./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/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_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 20:18:54,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:18:54,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:18:54,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:18:54,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:18:54,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:18:54,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:18:54,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:18:54,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:18:54,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:18:54,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:18:54,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:18:54,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:18:54,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:18:54,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:18:54,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:18:54,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:18:54,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:18:54,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:18:54,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:18:54,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:18:54,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:18:54,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:18:54,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:18:54,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:18:54,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:18:54,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:18:54,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:18:54,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:18:54,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:18:54,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:18:54,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:18:54,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:18:54,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:18:54,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:18:54,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:18:54,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:18:54,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:18:54,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:18:54,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:18:54,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:18:54,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:18:54,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:18:54,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:18:54,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:18:54,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:18:54,752 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:18:54,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:18:54,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:18:54,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:18:54,754 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:18:54,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:18:54,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:18:54,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:18:54,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:18:54,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:18:54,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:18:54,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:18:54,756 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:18:54,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:18:54,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:18:54,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:18:54,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:18:54,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:18:54,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:18:54,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:18:54,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:18:54,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:18:54,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:18:54,759 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:18:54,760 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:18:54,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:18:54,760 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_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2022-11-02 20:18:55,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:18:55,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:18:55,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:18:55,236 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:18:55,237 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:18:55,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-02 20:18:55,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/data/2c6c94814/901bd12dff23402dbc01d1f307d1b291/FLAG390617225 [2022-11-02 20:18:56,632 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:18:56,634 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-02 20:18:56,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/data/2c6c94814/901bd12dff23402dbc01d1f307d1b291/FLAG390617225 [2022-11-02 20:18:56,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/data/2c6c94814/901bd12dff23402dbc01d1f307d1b291 [2022-11-02 20:18:56,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:18:56,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:18:56,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:18:56,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:18:56,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:18:56,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:18:56" (1/1) ... [2022-11-02 20:18:56,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed9c0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:18:56, skipping insertion in model container [2022-11-02 20:18:56,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:18:56" (1/1) ... [2022-11-02 20:18:56,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:18:57,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:19:00,358 WARN L230 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_4e278438-48df-4933-a452-01f3269cdbf4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-11-02 20:19:00,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:19:00,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:19:01,238 WARN L230 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_4e278438-48df-4933-a452-01f3269cdbf4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-11-02 20:19:01,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:19:01,376 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:19:01,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01 WrapperNode [2022-11-02 20:19:01,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:19:01,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:19:01,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:19:01,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:19:01,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:01,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:01,939 INFO L138 Inliner]: procedures = 326, calls = 4469, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 8803 [2022-11-02 20:19:01,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:19:01,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:19:01,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:19:01,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:19:01,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:01,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:02,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:02,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:02,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:02,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:02,460 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:02,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:02,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:19:02,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:19:02,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:19:02,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:19:02,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (1/1) ... [2022-11-02 20:19:02,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:19:02,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:19:02,594 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:19:02,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e278438-48df-4933-a452-01f3269cdbf4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:19:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-11-02 20:19:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-11-02 20:19:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-02 20:19:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-02 20:19:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-02 20:19:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-02 20:19:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-02 20:19:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-02 20:19:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-11-02 20:19:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-11-02 20:19:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-11-02 20:19:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-11-02 20:19:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-02 20:19:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-02 20:19:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2022-11-02 20:19:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2022-11-02 20:19:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-11-02 20:19:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-11-02 20:19:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-11-02 20:19:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-11-02 20:19:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2022-11-02 20:19:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2022-11-02 20:19:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:19:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:19:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-02 20:19:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-02 20:19:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-11-02 20:19:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-11-02 20:19:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-11-02 20:19:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-11-02 20:19:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-11-02 20:19:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-11-02 20:19:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-11-02 20:19:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-11-02 20:19:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-11-02 20:19:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-11-02 20:19:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2022-11-02 20:19:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2022-11-02 20:19:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-11-02 20:19:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-11-02 20:19:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 20:19:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 20:19:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:19:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:19:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-11-02 20:19:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-11-02 20:19:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-11-02 20:19:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-11-02 20:19:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-11-02 20:19:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-11-02 20:19:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-02 20:19:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-02 20:19:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:19:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:19:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-11-02 20:19:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-11-02 20:19:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2022-11-02 20:19:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2022-11-02 20:19:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2022-11-02 20:19:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2022-11-02 20:19:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-11-02 20:19:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-11-02 20:19:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-02 20:19:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-02 20:19:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:19:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:19:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-11-02 20:19:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-11-02 20:19:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2022-11-02 20:19:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2022-11-02 20:19:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-11-02 20:19:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-11-02 20:19:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-11-02 20:19:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-11-02 20:19:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-02 20:19:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-02 20:19:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:19:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-11-02 20:19:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-11-02 20:19:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:19:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:19:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:19:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-02 20:19:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-02 20:19:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2022-11-02 20:19:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2022-11-02 20:19:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2022-11-02 20:19:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2022-11-02 20:19:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-11-02 20:19:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-11-02 20:19:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-11-02 20:19:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-11-02 20:19:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:19:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:19:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-02 20:19:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-02 20:19:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-11-02 20:19:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-11-02 20:19:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2022-11-02 20:19:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2022-11-02 20:19:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:19:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-11-02 20:19:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-11-02 20:19:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2022-11-02 20:19:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2022-11-02 20:19:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:19:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-11-02 20:19:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-11-02 20:19:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-02 20:19:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-02 20:19:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-11-02 20:19:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-11-02 20:19:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2022-11-02 20:19:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2022-11-02 20:19:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-02 20:19:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-02 20:19:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-02 20:19:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-02 20:19:02,676 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-02 20:19:02,679 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-02 20:19:02,679 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 20:19:02,680 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 20:19:02,680 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:19:02,681 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:19:02,683 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-02 20:19:02,683 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-02 20:19:02,683 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2022-11-02 20:19:02,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2022-11-02 20:19:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-11-02 20:19:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-11-02 20:19:02,688 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-02 20:19:02,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-02 20:19:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-11-02 20:19:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-11-02 20:19:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2022-11-02 20:19:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2022-11-02 20:19:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-11-02 20:19:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-11-02 20:19:02,689 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-11-02 20:19:02,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-11-02 20:19:02,690 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 20:19:02,690 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 20:19:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-02 20:19:02,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-02 20:19:02,786 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-02 20:19:02,787 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-02 20:19:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-11-02 20:19:02,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-11-02 20:19:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-11-02 20:19:02,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-11-02 20:19:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-02 20:19:02,787 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-02 20:19:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:19:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-11-02 20:19:02,788 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-11-02 20:19:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-11-02 20:19:02,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-11-02 20:19:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-11-02 20:19:02,788 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-11-02 20:19:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-11-02 20:19:02,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-11-02 20:19:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-11-02 20:19:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-11-02 20:19:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-11-02 20:19:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-11-02 20:19:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-11-02 20:19:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-11-02 20:19:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-11-02 20:19:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-11-02 20:19:02,790 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-11-02 20:19:02,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-11-02 20:19:02,790 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2022-11-02 20:19:02,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2022-11-02 20:19:02,790 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-11-02 20:19:02,790 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-11-02 20:19:02,790 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-11-02 20:19:02,791 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-11-02 20:19:02,791 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:19:02,791 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:19:02,791 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-11-02 20:19:02,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-11-02 20:19:02,791 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-02 20:19:02,791 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-02 20:19:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-11-02 20:19:02,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-11-02 20:19:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:19:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2022-11-02 20:19:02,792 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2022-11-02 20:19:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-11-02 20:19:02,792 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-11-02 20:19:02,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-02 20:19:02,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-02 20:19:02,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:19:02,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:19:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-11-02 20:19:02,795 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-11-02 20:19:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:19:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-02 20:19:02,795 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-02 20:19:02,795 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2022-11-02 20:19:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2022-11-02 20:19:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-11-02 20:19:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-11-02 20:19:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-02 20:19:02,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-02 20:19:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:19:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-11-02 20:19:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-11-02 20:19:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-02 20:19:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-02 20:19:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 20:19:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 20:19:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:19:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-11-02 20:19:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-11-02 20:19:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-11-02 20:19:02,798 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-11-02 20:19:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-11-02 20:19:02,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-11-02 20:19:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:19:02,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:19:02,798 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-11-02 20:19:02,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-11-02 20:19:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-02 20:19:02,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-02 20:19:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2022-11-02 20:19:02,799 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2022-11-02 20:19:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-02 20:19:02,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-02 20:19:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-11-02 20:19:02,799 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-11-02 20:19:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-02 20:19:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-02 20:19:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-02 20:19:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-02 20:19:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-11-02 20:19:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-11-02 20:19:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-11-02 20:19:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-11-02 20:19:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-11-02 20:19:02,801 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-11-02 20:19:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2022-11-02 20:19:02,801 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2022-11-02 20:19:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-11-02 20:19:02,801 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-11-02 20:19:02,809 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-11-02 20:19:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-11-02 20:19:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-11-02 20:19:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-11-02 20:19:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-11-02 20:19:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-11-02 20:19:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-11-02 20:19:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-11-02 20:19:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-11-02 20:19:02,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-11-02 20:19:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-11-02 20:19:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-11-02 20:19:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 20:19:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 20:19:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-02 20:19:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-02 20:19:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-11-02 20:19:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-11-02 20:19:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-02 20:19:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-02 20:19:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-11-02 20:19:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-11-02 20:19:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-11-02 20:19:02,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-11-02 20:19:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-02 20:19:02,819 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-02 20:19:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 20:19:02,819 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 20:19:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-11-02 20:19:02,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-11-02 20:19:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2022-11-02 20:19:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2022-11-02 20:19:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2022-11-02 20:19:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2022-11-02 20:19:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:19:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:19:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:19:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-02 20:19:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-02 20:19:04,153 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:19:04,164 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:19:17,202 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:19:17,251 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:19:17,251 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 20:19:17,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:19:17 BoogieIcfgContainer [2022-11-02 20:19:17,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:19:17,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:19:17,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:19:17,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:19:17,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:18:56" (1/3) ... [2022-11-02 20:19:17,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ece74e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:19:17, skipping insertion in model container [2022-11-02 20:19:17,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:19:01" (2/3) ... [2022-11-02 20:19:17,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ece74e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:19:17, skipping insertion in model container [2022-11-02 20:19:17,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:19:17" (3/3) ... [2022-11-02 20:19:17,272 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-02 20:19:17,296 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:19:17,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:19:17,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:19:17,547 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;@ed9423, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:19:17,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:19:17,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 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) [2022-11-02 20:19:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:19:17,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:17,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:19:17,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:17,587 INFO L85 PathProgramCache]: Analyzing trace with hash -825410595, now seen corresponding path program 1 times [2022-11-02 20:19:17,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:17,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243545022] [2022-11-02 20:19:17,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:17,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:18,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:18,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:18,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243545022] [2022-11-02 20:19:18,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243545022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:18,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:18,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:19:18,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272094694] [2022-11-02 20:19:18,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:18,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:19:18,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:18,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:19:18,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:19:18,924 INFO L87 Difference]: Start difference. First operand has 3313 states, 2331 states have (on average 1.3951093951093951) internal successors, (3252), 2402 states have internal predecessors, (3252), 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) [2022-11-02 20:19:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:19,770 INFO L93 Difference]: Finished difference Result 9883 states and 15013 transitions. [2022-11-02 20:19:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:19:19,774 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 [2022-11-02 20:19:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:19,882 INFO L225 Difference]: With dead ends: 9883 [2022-11-02 20:19:19,882 INFO L226 Difference]: Without dead ends: 6563 [2022-11-02 20:19:19,931 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 [2022-11-02 20:19:19,939 INFO L413 NwaCegarLoop]: 7168 mSDtfsCounter, 4872 mSDsluCounter, 4897 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4872 SdHoareTripleChecker+Valid, 12065 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 [2022-11-02 20:19:19,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4872 Valid, 12065 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:19:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6563 states. [2022-11-02 20:19:20,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6563 to 6549. [2022-11-02 20:19:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6549 states, 4600 states have (on average 1.393695652173913) internal successors, (6411), 4734 states have internal predecessors, (6411), 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) [2022-11-02 20:19:20,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6549 states to 6549 states and 9761 transitions. [2022-11-02 20:19:20,733 INFO L78 Accepts]: Start accepts. Automaton has 6549 states and 9761 transitions. Word has length 14 [2022-11-02 20:19:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:20,734 INFO L495 AbstractCegarLoop]: Abstraction has 6549 states and 9761 transitions. [2022-11-02 20:19:20,734 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) [2022-11-02 20:19:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6549 states and 9761 transitions. [2022-11-02 20:19:20,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-02 20:19:20,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:20,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:19:20,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:19:20,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:20,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:20,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1327585593, now seen corresponding path program 1 times [2022-11-02 20:19:20,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:20,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712854074] [2022-11-02 20:19:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:21,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:21,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712854074] [2022-11-02 20:19:21,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712854074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:21,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:21,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:19:21,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427866339] [2022-11-02 20:19:21,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:21,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:19:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:21,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:19:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:19:21,388 INFO L87 Difference]: Start difference. First operand 6549 states and 9761 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) [2022-11-02 20:19:22,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:22,613 INFO L93 Difference]: Finished difference Result 19597 states and 29203 transitions. [2022-11-02 20:19:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:19:22,614 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 [2022-11-02 20:19:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:22,777 INFO L225 Difference]: With dead ends: 19597 [2022-11-02 20:19:22,777 INFO L226 Difference]: Without dead ends: 13051 [2022-11-02 20:19:22,846 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 [2022-11-02 20:19:22,848 INFO L413 NwaCegarLoop]: 6326 mSDtfsCounter, 4864 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4864 SdHoareTripleChecker+Valid, 11217 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:19:22,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4864 Valid, 11217 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:19:22,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2022-11-02 20:19:24,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13037. [2022-11-02 20:19:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13037 states, 9154 states have (on average 1.392724492025344) internal successors, (12749), 9418 states have internal predecessors, (12749), 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) [2022-11-02 20:19:24,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 19427 transitions. [2022-11-02 20:19:24,194 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 19427 transitions. Word has length 16 [2022-11-02 20:19:24,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:24,194 INFO L495 AbstractCegarLoop]: Abstraction has 13037 states and 19427 transitions. [2022-11-02 20:19:24,195 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) [2022-11-02 20:19:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 19427 transitions. [2022-11-02 20:19:24,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-02 20:19:24,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:24,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:19:24,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:19:24,199 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:24,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:24,212 INFO L85 PathProgramCache]: Analyzing trace with hash -269818897, now seen corresponding path program 1 times [2022-11-02 20:19:24,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:24,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757011824] [2022-11-02 20:19:24,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:24,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:24,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:24,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757011824] [2022-11-02 20:19:24,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757011824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:24,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:24,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:19:24,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86438352] [2022-11-02 20:19:24,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:24,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:19:24,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:19:24,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:19:24,812 INFO L87 Difference]: Start difference. First operand 13037 states and 19427 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) [2022-11-02 20:19:26,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:26,273 INFO L93 Difference]: Finished difference Result 38959 states and 58058 transitions. [2022-11-02 20:19:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:19:26,274 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 [2022-11-02 20:19:26,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:26,575 INFO L225 Difference]: With dead ends: 38959 [2022-11-02 20:19:26,575 INFO L226 Difference]: Without dead ends: 25925 [2022-11-02 20:19:26,693 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 [2022-11-02 20:19:26,697 INFO L413 NwaCegarLoop]: 6747 mSDtfsCounter, 4862 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4862 SdHoareTripleChecker+Valid, 11638 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:19:26,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4862 Valid, 11638 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:19:26,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25925 states. [2022-11-02 20:19:28,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25925 to 25911. [2022-11-02 20:19:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25911 states, 18183 states have (on average 1.3920695154814937) internal successors, (25312), 18706 states have internal predecessors, (25312), 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) [2022-11-02 20:19:29,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25911 states to 25911 states and 38614 transitions. [2022-11-02 20:19:29,138 INFO L78 Accepts]: Start accepts. Automaton has 25911 states and 38614 transitions. Word has length 18 [2022-11-02 20:19:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:29,139 INFO L495 AbstractCegarLoop]: Abstraction has 25911 states and 38614 transitions. [2022-11-02 20:19:29,139 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) [2022-11-02 20:19:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 25911 states and 38614 transitions. [2022-11-02 20:19:29,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-02 20:19:29,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:29,147 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] [2022-11-02 20:19:29,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:19:29,148 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:29,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1935095309, now seen corresponding path program 1 times [2022-11-02 20:19:29,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:29,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87659706] [2022-11-02 20:19:29,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:29,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:19:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:30,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:30,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87659706] [2022-11-02 20:19:30,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87659706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:30,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:30,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:19:30,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274156349] [2022-11-02 20:19:30,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:30,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:19:30,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:30,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:19:30,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:19:30,335 INFO L87 Difference]: Start difference. First operand 25911 states and 38614 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) [2022-11-02 20:19:31,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:31,854 INFO L93 Difference]: Finished difference Result 51854 states and 77278 transitions. [2022-11-02 20:19:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:19:31,857 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 [2022-11-02 20:19:31,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:32,227 INFO L225 Difference]: With dead ends: 51854 [2022-11-02 20:19:32,228 INFO L226 Difference]: Without dead ends: 25946 [2022-11-02 20:19:32,364 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 [2022-11-02 20:19:32,372 INFO L413 NwaCegarLoop]: 4906 mSDtfsCounter, 22 mSDsluCounter, 9807 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14713 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:19:32,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 14713 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:19:32,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25946 states. [2022-11-02 20:19:33,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25946 to 25914. [2022-11-02 20:19:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25914 states, 18186 states have (on average 1.392004838887056) internal successors, (25315), 18709 states have internal predecessors, (25315), 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) [2022-11-02 20:19:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25914 states to 25914 states and 38617 transitions. [2022-11-02 20:19:34,184 INFO L78 Accepts]: Start accepts. Automaton has 25914 states and 38617 transitions. Word has length 29 [2022-11-02 20:19:34,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:34,185 INFO L495 AbstractCegarLoop]: Abstraction has 25914 states and 38617 transitions. [2022-11-02 20:19:34,185 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) [2022-11-02 20:19:34,185 INFO L276 IsEmpty]: Start isEmpty. Operand 25914 states and 38617 transitions. [2022-11-02 20:19:34,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-02 20:19:34,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:34,192 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] [2022-11-02 20:19:34,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:19:34,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:34,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1992353611, now seen corresponding path program 1 times [2022-11-02 20:19:34,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:34,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318110039] [2022-11-02 20:19:34,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:34,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:34,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:19:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:34,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:34,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318110039] [2022-11-02 20:19:34,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318110039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:34,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:34,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:19:34,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106930739] [2022-11-02 20:19:34,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:34,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:19:34,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:34,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:19:34,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:19:34,877 INFO L87 Difference]: Start difference. First operand 25914 states and 38617 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) [2022-11-02 20:19:36,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:36,113 INFO L93 Difference]: Finished difference Result 25916 states and 38618 transitions. [2022-11-02 20:19:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:19:36,114 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 [2022-11-02 20:19:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:36,305 INFO L225 Difference]: With dead ends: 25916 [2022-11-02 20:19:36,305 INFO L226 Difference]: Without dead ends: 25913 [2022-11-02 20:19:36,322 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 [2022-11-02 20:19:36,323 INFO L413 NwaCegarLoop]: 4906 mSDtfsCounter, 4884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 4906 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 [2022-11-02 20:19:36,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 4906 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:19:36,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25913 states. [2022-11-02 20:19:38,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25913 to 25913. [2022-11-02 20:19:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25913 states, 18186 states have (on average 1.391949851534147) internal successors, (25314), 18708 states have internal predecessors, (25314), 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) [2022-11-02 20:19:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25913 states to 25913 states and 38615 transitions. [2022-11-02 20:19:38,497 INFO L78 Accepts]: Start accepts. Automaton has 25913 states and 38615 transitions. Word has length 29 [2022-11-02 20:19:38,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:38,498 INFO L495 AbstractCegarLoop]: Abstraction has 25913 states and 38615 transitions. [2022-11-02 20:19:38,499 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) [2022-11-02 20:19:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 25913 states and 38615 transitions. [2022-11-02 20:19:38,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-02 20:19:38,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:38,503 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] [2022-11-02 20:19:38,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:19:38,504 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:38,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:38,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1631933668, now seen corresponding path program 1 times [2022-11-02 20:19:38,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:38,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644612729] [2022-11-02 20:19:38,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:38,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:19:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:39,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:39,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644612729] [2022-11-02 20:19:39,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644612729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:39,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:39,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:19:39,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362858278] [2022-11-02 20:19:39,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:39,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:19:39,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:39,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:19:39,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:19:39,223 INFO L87 Difference]: Start difference. First operand 25913 states and 38615 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) [2022-11-02 20:19:40,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:40,397 INFO L93 Difference]: Finished difference Result 25915 states and 38616 transitions. [2022-11-02 20:19:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:19:40,398 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 [2022-11-02 20:19:40,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:40,601 INFO L225 Difference]: With dead ends: 25915 [2022-11-02 20:19:40,602 INFO L226 Difference]: Without dead ends: 25912 [2022-11-02 20:19:40,624 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 [2022-11-02 20:19:40,626 INFO L413 NwaCegarLoop]: 4904 mSDtfsCounter, 4881 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 4904 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 [2022-11-02 20:19:40,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:19:40,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2022-11-02 20:19:42,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 25912. [2022-11-02 20:19:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25912 states, 18186 states have (on average 1.3918948641812383) internal successors, (25313), 18707 states have internal predecessors, (25313), 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) [2022-11-02 20:19:42,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25912 states to 25912 states and 38613 transitions. [2022-11-02 20:19:42,955 INFO L78 Accepts]: Start accepts. Automaton has 25912 states and 38613 transitions. Word has length 30 [2022-11-02 20:19:42,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:42,956 INFO L495 AbstractCegarLoop]: Abstraction has 25912 states and 38613 transitions. [2022-11-02 20:19:42,956 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) [2022-11-02 20:19:42,956 INFO L276 IsEmpty]: Start isEmpty. Operand 25912 states and 38613 transitions. [2022-11-02 20:19:42,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-02 20:19:42,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:42,964 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] [2022-11-02 20:19:42,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:19:42,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:42,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash -951145106, now seen corresponding path program 1 times [2022-11-02 20:19:42,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:42,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993137660] [2022-11-02 20:19:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:42,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:43,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:19:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:43,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:43,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:43,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993137660] [2022-11-02 20:19:43,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993137660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:43,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:43,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:19:43,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5528243] [2022-11-02 20:19:43,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:43,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:19:43,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:43,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:19:43,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:19:43,655 INFO L87 Difference]: Start difference. First operand 25912 states and 38613 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) [2022-11-02 20:19:45,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:45,702 INFO L93 Difference]: Finished difference Result 40287 states and 59265 transitions. [2022-11-02 20:19:45,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:19:45,703 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 [2022-11-02 20:19:45,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:46,044 INFO L225 Difference]: With dead ends: 40287 [2022-11-02 20:19:46,045 INFO L226 Difference]: Without dead ends: 40283 [2022-11-02 20:19:46,075 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 [2022-11-02 20:19:46,077 INFO L413 NwaCegarLoop]: 5455 mSDtfsCounter, 4844 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 8434 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:19:46,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4844 Valid, 8434 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:19:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40283 states. [2022-11-02 20:19:48,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40283 to 40281. [2022-11-02 20:19:48,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40281 states, 28147 states have (on average 1.3720467545386719) internal successors, (38619), 28925 states have internal predecessors, (38619), 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) [2022-11-02 20:19:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40281 states to 40281 states and 59253 transitions. [2022-11-02 20:19:49,191 INFO L78 Accepts]: Start accepts. Automaton has 40281 states and 59253 transitions. Word has length 31 [2022-11-02 20:19:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:49,192 INFO L495 AbstractCegarLoop]: Abstraction has 40281 states and 59253 transitions. [2022-11-02 20:19:49,192 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) [2022-11-02 20:19:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 40281 states and 59253 transitions. [2022-11-02 20:19:49,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 20:19:49,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:49,197 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] [2022-11-02 20:19:49,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:19:49,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:49,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash 577796391, now seen corresponding path program 1 times [2022-11-02 20:19:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:49,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039774805] [2022-11-02 20:19:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:49,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:49,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:19:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:49,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:49,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:49,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039774805] [2022-11-02 20:19:49,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039774805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:49,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:49,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:19:49,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261266142] [2022-11-02 20:19:49,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:49,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:19:49,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:19:49,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:19:49,663 INFO L87 Difference]: Start difference. First operand 40281 states and 59253 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) [2022-11-02 20:19:52,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:19:52,236 INFO L93 Difference]: Finished difference Result 40283 states and 59254 transitions. [2022-11-02 20:19:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:19:52,243 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 [2022-11-02 20:19:52,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:19:52,530 INFO L225 Difference]: With dead ends: 40283 [2022-11-02 20:19:52,530 INFO L226 Difference]: Without dead ends: 40191 [2022-11-02 20:19:52,574 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 [2022-11-02 20:19:52,575 INFO L413 NwaCegarLoop]: 4899 mSDtfsCounter, 4873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 4899 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 [2022-11-02 20:19:52,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4873 Valid, 4899 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:19:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40191 states. [2022-11-02 20:19:55,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40191 to 40191. [2022-11-02 20:19:55,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40191 states, 28098 states have (on average 1.3718414122001565) internal successors, (38546), 28868 states have internal predecessors, (38546), 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) [2022-11-02 20:19:55,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40191 states to 40191 states and 59115 transitions. [2022-11-02 20:19:55,834 INFO L78 Accepts]: Start accepts. Automaton has 40191 states and 59115 transitions. Word has length 32 [2022-11-02 20:19:55,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:19:55,835 INFO L495 AbstractCegarLoop]: Abstraction has 40191 states and 59115 transitions. [2022-11-02 20:19:55,835 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) [2022-11-02 20:19:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 40191 states and 59115 transitions. [2022-11-02 20:19:55,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-02 20:19:55,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:19:55,865 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] [2022-11-02 20:19:55,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:19:55,866 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:19:55,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:19:55,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1062285101, now seen corresponding path program 1 times [2022-11-02 20:19:55,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:19:55,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658482680] [2022-11-02 20:19:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:19:55,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:19:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:19:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-02 20:19:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 20:19:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:19:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:57,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:19:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:57,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:19:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-02 20:19:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:19:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:19:57,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:19:57,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658482680] [2022-11-02 20:19:57,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658482680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:19:57,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:19:57,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:19:57,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898944357] [2022-11-02 20:19:57,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:19:57,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:19:57,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:19:57,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:19:57,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:19:57,262 INFO L87 Difference]: Start difference. First operand 40191 states and 59115 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) [2022-11-02 20:20:11,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:11,350 INFO L93 Difference]: Finished difference Result 108621 states and 161333 transitions. [2022-11-02 20:20:11,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:20:11,351 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 [2022-11-02 20:20:11,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:11,880 INFO L225 Difference]: With dead ends: 108621 [2022-11-02 20:20:11,880 INFO L226 Difference]: Without dead ends: 68433 [2022-11-02 20:20:12,163 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 [2022-11-02 20:20:12,166 INFO L413 NwaCegarLoop]: 9333 mSDtfsCounter, 5718 mSDsluCounter, 8621 mSDsCounter, 0 mSdLazyCounter, 3449 mSolverCounterSat, 1855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6541 SdHoareTripleChecker+Valid, 17954 SdHoareTripleChecker+Invalid, 5304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1855 IncrementalHoareTripleChecker+Valid, 3449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:12,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6541 Valid, 17954 Invalid, 5304 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1855 Valid, 3449 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-02 20:20:12,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68433 states. [2022-11-02 20:20:16,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68433 to 59224. [2022-11-02 20:20:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59224 states, 41416 states have (on average 1.372416457407765) internal successors, (56840), 42552 states have internal predecessors, (56840), 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) [2022-11-02 20:20:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59224 states to 59224 states and 87145 transitions. [2022-11-02 20:20:17,420 INFO L78 Accepts]: Start accepts. Automaton has 59224 states and 87145 transitions. Word has length 75 [2022-11-02 20:20:17,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:17,421 INFO L495 AbstractCegarLoop]: Abstraction has 59224 states and 87145 transitions. [2022-11-02 20:20:17,421 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-11-02 20:20:17,421 INFO L276 IsEmpty]: Start isEmpty. Operand 59224 states and 87145 transitions. [2022-11-02 20:20:17,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-02 20:20:17,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:17,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-02 20:20:17,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:20:17,449 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:17,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:17,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1878818405, now seen corresponding path program 1 times [2022-11-02 20:20:17,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:17,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867052614] [2022-11-02 20:20:17,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:17,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:20:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-02 20:20:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 20:20:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:20:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:20:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:20:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-02 20:20:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:20:18,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:20:18,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:20:18,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867052614] [2022-11-02 20:20:18,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867052614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:20:18,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:20:18,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:20:18,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155906939] [2022-11-02 20:20:18,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:20:18,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:20:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:20:18,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:20:18,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:20:18,099 INFO L87 Difference]: Start difference. First operand 59224 states and 87145 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-11-02 20:20:33,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:20:33,013 INFO L93 Difference]: Finished difference Result 159432 states and 236929 transitions. [2022-11-02 20:20:33,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:20:33,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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 79 [2022-11-02 20:20:33,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:20:33,643 INFO L225 Difference]: With dead ends: 159432 [2022-11-02 20:20:33,644 INFO L226 Difference]: Without dead ends: 100211 [2022-11-02 20:20:33,899 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 [2022-11-02 20:20:33,900 INFO L413 NwaCegarLoop]: 9368 mSDtfsCounter, 5719 mSDsluCounter, 8666 mSDsCounter, 0 mSdLazyCounter, 3452 mSolverCounterSat, 1847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6540 SdHoareTripleChecker+Valid, 18034 SdHoareTripleChecker+Invalid, 5299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1847 IncrementalHoareTripleChecker+Valid, 3452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:20:33,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6540 Valid, 18034 Invalid, 5299 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1847 Valid, 3452 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-02 20:20:34,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100211 states. [2022-11-02 20:20:38,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100211 to 86716. [2022-11-02 20:20:38,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86716 states, 60662 states have (on average 1.3732484916422143) internal successors, (83304), 62328 states have internal predecessors, (83304), 22185 states have call successors, (22185), 3869 states have call predecessors, (22185), 3868 states have return successors, (22184), 21952 states have call predecessors, (22184), 22184 states have call successors, (22184) [2022-11-02 20:20:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86716 states to 86716 states and 127673 transitions. [2022-11-02 20:20:39,511 INFO L78 Accepts]: Start accepts. Automaton has 86716 states and 127673 transitions. Word has length 79 [2022-11-02 20:20:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:20:39,511 INFO L495 AbstractCegarLoop]: Abstraction has 86716 states and 127673 transitions. [2022-11-02 20:20:39,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-11-02 20:20:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 86716 states and 127673 transitions. [2022-11-02 20:20:39,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-02 20:20:39,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:20:39,538 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] [2022-11-02 20:20:39,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:20:39,539 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:20:39,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:20:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1311107985, now seen corresponding path program 1 times [2022-11-02 20:20:39,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:20:39,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848999889] [2022-11-02 20:20:39,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:20:39,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:20:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat