./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/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_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 12:02:48,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:02:48,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:02:48,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:02:48,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:02:48,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:02:48,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:02:48,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:02:48,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:02:48,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:02:48,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:02:48,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:02:48,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:02:48,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:02:48,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:02:48,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:02:48,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:02:48,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:02:48,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:02:48,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:02:48,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:02:48,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:02:48,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:02:48,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:02:48,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:02:48,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:02:48,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:02:48,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:02:48,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:02:48,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:02:48,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:02:48,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:02:48,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:02:48,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:02:48,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:02:48,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:02:48,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:02:48,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:02:48,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:02:48,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:02:48,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:02:48,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:02:48,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:02:48,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:02:48,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:02:48,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:02:48,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:02:48,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:02:48,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:02:48,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:02:48,912 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:02:48,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:02:48,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:02:48,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:02:48,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:02:48,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:02:48,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:02:48,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:02:48,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:02:48,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:02:48,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:02:48,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:02:48,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:02:48,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:02:48,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:02:48,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:02:48,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:02:48,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:02:48,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:02:48,916 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:02:48,917 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:02:48,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:02:48,917 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_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0991342cd9e67cbadb964d86a1516812eb3aa45e84d4674c09b8e10a19f475c1 [2022-11-16 12:02:49,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:02:49,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:02:49,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:02:49,202 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:02:49,203 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:02:49,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-16 12:02:49,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/data/821cec33b/7a4cb626ad9348978f602c7d7e7daf03/FLAG6f563877a [2022-11-16 12:02:50,259 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:02:50,259 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-16 12:02:50,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/data/821cec33b/7a4cb626ad9348978f602c7d7e7daf03/FLAG6f563877a [2022-11-16 12:02:50,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/data/821cec33b/7a4cb626ad9348978f602c7d7e7daf03 [2022-11-16 12:02:50,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:02:50,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:02:50,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:02:50,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:02:50,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:02:50,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:02:50" (1/1) ... [2022-11-16 12:02:50,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26747632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:50, skipping insertion in model container [2022-11-16 12:02:50,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:02:50" (1/1) ... [2022-11-16 12:02:50,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:02:50,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:02:53,396 WARN L229 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_8ed559b5-78dc-46b6-8832-163dddd861ba/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-11-16 12:02:53,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:02:53,570 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:02:54,137 WARN L229 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_8ed559b5-78dc-46b6-8832-163dddd861ba/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i[339370,339383] [2022-11-16 12:02:54,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:02:54,281 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:02:54,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54 WrapperNode [2022-11-16 12:02:54,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:02:54,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:02:54,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:02:54,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:02:54,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,758 INFO L138 Inliner]: procedures = 326, calls = 4517, calls flagged for inlining = 131, calls inlined = 121, statements flattened = 9110 [2022-11-16 12:02:54,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:02:54,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:02:54,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:02:54,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:02:54,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:54,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:55,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:55,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:55,275 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:55,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:55,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:02:55,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:02:55,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:02:55,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:02:55,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (1/1) ... [2022-11-16 12:02:55,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:02:55,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:02:55,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:02:55,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ed559b5-78dc-46b6-8832-163dddd861ba/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:02:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ohci [2022-11-16 12:02:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ohci [2022-11-16 12:02:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-16 12:02:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-16 12:02:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-16 12:02:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-16 12:02:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-16 12:02:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-16 12:02:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure start_ed_unlink [2022-11-16 12:02:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure start_ed_unlink [2022-11-16 12:02:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_status [2022-11-16 12:02:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_status [2022-11-16 12:02:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-16 12:02:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-16 12:02:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_suspend [2022-11-16 12:02:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_suspend [2022-11-16 12:02:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2022-11-16 12:02:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2022-11-16 12:02:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure show_list [2022-11-16 12:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure show_list [2022-11-16 12:02:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_probe [2022-11-16 12:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_probe [2022-11-16 12:02:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:02:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-16 12:02:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-16 12:02:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-11-16 12:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-11-16 12:02:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure hcfs2string [2022-11-16 12:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure hcfs2string [2022-11-16 12:02:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_zfmicro [2022-11-16 12:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_zfmicro [2022-11-16 12:02:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-11-16 12:02:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-11-16 12:02:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_status_data [2022-11-16 12:02:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_status_data [2022-11-16 12:02:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_reset [2022-11-16 12:02:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_reset [2022-11-16 12:02:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_shutdown [2022-11-16 12:02:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_shutdown [2022-11-16 12:02:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 12:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 12:02:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:02:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_intr_mask [2022-11-16 12:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_intr_mask [2022-11-16 12:02:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-11-16 12:02:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-11-16 12:02:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_writel [2022-11-16 12:02:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_writel [2022-11-16 12:02:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 12:02:55,457 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 12:02:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:02:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hwPSWp [2022-11-16 12:02:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hwPSWp [2022-11-16 12:02:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_resume [2022-11-16 12:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_resume [2022-11-16 12:02:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_suspend [2022-11-16 12:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_suspend [2022-11-16 12:02:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-11-16 12:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-11-16 12:02:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 12:02:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 12:02:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:02:55,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:02:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure ed_schedule [2022-11-16 12:02:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_schedule [2022-11-16 12:02:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hcd_init [2022-11-16 12:02:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hcd_init [2022-11-16 12:02:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_roothub [2022-11-16 12:02:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_roothub [2022-11-16 12:02:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2022-11-16 12:02:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2022-11-16 12:02:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-16 12:02:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-16 12:02:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:02:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_stop [2022-11-16 12:02:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_stop [2022-11-16 12:02:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 12:02:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 12:02:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:02:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-16 12:02:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-16 12:02:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_remove [2022-11-16 12:02:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_remove [2022-11-16 12:02:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure check_ed [2022-11-16 12:02:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ed [2022-11-16 12:02:55,466 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_restart [2022-11-16 12:02:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_restart [2022-11-16 12:02:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_nec [2022-11-16 12:02:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_nec [2022-11-16 12:02:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 12:02:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 12:02:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-16 12:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-16 12:02:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure td_free [2022-11-16 12:02:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure td_free [2022-11-16 12:02:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure broken_suspend [2022-11-16 12:02:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_suspend [2022-11-16 12:02:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:02:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_resume [2022-11-16 12:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_resume [2022-11-16 12:02:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_platform_shutdown [2022-11-16 12:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_platform_shutdown [2022-11-16 12:02:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:02:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_portstatus [2022-11-16 12:02:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_portstatus [2022-11-16 12:02:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-16 12:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-16 12:02:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2022-11-16 12:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2022-11-16 12:02:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_remove [2022-11-16 12:02:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_remove [2022-11-16 12:02:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-16 12:02:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-16 12:02:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 12:02:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 12:02:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-16 12:02:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-16 12:02:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 12:02:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 12:02:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 12:02:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 12:02:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 12:02:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 12:02:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_resume [2022-11-16 12:02:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_resume [2022-11-16 12:02:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure ed_free [2022-11-16 12:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_free [2022-11-16 12:02:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 12:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 12:02:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-11-16 12:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-11-16 12:02:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_start [2022-11-16 12:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_start [2022-11-16 12:02:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump [2022-11-16 12:02:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump [2022-11-16 12:02:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_frame_no [2022-11-16 12:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_frame_no [2022-11-16 12:02:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-16 12:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-16 12:02:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 12:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 12:02:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-16 12:02:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-16 12:02:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure sb800_prefetch [2022-11-16 12:02:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure sb800_prefetch [2022-11-16 12:02:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_hub_control [2022-11-16 12:02:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_hub_control [2022-11-16 12:02:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-16 12:02:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-16 12:02:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:02:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure finish_urb [2022-11-16 12:02:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_urb [2022-11-16 12:02:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_rh_suspend [2022-11-16 12:02:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_rh_suspend [2022-11-16 12:02:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_a [2022-11-16 12:02:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_a [2022-11-16 12:02:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_irq [2022-11-16 12:02:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_irq [2022-11-16 12:02:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure rh_state_string [2022-11-16 12:02:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rh_state_string [2022-11-16 12:02:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure roothub_b [2022-11-16 12:02:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure roothub_b [2022-11-16 12:02:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_enqueue [2022-11-16 12:02:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_enqueue [2022-11-16 12:02:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_start_port_reset [2022-11-16 12:02:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_start_port_reset [2022-11-16 12:02:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_to_hcd [2022-11-16 12:02:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_to_hcd [2022-11-16 12:02:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_pci_start [2022-11-16 12:02:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_pci_start [2022-11-16 12:02:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure td_alloc [2022-11-16 12:02:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure td_alloc [2022-11-16 12:02:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure find_head [2022-11-16 12:02:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure find_head [2022-11-16 12:02:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:02:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:02:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_run [2022-11-16 12:02:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_run [2022-11-16 12:02:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-16 12:02:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-16 12:02:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_endpoint_disable [2022-11-16 12:02:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_endpoint_disable [2022-11-16 12:02:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:02:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure takeback_td [2022-11-16 12:02:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure takeback_td [2022-11-16 12:02:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdprefetch [2022-11-16 12:02:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdprefetch [2022-11-16 12:02:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-16 12:02:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-16 12:02:55,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:02:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure _ohci_readl [2022-11-16 12:02:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure _ohci_readl [2022-11-16 12:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-16 12:02:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-16 12:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure dl_done_list [2022-11-16 12:02:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dl_done_list [2022-11-16 12:02:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2022-11-16 12:02:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2022-11-16 12:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-16 12:02:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-16 12:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_reinit [2022-11-16 12:02:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_reinit [2022-11-16 12:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-16 12:02:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-16 12:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 12:02:55,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 12:02:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure td_done [2022-11-16 12:02:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure td_done [2022-11-16 12:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure td_fill [2022-11-16 12:02:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure td_fill [2022-11-16 12:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_urb_dequeue [2022-11-16 12:02:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_urb_dequeue [2022-11-16 12:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:02:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 12:02:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_init [2022-11-16 12:02:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_init [2022-11-16 12:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-16 12:02:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-16 12:02:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc16 [2022-11-16 12:02:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc16 [2022-11-16 12:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 12:02:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 12:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure quirk_amdiso [2022-11-16 12:02:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure quirk_amdiso [2022-11-16 12:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-16 12:02:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-16 12:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-16 12:02:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-16 12:02:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure ed_deschedule [2022-11-16 12:02:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ed_deschedule [2022-11-16 12:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-11-16 12:02:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-11-16 12:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure urb_free_priv [2022-11-16 12:02:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_free_priv [2022-11-16 12:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure finish_unlinks [2022-11-16 12:02:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_unlinks [2022-11-16 12:02:55,497 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-11-16 12:02:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-11-16 12:02:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2022-11-16 12:02:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2022-11-16 12:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_dump_status [2022-11-16 12:02:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_dump_status [2022-11-16 12:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_print_eds [2022-11-16 12:02:55,502 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_print_eds [2022-11-16 12:02:55,502 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-11-16 12:02:55,503 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-11-16 12:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_get_frame [2022-11-16 12:02:55,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_get_frame [2022-11-16 12:02:55,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-11-16 12:02:55,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_debug_buffer [2022-11-16 12:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 12:02:55,505 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 12:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-16 12:02:55,505 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-16 12:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-11-16 12:02:55,505 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-11-16 12:02:55,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 12:02:55,505 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 12:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_usb_reset [2022-11-16 12:02:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_usb_reset [2022-11-16 12:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_resume [2022-11-16 12:02:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_resume [2022-11-16 12:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-16 12:02:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-16 12:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 12:02:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 12:02:55,506 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_bus_suspend [2022-11-16 12:02:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_bus_suspend [2022-11-16 12:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure ohci_platform_reset [2022-11-16 12:02:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ohci_platform_reset [2022-11-16 12:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_pci_shutdown [2022-11-16 12:02:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_pci_shutdown [2022-11-16 12:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:02:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:02:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-16 12:02:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-16 12:02:56,904 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:02:56,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:03:07,312 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:03:07,335 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:03:07,335 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 12:03:07,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:07 BoogieIcfgContainer [2022-11-16 12:03:07,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:03:07,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:03:07,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:03:07,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:03:07,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:02:50" (1/3) ... [2022-11-16 12:03:07,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bb351c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:07, skipping insertion in model container [2022-11-16 12:03:07,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:02:54" (2/3) ... [2022-11-16 12:03:07,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bb351c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:07, skipping insertion in model container [2022-11-16 12:03:07,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:07" (3/3) ... [2022-11-16 12:03:07,349 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--usb--host--ohci-hcd.ko-main.cil.out.i [2022-11-16 12:03:07,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:03:07,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:03:07,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:03:07,477 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;@19eb96e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:03:07,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:03:07,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 3424 states, 2442 states have (on average 1.4148239148239148) internal successors, (3455), 2513 states have internal predecessors, (3455), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) [2022-11-16 12:03:07,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:03:07,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:07,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:07,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:07,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:07,504 INFO L85 PathProgramCache]: Analyzing trace with hash -559051029, now seen corresponding path program 1 times [2022-11-16 12:03:07,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:07,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784047083] [2022-11-16 12:03:07,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:07,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:08,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:08,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784047083] [2022-11-16 12:03:08,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784047083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:08,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:08,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:08,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428784698] [2022-11-16 12:03:08,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:08,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:08,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:08,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:08,490 INFO L87 Difference]: Start difference. First operand has 3424 states, 2442 states have (on average 1.4148239148239148) internal successors, (3455), 2513 states have internal predecessors, (3455), 848 states have call successors, (848), 136 states have call predecessors, (848), 136 states have return successors, (848), 839 states have call predecessors, (848), 848 states have call successors, (848) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:09,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:09,469 INFO L93 Difference]: Finished difference Result 10216 states and 15650 transitions. [2022-11-16 12:03:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:09,472 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 [2022-11-16 12:03:09,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:09,552 INFO L225 Difference]: With dead ends: 10216 [2022-11-16 12:03:09,552 INFO L226 Difference]: Without dead ends: 6785 [2022-11-16 12:03:09,593 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 [2022-11-16 12:03:09,598 INFO L413 NwaCegarLoop]: 7174 mSDtfsCounter, 5057 mSDsluCounter, 5082 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5057 SdHoareTripleChecker+Valid, 12256 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:09,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5057 Valid, 12256 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:03:09,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6785 states. [2022-11-16 12:03:10,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6785 to 6771. [2022-11-16 12:03:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6771 states, 4822 states have (on average 1.4062629614267939) internal successors, (6781), 4956 states have internal predecessors, (6781), 1678 states have call successors, (1678), 271 states have call predecessors, (1678), 270 states have return successors, (1672), 1653 states have call predecessors, (1672), 1672 states have call successors, (1672) [2022-11-16 12:03:10,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6771 states to 6771 states and 10131 transitions. [2022-11-16 12:03:10,136 INFO L78 Accepts]: Start accepts. Automaton has 6771 states and 10131 transitions. Word has length 14 [2022-11-16 12:03:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:10,137 INFO L495 AbstractCegarLoop]: Abstraction has 6771 states and 10131 transitions. [2022-11-16 12:03:10,137 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) [2022-11-16 12:03:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 6771 states and 10131 transitions. [2022-11-16 12:03:10,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 12:03:10,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:10,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:10,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:03:10,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:10,149 INFO L85 PathProgramCache]: Analyzing trace with hash 45174215, now seen corresponding path program 1 times [2022-11-16 12:03:10,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:10,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544804732] [2022-11-16 12:03:10,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:10,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:10,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:10,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544804732] [2022-11-16 12:03:10,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544804732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:10,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:10,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:10,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226984328] [2022-11-16 12:03:10,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:10,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:10,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:10,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:10,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:10,648 INFO L87 Difference]: Start difference. First operand 6771 states and 10131 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:11,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:11,514 INFO L93 Difference]: Finished difference Result 20263 states and 30313 transitions. [2022-11-16 12:03:11,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:11,515 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 [2022-11-16 12:03:11,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:11,647 INFO L225 Difference]: With dead ends: 20263 [2022-11-16 12:03:11,647 INFO L226 Difference]: Without dead ends: 13495 [2022-11-16 12:03:11,705 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 [2022-11-16 12:03:11,706 INFO L413 NwaCegarLoop]: 6728 mSDtfsCounter, 5049 mSDsluCounter, 5076 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5049 SdHoareTripleChecker+Valid, 11804 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:11,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5049 Valid, 11804 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13495 states. [2022-11-16 12:03:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13495 to 13481. [2022-11-16 12:03:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13481 states, 9598 states have (on average 1.4053969576995207) internal successors, (13489), 9862 states have internal predecessors, (13489), 3342 states have call successors, (3342), 541 states have call predecessors, (3342), 540 states have return successors, (3336), 3297 states have call predecessors, (3336), 3336 states have call successors, (3336) [2022-11-16 12:03:12,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13481 states to 13481 states and 20167 transitions. [2022-11-16 12:03:12,639 INFO L78 Accepts]: Start accepts. Automaton has 13481 states and 20167 transitions. Word has length 16 [2022-11-16 12:03:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:12,640 INFO L495 AbstractCegarLoop]: Abstraction has 13481 states and 20167 transitions. [2022-11-16 12:03:12,641 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) [2022-11-16 12:03:12,641 INFO L276 IsEmpty]: Start isEmpty. Operand 13481 states and 20167 transitions. [2022-11-16 12:03:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 12:03:12,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:12,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:12,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:03:12,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:12,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:12,645 INFO L85 PathProgramCache]: Analyzing trace with hash 432544253, now seen corresponding path program 1 times [2022-11-16 12:03:12,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:12,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939327976] [2022-11-16 12:03:12,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:12,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:13,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:13,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939327976] [2022-11-16 12:03:13,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939327976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:13,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:13,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:13,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322196933] [2022-11-16 12:03:13,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:13,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:13,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:13,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:13,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:13,096 INFO L87 Difference]: Start difference. First operand 13481 states and 20167 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:14,202 INFO L93 Difference]: Finished difference Result 40291 states and 60278 transitions. [2022-11-16 12:03:14,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:14,203 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 [2022-11-16 12:03:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:14,369 INFO L225 Difference]: With dead ends: 40291 [2022-11-16 12:03:14,369 INFO L226 Difference]: Without dead ends: 26813 [2022-11-16 12:03:14,422 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 [2022-11-16 12:03:14,423 INFO L413 NwaCegarLoop]: 7051 mSDtfsCounter, 5047 mSDsluCounter, 5076 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5047 SdHoareTripleChecker+Valid, 12127 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:14,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5047 Valid, 12127 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:14,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26813 states. [2022-11-16 12:03:15,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26813 to 26799. [2022-11-16 12:03:15,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26799 states, 19071 states have (on average 1.404855539824865) internal successors, (26792), 19594 states have internal predecessors, (26792), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-11-16 12:03:15,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26799 states to 26799 states and 40094 transitions. [2022-11-16 12:03:15,991 INFO L78 Accepts]: Start accepts. Automaton has 26799 states and 40094 transitions. Word has length 18 [2022-11-16 12:03:15,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:15,992 INFO L495 AbstractCegarLoop]: Abstraction has 26799 states and 40094 transitions. [2022-11-16 12:03:15,992 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) [2022-11-16 12:03:15,992 INFO L276 IsEmpty]: Start isEmpty. Operand 26799 states and 40094 transitions. [2022-11-16 12:03:15,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 12:03:15,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:15,998 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] [2022-11-16 12:03:15,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:03:15,998 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:15,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash -83154553, now seen corresponding path program 1 times [2022-11-16 12:03:16,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:16,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341943140] [2022-11-16 12:03:16,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:16,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:03:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:16,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:16,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:16,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341943140] [2022-11-16 12:03:16,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341943140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:16,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:16,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:03:16,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965771057] [2022-11-16 12:03:16,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:16,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:03:16,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:16,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:03:16,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:03:16,620 INFO L87 Difference]: Start difference. First operand 26799 states and 40094 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:03:18,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:18,210 INFO L93 Difference]: Finished difference Result 53630 states and 80238 transitions. [2022-11-16 12:03:18,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:03:18,210 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 [2022-11-16 12:03:18,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:18,619 INFO L225 Difference]: With dead ends: 53630 [2022-11-16 12:03:18,619 INFO L226 Difference]: Without dead ends: 26834 [2022-11-16 12:03:18,716 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 [2022-11-16 12:03:18,724 INFO L413 NwaCegarLoop]: 5091 mSDtfsCounter, 22 mSDsluCounter, 10177 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 15268 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:18,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 15268 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:18,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26834 states. [2022-11-16 12:03:19,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26834 to 26802. [2022-11-16 12:03:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26802 states, 19074 states have (on average 1.4047918632693719) internal successors, (26795), 19597 states have internal predecessors, (26795), 6654 states have call successors, (6654), 1074 states have call predecessors, (6654), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-11-16 12:03:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26802 states to 26802 states and 40097 transitions. [2022-11-16 12:03:20,123 INFO L78 Accepts]: Start accepts. Automaton has 26802 states and 40097 transitions. Word has length 29 [2022-11-16 12:03:20,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:20,124 INFO L495 AbstractCegarLoop]: Abstraction has 26802 states and 40097 transitions. [2022-11-16 12:03:20,124 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) [2022-11-16 12:03:20,124 INFO L276 IsEmpty]: Start isEmpty. Operand 26802 states and 40097 transitions. [2022-11-16 12:03:20,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 12:03:20,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:20,128 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] [2022-11-16 12:03:20,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:03:20,129 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:20,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:20,130 INFO L85 PathProgramCache]: Analyzing trace with hash -25896251, now seen corresponding path program 1 times [2022-11-16 12:03:20,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:20,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775925593] [2022-11-16 12:03:20,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:20,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:20,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:03:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:20,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:20,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775925593] [2022-11-16 12:03:20,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775925593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:20,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:20,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:20,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368021424] [2022-11-16 12:03:20,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:20,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:20,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:20,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:20,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:20,763 INFO L87 Difference]: Start difference. First operand 26802 states and 40097 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:03:21,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:21,966 INFO L93 Difference]: Finished difference Result 26804 states and 40098 transitions. [2022-11-16 12:03:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:21,967 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 [2022-11-16 12:03:21,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:22,105 INFO L225 Difference]: With dead ends: 26804 [2022-11-16 12:03:22,106 INFO L226 Difference]: Without dead ends: 26801 [2022-11-16 12:03:22,117 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 [2022-11-16 12:03:22,118 INFO L413 NwaCegarLoop]: 5091 mSDtfsCounter, 5069 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 5091 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:22,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5069 Valid, 5091 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:22,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26801 states. [2022-11-16 12:03:23,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26801 to 26801. [2022-11-16 12:03:23,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26801 states, 19074 states have (on average 1.4047394358813043) internal successors, (26794), 19596 states have internal predecessors, (26794), 6653 states have call successors, (6653), 1074 states have call predecessors, (6653), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-11-16 12:03:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26801 states to 26801 states and 40095 transitions. [2022-11-16 12:03:23,864 INFO L78 Accepts]: Start accepts. Automaton has 26801 states and 40095 transitions. Word has length 29 [2022-11-16 12:03:23,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:23,865 INFO L495 AbstractCegarLoop]: Abstraction has 26801 states and 40095 transitions. [2022-11-16 12:03:23,865 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) [2022-11-16 12:03:23,865 INFO L276 IsEmpty]: Start isEmpty. Operand 26801 states and 40095 transitions. [2022-11-16 12:03:23,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 12:03:23,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:23,868 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] [2022-11-16 12:03:23,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:03:23,869 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash -804260206, now seen corresponding path program 1 times [2022-11-16 12:03:23,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:23,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95160248] [2022-11-16 12:03:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:23,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:03:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:24,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:24,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95160248] [2022-11-16 12:03:24,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95160248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:24,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:24,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:24,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068837092] [2022-11-16 12:03:24,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:24,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:24,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:24,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:24,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:24,240 INFO L87 Difference]: Start difference. First operand 26801 states and 40095 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:03:25,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:25,433 INFO L93 Difference]: Finished difference Result 26803 states and 40096 transitions. [2022-11-16 12:03:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:25,434 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 [2022-11-16 12:03:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:25,590 INFO L225 Difference]: With dead ends: 26803 [2022-11-16 12:03:25,590 INFO L226 Difference]: Without dead ends: 26800 [2022-11-16 12:03:25,607 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 [2022-11-16 12:03:25,608 INFO L413 NwaCegarLoop]: 5089 mSDtfsCounter, 5066 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:25,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5066 Valid, 5089 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:25,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26800 states. [2022-11-16 12:03:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26800 to 26800. [2022-11-16 12:03:27,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26800 states, 19074 states have (on average 1.4046870084932368) internal successors, (26793), 19595 states have internal predecessors, (26793), 6652 states have call successors, (6652), 1074 states have call predecessors, (6652), 1073 states have return successors, (6648), 6569 states have call predecessors, (6648), 6648 states have call successors, (6648) [2022-11-16 12:03:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26800 states to 26800 states and 40093 transitions. [2022-11-16 12:03:27,592 INFO L78 Accepts]: Start accepts. Automaton has 26800 states and 40093 transitions. Word has length 30 [2022-11-16 12:03:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:27,593 INFO L495 AbstractCegarLoop]: Abstraction has 26800 states and 40093 transitions. [2022-11-16 12:03:27,593 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) [2022-11-16 12:03:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 26800 states and 40093 transitions. [2022-11-16 12:03:27,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 12:03:27,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:27,599 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] [2022-11-16 12:03:27,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:03:27,599 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:27,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:27,600 INFO L85 PathProgramCache]: Analyzing trace with hash 836265832, now seen corresponding path program 1 times [2022-11-16 12:03:27,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:27,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730593156] [2022-11-16 12:03:27,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:27,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:27,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:03:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:27,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:27,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730593156] [2022-11-16 12:03:27,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730593156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:27,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:27,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:27,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119737949] [2022-11-16 12:03:27,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:27,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:27,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:27,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:27,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:27,979 INFO L87 Difference]: Start difference. First operand 26800 states and 40093 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:03:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:29,954 INFO L93 Difference]: Finished difference Result 41651 states and 61529 transitions. [2022-11-16 12:03:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:29,954 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 [2022-11-16 12:03:29,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:30,190 INFO L225 Difference]: With dead ends: 41651 [2022-11-16 12:03:30,190 INFO L226 Difference]: Without dead ends: 41647 [2022-11-16 12:03:30,210 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 [2022-11-16 12:03:30,212 INFO L413 NwaCegarLoop]: 5640 mSDtfsCounter, 5029 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5029 SdHoareTripleChecker+Valid, 8731 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:30,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5029 Valid, 8731 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:30,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41647 states. [2022-11-16 12:03:32,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41647 to 41645. [2022-11-16 12:03:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41645 states, 29511 states have (on average 1.3853478363999865) internal successors, (40883), 30289 states have internal predecessors, (40883), 10318 states have call successors, (10318), 1816 states have call predecessors, (10318), 1815 states have return successors, (10316), 10202 states have call predecessors, (10316), 10316 states have call successors, (10316) [2022-11-16 12:03:32,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41645 states to 41645 states and 61517 transitions. [2022-11-16 12:03:32,659 INFO L78 Accepts]: Start accepts. Automaton has 41645 states and 61517 transitions. Word has length 31 [2022-11-16 12:03:32,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:32,660 INFO L495 AbstractCegarLoop]: Abstraction has 41645 states and 61517 transitions. [2022-11-16 12:03:32,660 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) [2022-11-16 12:03:32,661 INFO L276 IsEmpty]: Start isEmpty. Operand 41645 states and 61517 transitions. [2022-11-16 12:03:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 12:03:32,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:32,665 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] [2022-11-16 12:03:32,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:03:32,665 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:32,666 INFO L85 PathProgramCache]: Analyzing trace with hash 152970325, now seen corresponding path program 1 times [2022-11-16 12:03:32,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:32,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774890169] [2022-11-16 12:03:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:32,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:33,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:03:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:33,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:33,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774890169] [2022-11-16 12:03:33,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774890169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:33,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:33,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:33,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547021365] [2022-11-16 12:03:33,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:33,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:33,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:33,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:33,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:33,133 INFO L87 Difference]: Start difference. First operand 41645 states and 61517 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:03:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:34,869 INFO L93 Difference]: Finished difference Result 41647 states and 61518 transitions. [2022-11-16 12:03:34,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:34,874 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 [2022-11-16 12:03:34,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:35,067 INFO L225 Difference]: With dead ends: 41647 [2022-11-16 12:03:35,067 INFO L226 Difference]: Without dead ends: 41555 [2022-11-16 12:03:35,097 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 [2022-11-16 12:03:35,098 INFO L413 NwaCegarLoop]: 5084 mSDtfsCounter, 5058 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5058 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:35,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5058 Valid, 5084 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:35,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41555 states. [2022-11-16 12:03:37,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41555 to 41555. [2022-11-16 12:03:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41555 states, 29462 states have (on average 1.3851741225986016) internal successors, (40810), 30232 states have internal predecessors, (40810), 10285 states have call successors, (10285), 1808 states have call predecessors, (10285), 1807 states have return successors, (10284), 10177 states have call predecessors, (10284), 10284 states have call successors, (10284) [2022-11-16 12:03:37,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41555 states to 41555 states and 61379 transitions. [2022-11-16 12:03:37,658 INFO L78 Accepts]: Start accepts. Automaton has 41555 states and 61379 transitions. Word has length 32 [2022-11-16 12:03:37,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:37,658 INFO L495 AbstractCegarLoop]: Abstraction has 41555 states and 61379 transitions. [2022-11-16 12:03:37,658 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) [2022-11-16 12:03:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 41555 states and 61379 transitions. [2022-11-16 12:03:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 12:03:37,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:37,682 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] [2022-11-16 12:03:37,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:03:37,682 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:37,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:37,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1744424098, now seen corresponding path program 1 times [2022-11-16 12:03:37,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:37,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617559089] [2022-11-16 12:03:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:37,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:03:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:03:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:38,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 12:03:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:03:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:03:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:03:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 12:03:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:38,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:38,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617559089] [2022-11-16 12:03:38,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617559089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:38,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:38,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:03:38,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014293034] [2022-11-16 12:03:38,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:38,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:03:38,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:38,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:03:38,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:03:38,320 INFO L87 Difference]: Start difference. First operand 41555 states and 61379 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:03:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:51,778 INFO L93 Difference]: Finished difference Result 112523 states and 167767 transitions. [2022-11-16 12:03:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:03:51,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2022-11-16 12:03:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:52,196 INFO L225 Difference]: With dead ends: 112523 [2022-11-16 12:03:52,196 INFO L226 Difference]: Without dead ends: 70971 [2022-11-16 12:03:52,378 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 [2022-11-16 12:03:52,378 INFO L413 NwaCegarLoop]: 8655 mSDtfsCounter, 6139 mSDsluCounter, 9060 mSDsCounter, 0 mSdLazyCounter, 4518 mSolverCounterSat, 1763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6960 SdHoareTripleChecker+Valid, 17715 SdHoareTripleChecker+Invalid, 6281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1763 IncrementalHoareTripleChecker+Valid, 4518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:52,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6960 Valid, 17715 Invalid, 6281 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1763 Valid, 4518 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-16 12:03:52,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70971 states. [2022-11-16 12:03:55,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70971 to 61236. [2022-11-16 12:03:55,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61236 states, 43428 states have (on average 1.3857419176568113) internal successors, (60180), 44564 states have internal predecessors, (60180), 15153 states have call successors, (15153), 2655 states have call predecessors, (15153), 2654 states have return successors, (15152), 14994 states have call predecessors, (15152), 15152 states have call successors, (15152) [2022-11-16 12:03:56,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61236 states to 61236 states and 90485 transitions. [2022-11-16 12:03:56,243 INFO L78 Accepts]: Start accepts. Automaton has 61236 states and 90485 transitions. Word has length 77 [2022-11-16 12:03:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:56,244 INFO L495 AbstractCegarLoop]: Abstraction has 61236 states and 90485 transitions. [2022-11-16 12:03:56,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:03:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 61236 states and 90485 transitions. [2022-11-16 12:03:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 12:03:56,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:56,265 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] [2022-11-16 12:03:56,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:03:56,265 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:03:56,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:56,266 INFO L85 PathProgramCache]: Analyzing trace with hash 364850690, now seen corresponding path program 1 times [2022-11-16 12:03:56,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:56,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788977190] [2022-11-16 12:03:56,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:56,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:03:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:03:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 12:03:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:03:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:03:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:03:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:03:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:56,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:56,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788977190] [2022-11-16 12:03:56,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788977190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:56,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:56,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:03:56,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711180639] [2022-11-16 12:03:56,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:56,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:03:56,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:56,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:03:56,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:03:56,804 INFO L87 Difference]: Start difference. First operand 61236 states and 90485 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:04:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:10,939 INFO L93 Difference]: Finished difference Result 165164 states and 246383 transitions. [2022-11-16 12:04:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:04:10,940 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 [2022-11-16 12:04:10,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:11,493 INFO L225 Difference]: With dead ends: 165164 [2022-11-16 12:04:11,493 INFO L226 Difference]: Without dead ends: 103931 [2022-11-16 12:04:11,699 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 [2022-11-16 12:04:11,700 INFO L413 NwaCegarLoop]: 8720 mSDtfsCounter, 6080 mSDsluCounter, 9053 mSDsCounter, 0 mSdLazyCounter, 4521 mSolverCounterSat, 1748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6898 SdHoareTripleChecker+Valid, 17773 SdHoareTripleChecker+Invalid, 6269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1748 IncrementalHoareTripleChecker+Valid, 4521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:11,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6898 Valid, 17773 Invalid, 6269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1748 Valid, 4521 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-11-16 12:04:11,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103931 states. [2022-11-16 12:04:16,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103931 to 89666. [2022-11-16 12:04:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89666 states, 63612 states have (on average 1.3865622838458151) internal successors, (88202), 65278 states have internal predecessors, (88202), 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) [2022-11-16 12:04:16,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89666 states to 89666 states and 132571 transitions. [2022-11-16 12:04:16,843 INFO L78 Accepts]: Start accepts. Automaton has 89666 states and 132571 transitions. Word has length 75 [2022-11-16 12:04:16,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:16,844 INFO L495 AbstractCegarLoop]: Abstraction has 89666 states and 132571 transitions. [2022-11-16 12:04:16,844 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) [2022-11-16 12:04:16,844 INFO L276 IsEmpty]: Start isEmpty. Operand 89666 states and 132571 transitions. [2022-11-16 12:04:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 12:04:16,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:16,866 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] [2022-11-16 12:04:16,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:04:16,866 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:16,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:16,867 INFO L85 PathProgramCache]: Analyzing trace with hash 257617684, now seen corresponding path program 1 times [2022-11-16 12:04:16,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:16,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304145697] [2022-11-16 12:04:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:16,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-16 12:04:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-16 12:04:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 12:04:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:04:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:04:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:04:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-16 12:04:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:17,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:17,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304145697] [2022-11-16 12:04:17,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304145697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:17,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:17,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:04:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335147306] [2022-11-16 12:04:17,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:17,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:04:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:17,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:04:17,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:04:17,411 INFO L87 Difference]: Start difference. First operand 89666 states and 132571 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)