58,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:49:58,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508450988] [2022-11-18 20:49:58,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508450988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:49:58,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:49:58,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:49:58,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508008524] [2022-11-18 20:49:58,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:49:58,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:49:58,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:49:58,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:49:58,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:49:58,081 INFO L87 Difference]: Start difference. First operand 41555 states and 61379 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:50:15,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:15,093 INFO L93 Difference]: Finished difference Result 112523 states and 167767 transitions. [2022-11-18 20:50:15,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:50:15,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2022-11-18 20:50:15,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:15,553 INFO L225 Difference]: With dead ends: 112523 [2022-11-18 20:50:15,553 INFO L226 Difference]: Without dead ends: 70971 [2022-11-18 20:50:15,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:50:15,810 INFO L413 NwaCegarLoop]: 8642 mSDtfsCounter, 6133 mSDsluCounter, 9037 mSDsCounter, 0 mSdLazyCounter, 4517 mSolverCounterSat, 1766 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6956 SdHoareTripleChecker+Valid, 17679 SdHoareTripleChecker+Invalid, 6283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1766 IncrementalHoareTripleChecker+Valid, 4517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:15,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6956 Valid, 17679 Invalid, 6283 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1766 Valid, 4517 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-11-18 20:50:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70971 states. [2022-11-18 20:50:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70971 to 61236. [2022-11-18 20:50:20,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61236 states, 43428 states have (on average 1.3857419176568113) internal successors, (60180), 44564 states have internal predecessors, (60180), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2022-11-18 20:50:20,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61236 states to 61236 states and 90485 transitions. [2022-11-18 20:50:20,663 INFO L78 Accepts]: Start accepts. Automaton has 61236 states and 90485 transitions. Word has length 77 [2022-11-18 20:50:20,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:20,668 INFO L495 AbstractCegarLoop]: Abstraction has 61236 states and 90485 transitions. [2022-11-18 20:50:20,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:50:20,669 INFO L276 IsEmpty]: Start isEmpty. Operand 61236 states and 90485 transitions. [2022-11-18 20:50:20,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-18 20:50:20,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:20,698 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2022-11-18 20:50:20,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:50:20,698 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:20,699 INFO L85 PathProgramCache]: Analyzing trace with hash 364850690, now seen corresponding path program 1 times [2022-11-18 20:50:20,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:20,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777863355] [2022-11-18 20:50:20,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:20,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:21,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:50:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:21,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 20:50:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:21,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 20:50:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 20:50:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:21,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:50:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:50:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:50:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:21,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:21,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777863355] [2022-11-18 20:50:21,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777863355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:21,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:21,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:50:21,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714818686] [2022-11-18 20:50:21,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:21,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:50:21,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:21,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:50:21,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:50:21,320 INFO L87 Difference]: Start difference. First operand 61236 states and 90485 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:50:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:36,554 INFO L93 Difference]: Finished difference Result 165164 states and 246383 transitions. [2022-11-18 20:50:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:50:36,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2022-11-18 20:50:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:37,193 INFO L225 Difference]: With dead ends: 165164 [2022-11-18 20:50:37,193 INFO L226 Difference]: Without dead ends: 103931 [2022-11-18 20:50:37,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:50:37,811 INFO L413 NwaCegarLoop]: 8779 mSDtfsCounter, 6121 mSDsluCounter, 9162 mSDsCounter, 0 mSdLazyCounter, 4521 mSolverCounterSat, 1738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6941 SdHoareTripleChecker+Valid, 17941 SdHoareTripleChecker+Invalid, 6259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1738 IncrementalHoareTripleChecker+Valid, 4521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:37,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6941 Valid, 17941 Invalid, 6259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1738 Valid, 4521 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-11-18 20:50:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103931 states.