./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:37:44,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:37:44,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:37:44,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:37:44,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:37:44,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:37:44,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:37:44,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:37:44,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:37:44,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:37:44,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:37:44,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:37:44,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:37:44,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:37:44,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:37:44,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:37:44,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:37:44,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:37:44,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:37:44,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:37:44,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:37:44,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:37:44,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:37:44,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:37:44,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:37:44,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:37:44,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:37:44,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:37:44,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:37:44,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:37:44,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:37:44,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:37:44,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:37:44,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:37:44,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:37:44,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:37:44,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:37:44,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:37:44,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:37:44,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:37:44,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:37:44,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:37:44,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:37:44,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:37:44,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:37:44,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:37:44,503 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:37:44,503 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:37:44,503 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:37:44,503 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:37:44,504 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:37:44,504 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:37:44,505 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:37:44,505 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:37:44,506 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:37:44,506 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:37:44,506 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:37:44,506 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:37:44,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:37:44,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:37:44,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:37:44,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:37:44,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:37:44,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:37:44,509 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:37:44,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:37:44,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:37:44,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:37:44,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:37:44,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:37:44,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:37:44,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:37:44,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:37:44,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:37:44,514 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:37:44,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:37:44,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:37:44,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:37:44,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:37:44,515 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2021-11-12 23:37:44,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:37:44,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:37:44,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:37:44,929 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:37:44,930 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:37:44,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-12 23:37:45,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data/9801a721b/8e809434e3b74e3fa53517c6fc4e562d/FLAG7cc1a6cd3 [2021-11-12 23:37:45,868 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:37:45,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-12 23:37:45,905 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data/9801a721b/8e809434e3b74e3fa53517c6fc4e562d/FLAG7cc1a6cd3 [2021-11-12 23:37:45,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data/9801a721b/8e809434e3b74e3fa53517c6fc4e562d [2021-11-12 23:37:45,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:37:45,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:37:45,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:37:45,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:37:45,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:37:45,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:37:45" (1/1) ... [2021-11-12 23:37:45,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f60116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:45, skipping insertion in model container [2021-11-12 23:37:45,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:37:45" (1/1) ... [2021-11-12 23:37:45,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:37:46,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:37:46,946 WARN L228 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_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2021-11-12 23:37:47,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:37:47,053 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:37:47,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b38b39f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:47, skipping insertion in model container [2021-11-12 23:37:47,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:37:47,054 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:37:47,057 INFO L158 Benchmark]: Toolchain (without parser) took 1098.33ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 59.5MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-12 23:37:47,059 INFO L158 Benchmark]: CDTParser took 1.12ms. Allocated memory is still 86.0MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:37:47,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1095.57ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 59.5MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-12 23:37:47,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12ms. Allocated memory is still 86.0MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1095.57ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 59.5MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3446]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:37:49,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:37:49,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:37:49,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:37:49,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:37:49,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:37:49,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:37:49,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:37:49,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:37:49,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:37:49,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:37:49,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:37:49,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:37:49,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:37:49,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:37:49,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:37:49,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:37:49,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:37:49,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:37:49,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:37:49,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:37:49,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:37:49,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:37:49,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:37:49,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:37:49,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:37:49,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:37:49,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:37:49,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:37:49,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:37:49,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:37:49,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:37:49,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:37:49,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:37:49,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:37:49,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:37:49,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:37:49,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:37:49,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:37:49,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:37:49,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:37:49,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:37:49,731 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:37:49,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:37:49,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:37:49,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:37:49,733 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:37:49,734 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:37:49,734 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:37:49,734 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:37:49,734 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:37:49,735 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:37:49,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:37:49,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:37:49,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:37:49,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:37:49,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:37:49,738 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:37:49,738 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:37:49,739 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:37:49,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:37:49,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:37:49,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:37:49,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:37:49,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:37:49,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:37:49,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:37:49,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:37:49,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:37:49,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:37:49,741 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:37:49,741 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:37:49,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:37:49,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:37:49,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:37:49,742 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7325716246446e6137919cda7fc42ef01fc613ff512d250d81e88f25c6debe0a [2021-11-12 23:37:50,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:37:50,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:37:50,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:37:50,194 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:37:50,195 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:37:50,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-12 23:37:50,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data/e229c50eb/636c71caa7f843a58e63b76ad4b7cb65/FLAG9fbca6566 [2021-11-12 23:37:51,129 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:37:51,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-12 23:37:51,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data/e229c50eb/636c71caa7f843a58e63b76ad4b7cb65/FLAG9fbca6566 [2021-11-12 23:37:51,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/data/e229c50eb/636c71caa7f843a58e63b76ad4b7cb65 [2021-11-12 23:37:51,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:37:51,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:37:51,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:37:51,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:37:51,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:37:51,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:37:51" (1/1) ... [2021-11-12 23:37:51,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba934bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:51, skipping insertion in model container [2021-11-12 23:37:51,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:37:51" (1/1) ... [2021-11-12 23:37:51,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:37:51,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:37:52,211 WARN L228 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_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2021-11-12 23:37:52,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:37:52,340 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:37:52,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:37:52,591 WARN L228 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_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2021-11-12 23:37:52,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:37:52,630 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:37:52,840 WARN L228 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_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i[115804,115817] [2021-11-12 23:37:52,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:37:52,909 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:37:52,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52 WrapperNode [2021-11-12 23:37:52,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:37:52,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:37:52,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:37:52,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:37:52,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:52,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:37:53,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:37:53,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:37:53,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:37:53,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:37:53,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:37:53,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:37:53,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:37:53,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (1/1) ... [2021-11-12 23:37:53,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:37:53,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:37:53,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:37:53,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:37:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_init [2021-11-12 23:37:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_init [2021-11-12 23:37:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-12 23:37:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-12 23:37:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:37:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:37:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:37:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-12 23:37:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-12 23:37:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure kbtab_exit [2021-11-12 23:37:53,339 INFO L138 BoogieDeclarations]: Found implementation of procedure kbtab_exit [2021-11-12 23:37:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:37:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:37:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:37:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-11-12 23:37:53,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-11-12 23:37:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:37:53,341 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-12 23:37:53,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-12 23:37:53,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:37:53,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:37:53,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:37:53,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:37:53,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-12 23:37:53,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-12 23:37:53,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:37:53,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:37:53,343 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-12 23:37:53,343 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-12 23:37:53,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:37:53,343 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:37:53,344 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:37:53,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:37:53,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:37:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:37:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:37:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-12 23:37:53,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-12 23:37:53,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-11-12 23:37:53,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-11-12 23:37:53,346 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-12 23:37:53,347 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-12 23:37:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-11-12 23:37:53,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-11-12 23:37:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:37:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:37:53,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:37:53,851 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-11-12 23:37:53,913 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-12 23:38:03,391 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-12 23:38:03,391 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-12 23:38:03,435 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:38:03,435 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-12 23:38:03,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:38:03 BoogieIcfgContainer [2021-11-12 23:38:03,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:38:03,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:38:03,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:38:03,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:38:03,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:37:51" (1/3) ... [2021-11-12 23:38:03,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4432ea59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:38:03, skipping insertion in model container [2021-11-12 23:38:03,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:37:52" (2/3) ... [2021-11-12 23:38:03,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4432ea59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:38:03, skipping insertion in model container [2021-11-12 23:38:03,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:38:03" (3/3) ... [2021-11-12 23:38:03,453 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-input-tablet-kbtab.ko.cil.out.i [2021-11-12 23:38:03,460 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:38:03,460 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:38:03,524 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:38:03,531 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:38:03,532 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:38:03,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 119 states have (on average 1.3277310924369747) internal successors, (158), 127 states have internal predecessors, (158), 29 states have call successors, (29), 14 states have call predecessors, (29), 13 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-11-12 23:38:03,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-12 23:38:03,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:03,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:03,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:03,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:03,570 INFO L85 PathProgramCache]: Analyzing trace with hash 567277314, now seen corresponding path program 1 times [2021-11-12 23:38:03,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:03,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461668488] [2021-11-12 23:38:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:03,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:03,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:03,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:03,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:38:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:04,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:38:04,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:38:04,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:38:04,345 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:04,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461668488] [2021-11-12 23:38:04,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461668488] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:04,349 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:04,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-12 23:38:04,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176689963] [2021-11-12 23:38:04,353 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:04,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:38:04,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:04,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:38:04,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:38:04,403 INFO L87 Difference]: Start difference. First operand has 163 states, 119 states have (on average 1.3277310924369747) internal successors, (158), 127 states have internal predecessors, (158), 29 states have call successors, (29), 14 states have call predecessors, (29), 13 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:38:04,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:04,568 INFO L93 Difference]: Finished difference Result 447 states and 604 transitions. [2021-11-12 23:38:04,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:38:04,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-11-12 23:38:04,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:04,596 INFO L225 Difference]: With dead ends: 447 [2021-11-12 23:38:04,611 INFO L226 Difference]: Without dead ends: 287 [2021-11-12 23:38:04,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:38:04,621 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 177 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.08ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:04,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 408 Invalid, 10 Unknown, 0 Unchecked, 12.08ms Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 30.80ms Time] [2021-11-12 23:38:04,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-12 23:38:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2021-11-12 23:38:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 210 states have (on average 1.2190476190476192) internal successors, (256), 214 states have internal predecessors, (256), 49 states have call successors, (49), 24 states have call predecessors, (49), 23 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-11-12 23:38:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 350 transitions. [2021-11-12 23:38:04,732 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 350 transitions. Word has length 17 [2021-11-12 23:38:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:04,733 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 350 transitions. [2021-11-12 23:38:04,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:38:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 350 transitions. [2021-11-12 23:38:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-12 23:38:04,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:04,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:04,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:04,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:04,955 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash 405605840, now seen corresponding path program 1 times [2021-11-12 23:38:04,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:04,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508004471] [2021-11-12 23:38:04,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:04,957 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:04,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:04,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:04,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:38:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:05,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:38:05,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:38:05,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:05,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:38:05,539 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:05,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508004471] [2021-11-12 23:38:05,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508004471] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:05,540 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:05,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-12 23:38:05,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747154929] [2021-11-12 23:38:05,540 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:05,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:38:05,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:05,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:38:05,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:38:05,543 INFO L87 Difference]: Start difference. First operand 283 states and 350 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:38:05,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:05,637 INFO L93 Difference]: Finished difference Result 820 states and 1021 transitions. [2021-11-12 23:38:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:38:05,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2021-11-12 23:38:05,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:05,649 INFO L225 Difference]: With dead ends: 820 [2021-11-12 23:38:05,650 INFO L226 Difference]: Without dead ends: 542 [2021-11-12 23:38:05,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:38:05,658 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 167 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.89ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.97ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:05,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 417 Invalid, 8 Unknown, 0 Unchecked, 3.89ms Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 21.97ms Time] [2021-11-12 23:38:05,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-11-12 23:38:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 535. [2021-11-12 23:38:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 398 states have (on average 1.2110552763819096) internal successors, (482), 401 states have internal predecessors, (482), 92 states have call successors, (92), 45 states have call predecessors, (92), 44 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-12 23:38:05,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 662 transitions. [2021-11-12 23:38:05,769 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 662 transitions. Word has length 18 [2021-11-12 23:38:05,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:05,770 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 662 transitions. [2021-11-12 23:38:05,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-12 23:38:05,770 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 662 transitions. [2021-11-12 23:38:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-12 23:38:05,774 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:05,774 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:05,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:05,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:05,991 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:05,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash -447516912, now seen corresponding path program 1 times [2021-11-12 23:38:05,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:05,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678740083] [2021-11-12 23:38:05,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:05,994 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:05,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:06,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:06,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:38:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:06,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:38:06,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:06,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:38:06,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:38:06,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:06,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678740083] [2021-11-12 23:38:06,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678740083] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:06,919 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:06,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-12 23:38:06,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647089086] [2021-11-12 23:38:06,920 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:06,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:38:06,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:06,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:38:06,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:38:06,922 INFO L87 Difference]: Start difference. First operand 535 states and 662 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 23:38:07,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:07,075 INFO L93 Difference]: Finished difference Result 1062 states and 1315 transitions. [2021-11-12 23:38:07,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:38:07,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2021-11-12 23:38:07,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:07,082 INFO L225 Difference]: With dead ends: 1062 [2021-11-12 23:38:07,082 INFO L226 Difference]: Without dead ends: 535 [2021-11-12 23:38:07,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:38:07,089 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 2 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.93ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:07,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 913 Invalid, 16 Unknown, 0 Unchecked, 6.24ms Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 62.93ms Time] [2021-11-12 23:38:07,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-12 23:38:07,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2021-11-12 23:38:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 398 states have (on average 1.2085427135678393) internal successors, (481), 401 states have internal predecessors, (481), 92 states have call successors, (92), 45 states have call predecessors, (92), 44 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-12 23:38:07,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 661 transitions. [2021-11-12 23:38:07,156 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 661 transitions. Word has length 51 [2021-11-12 23:38:07,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:07,156 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 661 transitions. [2021-11-12 23:38:07,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 23:38:07,157 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 661 transitions. [2021-11-12 23:38:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-12 23:38:07,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:07,162 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:07,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:07,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:07,378 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:07,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:07,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1798062542, now seen corresponding path program 1 times [2021-11-12 23:38:07,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:07,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779577602] [2021-11-12 23:38:07,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:07,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:07,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:07,384 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:07,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:38:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:07,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:38:07,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:38:07,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:08,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:38:08,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:08,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779577602] [2021-11-12 23:38:08,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779577602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:08,156 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:08,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:38:08,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128339642] [2021-11-12 23:38:08,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:08,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:38:08,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:08,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:38:08,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:38:08,158 INFO L87 Difference]: Start difference. First operand 535 states and 661 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 23:38:08,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:08,304 INFO L93 Difference]: Finished difference Result 1129 states and 1427 transitions. [2021-11-12 23:38:08,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:38:08,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 51 [2021-11-12 23:38:08,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:08,311 INFO L225 Difference]: With dead ends: 1129 [2021-11-12 23:38:08,311 INFO L226 Difference]: Without dead ends: 606 [2021-11-12 23:38:08,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:38:08,318 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 66 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.30ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:08,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 403 Invalid, 27 Unknown, 0 Unchecked, 3.30ms Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 80.00ms Time] [2021-11-12 23:38:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-12 23:38:08,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2021-11-12 23:38:08,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 469 states have (on average 1.2409381663113006) internal successors, (582), 472 states have internal predecessors, (582), 92 states have call successors, (92), 45 states have call predecessors, (92), 44 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2021-11-12 23:38:08,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 762 transitions. [2021-11-12 23:38:08,381 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 762 transitions. Word has length 51 [2021-11-12 23:38:08,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:08,382 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 762 transitions. [2021-11-12 23:38:08,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 23:38:08,382 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 762 transitions. [2021-11-12 23:38:08,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-12 23:38:08,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:08,393 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 23:38:08,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:08,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:08,610 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:08,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:08,611 INFO L85 PathProgramCache]: Analyzing trace with hash -375859530, now seen corresponding path program 1 times [2021-11-12 23:38:08,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:08,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558900750] [2021-11-12 23:38:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:08,613 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:08,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:08,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:08,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:38:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:09,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:38:09,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:38:09,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-12 23:38:10,542 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:10,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558900750] [2021-11-12 23:38:10,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558900750] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:38:10,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1826428716] [2021-11-12 23:38:10,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:10,543 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:38:10,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:38:10,551 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:38:10,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-12 23:38:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:11,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:38:11,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:38:11,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-12 23:38:12,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1826428716] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:38:12,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20478720] [2021-11-12 23:38:12,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:12,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:38:12,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:38:12,754 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:38:12,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 23:38:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:13,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:38:13,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:13,582 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:38:13,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:14,323 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-12 23:38:14,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20478720] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:38:14,324 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:38:14,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 9 [2021-11-12 23:38:14,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565566604] [2021-11-12 23:38:14,364 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:38:14,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:38:14,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:38:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:38:14,366 INFO L87 Difference]: Start difference. First operand 606 states and 762 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:38:16,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:38:18,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:38:20,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:38:20,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:20,623 INFO L93 Difference]: Finished difference Result 1442 states and 1862 transitions. [2021-11-12 23:38:20,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:38:20,624 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 86 [2021-11-12 23:38:20,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:20,633 INFO L225 Difference]: With dead ends: 1442 [2021-11-12 23:38:20,633 INFO L226 Difference]: Without dead ends: 849 [2021-11-12 23:38:20,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:38:20,637 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 38 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6008.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.05ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6093.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:20,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 1650 Invalid, 59 Unknown, 0 Unchecked, 14.05ms Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 2 Unknown, 0 Unchecked, 6093.95ms Time] [2021-11-12 23:38:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2021-11-12 23:38:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 654. [2021-11-12 23:38:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 505 states have (on average 1.2237623762376237) internal successors, (618), 508 states have internal predecessors, (618), 96 states have call successors, (96), 45 states have call predecessors, (96), 52 states have return successors, (116), 100 states have call predecessors, (116), 92 states have call successors, (116) [2021-11-12 23:38:20,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 830 transitions. [2021-11-12 23:38:20,712 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 830 transitions. Word has length 86 [2021-11-12 23:38:20,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:20,713 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 830 transitions. [2021-11-12 23:38:20,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-12 23:38:20,713 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 830 transitions. [2021-11-12 23:38:20,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-12 23:38:20,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:20,716 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 23:38:20,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-12 23:38:20,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:21,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-12 23:38:21,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:38:21,335 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:21,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:21,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2111260245, now seen corresponding path program 1 times [2021-11-12 23:38:21,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:21,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956065861] [2021-11-12 23:38:21,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:21,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:21,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:21,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:21,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:38:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:21,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 23:38:21,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-12 23:38:22,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:23,139 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-12 23:38:23,139 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:23,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956065861] [2021-11-12 23:38:23,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956065861] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:38:23,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:38:23,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 10 [2021-11-12 23:38:23,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518622902] [2021-11-12 23:38:23,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:23,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:38:23,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:23,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:38:23,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:38:23,143 INFO L87 Difference]: Start difference. First operand 654 states and 830 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 23:38:24,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:38:26,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:38:27,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:27,090 INFO L93 Difference]: Finished difference Result 1729 states and 2265 transitions. [2021-11-12 23:38:27,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:38:27,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2021-11-12 23:38:27,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:27,101 INFO L225 Difference]: With dead ends: 1729 [2021-11-12 23:38:27,101 INFO L226 Difference]: Without dead ends: 1088 [2021-11-12 23:38:27,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:38:27,104 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 103 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3630.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.02ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3726.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:27,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 1977 Invalid, 90 Unknown, 0 Unchecked, 14.02ms Time], IncrementalHoareTripleChecker [15 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 3726.95ms Time] [2021-11-12 23:38:27,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2021-11-12 23:38:27,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 670. [2021-11-12 23:38:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 521 states have (on average 1.2245681381957774) internal successors, (638), 520 states have internal predecessors, (638), 96 states have call successors, (96), 45 states have call predecessors, (96), 52 states have return successors, (116), 104 states have call predecessors, (116), 92 states have call successors, (116) [2021-11-12 23:38:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 850 transitions. [2021-11-12 23:38:27,170 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 850 transitions. Word has length 86 [2021-11-12 23:38:27,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:27,171 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 850 transitions. [2021-11-12 23:38:27,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-12 23:38:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 850 transitions. [2021-11-12 23:38:27,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-12 23:38:27,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:27,174 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 23:38:27,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:27,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:27,391 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:27,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:27,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2103500886, now seen corresponding path program 2 times [2021-11-12 23:38:27,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:27,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050676701] [2021-11-12 23:38:27,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:38:27,393 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:27,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:27,394 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:27,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:38:29,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:38:29,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:38:29,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:38:29,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 23:38:29,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:38:29,812 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:29,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050676701] [2021-11-12 23:38:29,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050676701] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:29,813 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:29,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:38:29,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050514487] [2021-11-12 23:38:29,813 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:29,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:38:29,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:29,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:38:29,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:38:29,815 INFO L87 Difference]: Start difference. First operand 670 states and 850 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 23:38:29,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:29,966 INFO L93 Difference]: Finished difference Result 1328 states and 1720 transitions. [2021-11-12 23:38:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:38:29,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2021-11-12 23:38:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:29,976 INFO L225 Difference]: With dead ends: 1328 [2021-11-12 23:38:29,976 INFO L226 Difference]: Without dead ends: 671 [2021-11-12 23:38:29,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:38:29,979 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 41 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.92ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.27ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:29,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 677 Invalid, 12 Unknown, 0 Unchecked, 2.92ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 67.27ms Time] [2021-11-12 23:38:29,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2021-11-12 23:38:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 474. [2021-11-12 23:38:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 370 states have (on average 1.2162162162162162) internal successors, (450), 370 states have internal predecessors, (450), 65 states have call successors, (65), 33 states have call predecessors, (65), 38 states have return successors, (79), 70 states have call predecessors, (79), 61 states have call successors, (79) [2021-11-12 23:38:30,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 594 transitions. [2021-11-12 23:38:30,032 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 594 transitions. Word has length 86 [2021-11-12 23:38:30,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:30,034 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 594 transitions. [2021-11-12 23:38:30,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-12 23:38:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 594 transitions. [2021-11-12 23:38:30,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-12 23:38:30,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:30,042 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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] [2021-11-12 23:38:30,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:30,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:30,265 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:30,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2034337337, now seen corresponding path program 1 times [2021-11-12 23:38:30,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:30,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237427406] [2021-11-12 23:38:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:30,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:30,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:30,268 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:30,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:38:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:30,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 23:38:30,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:38:31,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:38:31,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:31,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237427406] [2021-11-12 23:38:31,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [237427406] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:31,458 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:31,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-12 23:38:31,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754876630] [2021-11-12 23:38:31,459 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:31,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:38:31,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:31,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:38:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:38:31,460 INFO L87 Difference]: Start difference. First operand 474 states and 594 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 23:38:31,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:31,594 INFO L93 Difference]: Finished difference Result 1028 states and 1335 transitions. [2021-11-12 23:38:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:38:31,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2021-11-12 23:38:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:31,601 INFO L225 Difference]: With dead ends: 1028 [2021-11-12 23:38:31,601 INFO L226 Difference]: Without dead ends: 686 [2021-11-12 23:38:31,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:38:31,603 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 43 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.65ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:31,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 1402 Invalid, 24 Unknown, 0 Unchecked, 4.65ms Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 76.20ms Time] [2021-11-12 23:38:31,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-11-12 23:38:31,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 489. [2021-11-12 23:38:31,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 382 states have (on average 1.2094240837696335) internal successors, (462), 379 states have internal predecessors, (462), 65 states have call successors, (65), 33 states have call predecessors, (65), 41 states have return successors, (84), 76 states have call predecessors, (84), 61 states have call successors, (84) [2021-11-12 23:38:31,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 611 transitions. [2021-11-12 23:38:31,647 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 611 transitions. Word has length 83 [2021-11-12 23:38:31,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:31,647 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 611 transitions. [2021-11-12 23:38:31,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 23:38:31,648 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 611 transitions. [2021-11-12 23:38:31,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-12 23:38:31,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:31,650 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 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] [2021-11-12 23:38:31,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:31,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:31,876 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:31,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:31,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2045653464, now seen corresponding path program 1 times [2021-11-12 23:38:31,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:31,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775700410] [2021-11-12 23:38:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:31,878 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:31,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:31,878 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:31,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:38:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:32,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:38:32,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:38:32,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:38:32,925 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:32,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775700410] [2021-11-12 23:38:32,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775700410] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:32,925 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:32,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-12 23:38:32,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995968794] [2021-11-12 23:38:32,925 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:32,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:38:32,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:32,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:38:32,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:38:32,926 INFO L87 Difference]: Start difference. First operand 489 states and 611 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 23:38:33,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:33,314 INFO L93 Difference]: Finished difference Result 1100 states and 1407 transitions. [2021-11-12 23:38:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:38:33,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2021-11-12 23:38:33,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:33,320 INFO L225 Difference]: With dead ends: 1100 [2021-11-12 23:38:33,320 INFO L226 Difference]: Without dead ends: 624 [2021-11-12 23:38:33,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:38:33,325 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 145 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 218.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.61ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 254.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:33,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 1747 Invalid, 86 Unknown, 0 Unchecked, 6.61ms Time], IncrementalHoareTripleChecker [37 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 254.81ms Time] [2021-11-12 23:38:33,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2021-11-12 23:38:33,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 487. [2021-11-12 23:38:33,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 380 states have (on average 1.1973684210526316) internal successors, (455), 378 states have internal predecessors, (455), 65 states have call successors, (65), 33 states have call predecessors, (65), 41 states have return successors, (84), 75 states have call predecessors, (84), 61 states have call successors, (84) [2021-11-12 23:38:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 604 transitions. [2021-11-12 23:38:33,368 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 604 transitions. Word has length 83 [2021-11-12 23:38:33,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:33,370 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 604 transitions. [2021-11-12 23:38:33,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-12 23:38:33,370 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 604 transitions. [2021-11-12 23:38:33,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-12 23:38:33,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:33,372 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 23:38:33,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:33,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:33,591 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:33,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:33,591 INFO L85 PathProgramCache]: Analyzing trace with hash -18136427, now seen corresponding path program 1 times [2021-11-12 23:38:33,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:33,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878275174] [2021-11-12 23:38:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:33,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:33,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:33,594 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:33,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 23:38:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:34,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:38:34,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 23:38:34,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:38:34,962 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:34,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878275174] [2021-11-12 23:38:34,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878275174] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:38:34,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:38:34,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2021-11-12 23:38:34,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586997113] [2021-11-12 23:38:34,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:34,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:38:34,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:34,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:38:34,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:38:34,964 INFO L87 Difference]: Start difference. First operand 487 states and 604 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-12 23:38:35,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:35,978 INFO L93 Difference]: Finished difference Result 1119 states and 1396 transitions. [2021-11-12 23:38:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:38:35,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 86 [2021-11-12 23:38:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:35,987 INFO L225 Difference]: With dead ends: 1119 [2021-11-12 23:38:35,988 INFO L226 Difference]: Without dead ends: 1116 [2021-11-12 23:38:35,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:38:35,989 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 268 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 796.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.47ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 892.77ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:35,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 626 Invalid, 109 Unknown, 0 Unchecked, 4.47ms Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 892.77ms Time] [2021-11-12 23:38:35,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-11-12 23:38:36,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1059. [2021-11-12 23:38:36,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 830 states have (on average 1.2084337349397591) internal successors, (1003), 820 states have internal predecessors, (1003), 137 states have call successors, (137), 71 states have call predecessors, (137), 91 states have return successors, (194), 167 states have call predecessors, (194), 133 states have call successors, (194) [2021-11-12 23:38:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1334 transitions. [2021-11-12 23:38:36,087 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1334 transitions. Word has length 86 [2021-11-12 23:38:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:36,088 INFO L470 AbstractCegarLoop]: Abstraction has 1059 states and 1334 transitions. [2021-11-12 23:38:36,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-12 23:38:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1334 transitions. [2021-11-12 23:38:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-12 23:38:36,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:36,090 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2021-11-12 23:38:36,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:36,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:36,311 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:36,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:36,311 INFO L85 PathProgramCache]: Analyzing trace with hash -604314367, now seen corresponding path program 1 times [2021-11-12 23:38:36,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:36,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874918382] [2021-11-12 23:38:36,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:36,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:36,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:36,314 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:36,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:38:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:36,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:38:36,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-12 23:38:37,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 23:38:37,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:37,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874918382] [2021-11-12 23:38:37,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874918382] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:37,362 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:37,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:38:37,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085851831] [2021-11-12 23:38:37,364 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:37,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:38:37,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:38:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:38:37,365 INFO L87 Difference]: Start difference. First operand 1059 states and 1334 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:38:38,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:38,224 INFO L93 Difference]: Finished difference Result 2062 states and 2592 transitions. [2021-11-12 23:38:38,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 23:38:38,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 96 [2021-11-12 23:38:38,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:38,232 INFO L225 Difference]: With dead ends: 2062 [2021-11-12 23:38:38,232 INFO L226 Difference]: Without dead ends: 983 [2021-11-12 23:38:38,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:38:38,238 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 142 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 617.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.44ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 659.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:38,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 878 Invalid, 60 Unknown, 0 Unchecked, 3.44ms Time], IncrementalHoareTripleChecker [18 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 659.30ms Time] [2021-11-12 23:38:38,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2021-11-12 23:38:38,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 864. [2021-11-12 23:38:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 673 states have (on average 1.1916790490341753) internal successors, (802), 669 states have internal predecessors, (802), 116 states have call successors, (116), 55 states have call predecessors, (116), 74 states have return successors, (164), 139 states have call predecessors, (164), 112 states have call successors, (164) [2021-11-12 23:38:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1082 transitions. [2021-11-12 23:38:38,343 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1082 transitions. Word has length 96 [2021-11-12 23:38:38,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:38,344 INFO L470 AbstractCegarLoop]: Abstraction has 864 states and 1082 transitions. [2021-11-12 23:38:38,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-12 23:38:38,344 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1082 transitions. [2021-11-12 23:38:38,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-12 23:38:38,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:38,346 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2021-11-12 23:38:38,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:38,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:38,562 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:38,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash -841808268, now seen corresponding path program 1 times [2021-11-12 23:38:38,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:38,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329052084] [2021-11-12 23:38:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:38,564 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:38,565 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:38,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:38:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:39,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 23:38:39,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:39,375 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 23:38:39,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:39,827 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 23:38:39,828 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:39,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329052084] [2021-11-12 23:38:39,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329052084] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:39,828 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:39,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-12 23:38:39,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016980820] [2021-11-12 23:38:39,828 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:39,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:38:39,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:39,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:38:39,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:38:39,830 INFO L87 Difference]: Start difference. First operand 864 states and 1082 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 23:38:40,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:40,017 INFO L93 Difference]: Finished difference Result 1539 states and 1979 transitions. [2021-11-12 23:38:40,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:38:40,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2021-11-12 23:38:40,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:40,026 INFO L225 Difference]: With dead ends: 1539 [2021-11-12 23:38:40,027 INFO L226 Difference]: Without dead ends: 1125 [2021-11-12 23:38:40,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:38:40,030 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 75 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.80ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.88ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:40,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 1415 Invalid, 25 Unknown, 0 Unchecked, 4.80ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 83.88ms Time] [2021-11-12 23:38:40,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-11-12 23:38:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 872. [2021-11-12 23:38:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 681 states have (on average 1.1894273127753303) internal successors, (810), 673 states have internal predecessors, (810), 116 states have call successors, (116), 55 states have call predecessors, (116), 74 states have return successors, (164), 143 states have call predecessors, (164), 112 states have call successors, (164) [2021-11-12 23:38:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1090 transitions. [2021-11-12 23:38:40,134 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1090 transitions. Word has length 105 [2021-11-12 23:38:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:40,135 INFO L470 AbstractCegarLoop]: Abstraction has 872 states and 1090 transitions. [2021-11-12 23:38:40,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 23:38:40,135 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1090 transitions. [2021-11-12 23:38:40,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-12 23:38:40,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:40,137 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2021-11-12 23:38:40,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:40,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:40,350 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:40,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:40,351 INFO L85 PathProgramCache]: Analyzing trace with hash 790995731, now seen corresponding path program 1 times [2021-11-12 23:38:40,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:40,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218244816] [2021-11-12 23:38:40,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:40,352 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:40,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:40,354 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:40,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 23:38:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:40,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:38:40,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 23:38:41,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 23:38:41,586 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:41,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218244816] [2021-11-12 23:38:41,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218244816] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:41,586 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:41,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-12 23:38:41,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143927127] [2021-11-12 23:38:41,586 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:41,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:38:41,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:41,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:38:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:38:41,588 INFO L87 Difference]: Start difference. First operand 872 states and 1090 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 23:38:42,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:42,047 INFO L93 Difference]: Finished difference Result 1947 states and 2489 transitions. [2021-11-12 23:38:42,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:38:42,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 105 [2021-11-12 23:38:42,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:42,055 INFO L225 Difference]: With dead ends: 1947 [2021-11-12 23:38:42,056 INFO L226 Difference]: Without dead ends: 1121 [2021-11-12 23:38:42,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:38:42,060 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 145 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 241.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.99ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 274.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:42,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 2043 Invalid, 86 Unknown, 0 Unchecked, 5.99ms Time], IncrementalHoareTripleChecker [37 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 274.84ms Time] [2021-11-12 23:38:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2021-11-12 23:38:42,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 872. [2021-11-12 23:38:42,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 681 states have (on average 1.183553597650514) internal successors, (806), 675 states have internal predecessors, (806), 116 states have call successors, (116), 55 states have call predecessors, (116), 74 states have return successors, (164), 141 states have call predecessors, (164), 112 states have call successors, (164) [2021-11-12 23:38:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1086 transitions. [2021-11-12 23:38:42,161 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1086 transitions. Word has length 105 [2021-11-12 23:38:42,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:42,162 INFO L470 AbstractCegarLoop]: Abstraction has 872 states and 1086 transitions. [2021-11-12 23:38:42,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 7 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 23:38:42,162 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1086 transitions. [2021-11-12 23:38:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 23:38:42,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:42,165 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2021-11-12 23:38:42,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:42,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:42,386 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:42,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:42,386 INFO L85 PathProgramCache]: Analyzing trace with hash -601133856, now seen corresponding path program 1 times [2021-11-12 23:38:42,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:42,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530582202] [2021-11-12 23:38:42,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:42,387 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:42,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:42,388 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:42,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 23:38:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:42,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:38:42,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:43,054 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:38:43,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:38:43,287 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:43,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530582202] [2021-11-12 23:38:43,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530582202] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:43,288 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:43,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:38:43,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159533612] [2021-11-12 23:38:43,288 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:43,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:38:43,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:43,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:38:43,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:38:43,290 INFO L87 Difference]: Start difference. First operand 872 states and 1086 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:38:43,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:43,363 INFO L93 Difference]: Finished difference Result 1642 states and 2054 transitions. [2021-11-12 23:38:43,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:38:43,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2021-11-12 23:38:43,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:43,370 INFO L225 Difference]: With dead ends: 1642 [2021-11-12 23:38:43,370 INFO L226 Difference]: Without dead ends: 816 [2021-11-12 23:38:43,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:38:43,374 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 10 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:43,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 1.27ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.43ms Time] [2021-11-12 23:38:43,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2021-11-12 23:38:43,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 782. [2021-11-12 23:38:43,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 603 states have (on average 1.1774461028192371) internal successors, (710), 605 states have internal predecessors, (710), 110 states have call successors, (110), 53 states have call predecessors, (110), 68 states have return successors, (150), 123 states have call predecessors, (150), 106 states have call successors, (150) [2021-11-12 23:38:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 970 transitions. [2021-11-12 23:38:43,456 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 970 transitions. Word has length 106 [2021-11-12 23:38:43,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:43,456 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 970 transitions. [2021-11-12 23:38:43,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:38:43,457 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 970 transitions. [2021-11-12 23:38:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 23:38:43,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:43,459 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:43,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:43,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:43,674 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:43,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:43,675 INFO L85 PathProgramCache]: Analyzing trace with hash 897624677, now seen corresponding path program 1 times [2021-11-12 23:38:43,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:43,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442402871] [2021-11-12 23:38:43,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:43,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:43,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:43,677 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:43,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 23:38:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:44,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:38:44,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-12 23:38:44,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-12 23:38:45,322 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:45,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442402871] [2021-11-12 23:38:45,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442402871] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:38:45,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:38:45,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2021-11-12 23:38:45,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616554092] [2021-11-12 23:38:45,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:45,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:38:45,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:45,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:38:45,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:38:45,325 INFO L87 Difference]: Start difference. First operand 782 states and 970 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:38:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:47,010 INFO L93 Difference]: Finished difference Result 1284 states and 1576 transitions. [2021-11-12 23:38:47,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:38:47,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2021-11-12 23:38:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:47,019 INFO L225 Difference]: With dead ends: 1284 [2021-11-12 23:38:47,019 INFO L226 Difference]: Without dead ends: 1238 [2021-11-12 23:38:47,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:38:47,021 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 328 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1330.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.49ms SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1491.58ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:47,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 524 Invalid, 322 Unknown, 0 Unchecked, 7.49ms Time], IncrementalHoareTripleChecker [68 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1491.58ms Time] [2021-11-12 23:38:47,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2021-11-12 23:38:47,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1135. [2021-11-12 23:38:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 874 states have (on average 1.1784897025171626) internal successors, (1030), 877 states have internal predecessors, (1030), 159 states have call successors, (159), 77 states have call predecessors, (159), 101 states have return successors, (220), 180 states have call predecessors, (220), 154 states have call successors, (220) [2021-11-12 23:38:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1409 transitions. [2021-11-12 23:38:47,131 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1409 transitions. Word has length 108 [2021-11-12 23:38:47,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:47,131 INFO L470 AbstractCegarLoop]: Abstraction has 1135 states and 1409 transitions. [2021-11-12 23:38:47,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-11-12 23:38:47,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1409 transitions. [2021-11-12 23:38:47,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:38:47,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:47,134 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:47,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:47,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:47,354 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:47,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:47,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1647066880, now seen corresponding path program 1 times [2021-11-12 23:38:47,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:47,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695869734] [2021-11-12 23:38:47,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:47,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:47,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:47,357 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:47,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 23:38:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:48,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:38:48,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:48,398 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-12 23:38:48,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-12 23:38:48,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:48,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695869734] [2021-11-12 23:38:48,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695869734] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:48,658 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:48,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:38:48,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310237847] [2021-11-12 23:38:48,659 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:48,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:38:48,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:48,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:38:48,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:38:48,660 INFO L87 Difference]: Start difference. First operand 1135 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-12 23:38:48,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:48,786 INFO L93 Difference]: Finished difference Result 1816 states and 2248 transitions. [2021-11-12 23:38:48,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:38:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2021-11-12 23:38:48,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:48,791 INFO L225 Difference]: With dead ends: 1816 [2021-11-12 23:38:48,792 INFO L226 Difference]: Without dead ends: 685 [2021-11-12 23:38:48,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:38:48,796 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 13 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.53ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:48,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 586 Invalid, 10 Unknown, 0 Unchecked, 1.33ms Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 42.53ms Time] [2021-11-12 23:38:48,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-11-12 23:38:48,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 654. [2021-11-12 23:38:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 504 states have (on average 1.1626984126984128) internal successors, (586), 505 states have internal predecessors, (586), 91 states have call successors, (91), 45 states have call predecessors, (91), 58 states have return successors, (123), 103 states have call predecessors, (123), 87 states have call successors, (123) [2021-11-12 23:38:48,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 800 transitions. [2021-11-12 23:38:48,860 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 800 transitions. Word has length 116 [2021-11-12 23:38:48,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:48,860 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 800 transitions. [2021-11-12 23:38:48,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-12 23:38:48,861 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 800 transitions. [2021-11-12 23:38:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:38:48,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:48,863 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:48,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:49,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:49,076 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:49,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1887454015, now seen corresponding path program 1 times [2021-11-12 23:38:49,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:49,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163907947] [2021-11-12 23:38:49,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:49,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:49,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:49,078 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:49,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 23:38:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:49,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:38:49,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-12 23:38:50,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-12 23:38:50,905 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:50,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163907947] [2021-11-12 23:38:50,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163907947] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:50,905 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:50,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-12 23:38:50,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185924290] [2021-11-12 23:38:50,906 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:50,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:38:50,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:50,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:38:50,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:38:50,907 INFO L87 Difference]: Start difference. First operand 654 states and 800 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-12 23:38:52,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:52,809 INFO L93 Difference]: Finished difference Result 2397 states and 2908 transitions. [2021-11-12 23:38:52,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:38:52,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 116 [2021-11-12 23:38:52,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:52,830 INFO L225 Difference]: With dead ends: 2397 [2021-11-12 23:38:52,830 INFO L226 Difference]: Without dead ends: 2340 [2021-11-12 23:38:52,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:38:52,833 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 642 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1453.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.96ms SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1643.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:52,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [642 Valid, 1015 Invalid, 453 Unknown, 0 Unchecked, 8.96ms Time], IncrementalHoareTripleChecker [118 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 1643.19ms Time] [2021-11-12 23:38:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2021-11-12 23:38:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2127. [2021-11-12 23:38:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 1636 states have (on average 1.158924205378973) internal successors, (1896), 1634 states have internal predecessors, (1896), 286 states have call successors, (286), 143 states have call predecessors, (286), 204 states have return successors, (433), 349 states have call predecessors, (433), 282 states have call successors, (433) [2021-11-12 23:38:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2615 transitions. [2021-11-12 23:38:53,079 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2615 transitions. Word has length 116 [2021-11-12 23:38:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:53,080 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 2615 transitions. [2021-11-12 23:38:53,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 6 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2021-11-12 23:38:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2615 transitions. [2021-11-12 23:38:53,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-12 23:38:53,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:53,083 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:53,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:53,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:53,307 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:53,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:53,308 INFO L85 PathProgramCache]: Analyzing trace with hash 938799140, now seen corresponding path program 1 times [2021-11-12 23:38:53,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:53,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226838887] [2021-11-12 23:38:53,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:53,309 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:53,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:53,310 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:53,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 23:38:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:54,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:38:54,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:54,337 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:38:54,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:38:54,555 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:54,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226838887] [2021-11-12 23:38:54,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226838887] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:54,555 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:38:54,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-12 23:38:54,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961932111] [2021-11-12 23:38:54,555 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:54,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:38:54,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:54,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:38:54,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:38:54,556 INFO L87 Difference]: Start difference. First operand 2127 states and 2615 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-12 23:38:54,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:54,824 INFO L93 Difference]: Finished difference Result 2173 states and 2663 transitions. [2021-11-12 23:38:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:38:54,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2021-11-12 23:38:54,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:54,839 INFO L225 Difference]: With dead ends: 2173 [2021-11-12 23:38:54,839 INFO L226 Difference]: Without dead ends: 2154 [2021-11-12 23:38:54,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:38:54,841 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 199 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.29ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.21ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:54,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 382 Invalid, 30 Unknown, 0 Unchecked, 1.29ms Time], IncrementalHoareTripleChecker [16 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 95.21ms Time] [2021-11-12 23:38:54,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2021-11-12 23:38:55,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2127. [2021-11-12 23:38:55,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 1636 states have (on average 1.1534229828850855) internal successors, (1887), 1634 states have internal predecessors, (1887), 286 states have call successors, (286), 143 states have call predecessors, (286), 204 states have return successors, (433), 349 states have call predecessors, (433), 282 states have call successors, (433) [2021-11-12 23:38:55,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 2606 transitions. [2021-11-12 23:38:55,074 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 2606 transitions. Word has length 129 [2021-11-12 23:38:55,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:55,074 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 2606 transitions. [2021-11-12 23:38:55,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-12 23:38:55,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 2606 transitions. [2021-11-12 23:38:55,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-12 23:38:55,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:55,077 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:55,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:55,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:38:55,298 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:55,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash -702188261, now seen corresponding path program 1 times [2021-11-12 23:38:55,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:55,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395372770] [2021-11-12 23:38:55,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:55,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:55,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:55,302 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:55,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 23:38:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:56,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:38:56,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:38:56,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:38:57,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:38:57,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395372770] [2021-11-12 23:38:57,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395372770] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:38:57,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1877987526] [2021-11-12 23:38:57,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:57,060 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:38:57,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:38:57,078 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:38:57,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-12 23:38:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:38:57,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:38:57,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:38:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:38:58,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:38:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-12 23:38:58,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1877987526] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:38:58,497 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 23:38:58,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [4, 4] total 6 [2021-11-12 23:38:58,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465733159] [2021-11-12 23:38:58,497 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:38:58,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:38:58,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:38:58,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:38:58,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:38:58,499 INFO L87 Difference]: Start difference. First operand 2127 states and 2606 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-12 23:38:58,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:38:58,804 INFO L93 Difference]: Finished difference Result 2195 states and 2669 transitions. [2021-11-12 23:38:58,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:38:58,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 133 [2021-11-12 23:38:58,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:38:58,811 INFO L225 Difference]: With dead ends: 2195 [2021-11-12 23:38:58,811 INFO L226 Difference]: Without dead ends: 883 [2021-11-12 23:38:58,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:38:58,815 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 50 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 166.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.18ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 187.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:38:58,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 650 Invalid, 61 Unknown, 0 Unchecked, 2.18ms Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 187.00ms Time] [2021-11-12 23:38:58,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-11-12 23:38:58,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2021-11-12 23:38:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 674 states have (on average 1.1112759643916914) internal successors, (749), 670 states have internal predecessors, (749), 117 states have call successors, (117), 65 states have call predecessors, (117), 91 states have return successors, (166), 147 states have call predecessors, (166), 115 states have call successors, (166) [2021-11-12 23:38:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1032 transitions. [2021-11-12 23:38:58,900 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1032 transitions. Word has length 133 [2021-11-12 23:38:58,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:38:58,903 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 1032 transitions. [2021-11-12 23:38:58,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-12 23:38:58,903 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1032 transitions. [2021-11-12 23:38:58,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-12 23:38:58,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:38:58,906 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:38:58,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:59,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2021-11-12 23:38:59,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:38:59,322 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:38:59,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:38:59,323 INFO L85 PathProgramCache]: Analyzing trace with hash -313806482, now seen corresponding path program 1 times [2021-11-12 23:38:59,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:38:59,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187035070] [2021-11-12 23:38:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:38:59,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:38:59,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:38:59,326 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:38:59,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 23:39:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:39:00,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:39:00,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:39:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-12 23:39:00,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:39:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-12 23:39:00,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:39:00,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187035070] [2021-11-12 23:39:00,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187035070] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:39:00,697 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:39:00,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:39:00,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301626913] [2021-11-12 23:39:00,697 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:39:00,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:39:00,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:39:00,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:39:00,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:39:00,698 INFO L87 Difference]: Start difference. First operand 883 states and 1032 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:39:00,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:39:00,737 INFO L93 Difference]: Finished difference Result 889 states and 1037 transitions. [2021-11-12 23:39:00,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:39:00,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2021-11-12 23:39:00,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:39:00,738 INFO L225 Difference]: With dead ends: 889 [2021-11-12 23:39:00,739 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:39:00,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:39:00,742 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 8 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:39:00,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 0.52ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 21.81ms Time] [2021-11-12 23:39:00,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:39:00,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:39:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:39:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:39:00,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 146 [2021-11-12 23:39:00,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:39:00,744 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:39:00,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:39:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:39:00,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:39:00,747 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 23:39:00,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-12 23:39:00,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:39:00,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:39:17,035 INFO L861 garLoopResultBuilder]: At program point L4257(lines 4256 4258) the Hoare annotation is: true [2021-11-12 23:39:17,035 INFO L858 garLoopResultBuilder]: For program point kbtab_initEXIT(lines 3909 3925) no Hoare annotation was computed. [2021-11-12 23:39:17,036 INFO L861 garLoopResultBuilder]: At program point L3922(lines 3911 3924) the Hoare annotation is: true [2021-11-12 23:39:17,036 INFO L861 garLoopResultBuilder]: At program point kbtab_initENTRY(lines 3909 3925) the Hoare annotation is: true [2021-11-12 23:39:17,036 INFO L861 garLoopResultBuilder]: At program point L3471(lines 3465 3473) the Hoare annotation is: true [2021-11-12 23:39:17,036 INFO L858 garLoopResultBuilder]: For program point L3915(lines 3915 3918) no Hoare annotation was computed. [2021-11-12 23:39:17,036 INFO L858 garLoopResultBuilder]: For program point kbtab_initFINAL(lines 3909 3925) no Hoare annotation was computed. [2021-11-12 23:39:17,037 INFO L858 garLoopResultBuilder]: For program point L4210-1(line 4210) no Hoare annotation was computed. [2021-11-12 23:39:17,037 INFO L858 garLoopResultBuilder]: For program point dev_get_drvdataFINAL(lines 4209 4211) no Hoare annotation was computed. [2021-11-12 23:39:17,037 INFO L861 garLoopResultBuilder]: At program point dev_get_drvdataENTRY(lines 4209 4211) the Hoare annotation is: true [2021-11-12 23:39:17,037 INFO L861 garLoopResultBuilder]: At program point L4210(line 4210) the Hoare annotation is: true [2021-11-12 23:39:17,037 INFO L858 garLoopResultBuilder]: For program point dev_get_drvdataEXIT(lines 4209 4211) no Hoare annotation was computed. [2021-11-12 23:39:17,037 INFO L858 garLoopResultBuilder]: For program point kfreeEXIT(lines 4264 4266) no Hoare annotation was computed. [2021-11-12 23:39:17,038 INFO L861 garLoopResultBuilder]: At program point kfreeENTRY(lines 4264 4266) the Hoare annotation is: true [2021-11-12 23:39:17,038 INFO L858 garLoopResultBuilder]: For program point kfreeFINAL(lines 4264 4266) no Hoare annotation was computed. [2021-11-12 23:39:17,038 INFO L858 garLoopResultBuilder]: For program point input_set_abs_paramsEXIT(lines 4226 4228) no Hoare annotation was computed. [2021-11-12 23:39:17,038 INFO L861 garLoopResultBuilder]: At program point input_set_abs_paramsENTRY(lines 4226 4228) the Hoare annotation is: true [2021-11-12 23:39:17,038 INFO L858 garLoopResultBuilder]: For program point input_set_abs_paramsFINAL(lines 4226 4228) no Hoare annotation was computed. [2021-11-12 23:39:17,038 INFO L858 garLoopResultBuilder]: For program point kbtab_exitFINAL(lines 3928 3936) no Hoare annotation was computed. [2021-11-12 23:39:17,039 INFO L861 garLoopResultBuilder]: At program point L4250(lines 4249 4251) the Hoare annotation is: true [2021-11-12 23:39:17,039 INFO L861 garLoopResultBuilder]: At program point kbtab_exitENTRY(lines 3928 3936) the Hoare annotation is: true [2021-11-12 23:39:17,039 INFO L858 garLoopResultBuilder]: For program point kbtab_exitEXIT(lines 3928 3936) no Hoare annotation was computed. [2021-11-12 23:39:17,039 INFO L861 garLoopResultBuilder]: At program point L4207(line 4207) the Hoare annotation is: true [2021-11-12 23:39:17,039 INFO L858 garLoopResultBuilder]: For program point L4207-1(line 4207) no Hoare annotation was computed. [2021-11-12 23:39:17,039 INFO L861 garLoopResultBuilder]: At program point L4207-2(lines 4206 4208) the Hoare annotation is: true [2021-11-12 23:39:17,040 INFO L858 garLoopResultBuilder]: For program point kzallocEXIT(lines 3405 3413) no Hoare annotation was computed. [2021-11-12 23:39:17,040 INFO L861 garLoopResultBuilder]: At program point L3401(lines 3394 3403) the Hoare annotation is: true [2021-11-12 23:39:17,040 INFO L861 garLoopResultBuilder]: At program point kzallocENTRY(lines 3405 3413) the Hoare annotation is: true [2021-11-12 23:39:17,040 INFO L858 garLoopResultBuilder]: For program point kzallocFINAL(lines 3405 3413) no Hoare annotation was computed. [2021-11-12 23:39:17,040 INFO L861 garLoopResultBuilder]: At program point ldv_assume_stopENTRY(lines 4055 4061) the Hoare annotation is: true [2021-11-12 23:39:17,040 INFO L858 garLoopResultBuilder]: For program point ldv_assume_stopEXIT(lines 4055 4061) no Hoare annotation was computed. [2021-11-12 23:39:17,041 INFO L854 garLoopResultBuilder]: At program point L4117(lines 4093 4122) the Hoare annotation is: (or (and (= ~ldv_coherent_state~0 (_ bv0 32)) (not (= (_ bv0 64) (bvadd usb_free_coherent_~addr.offset usb_free_coherent_~addr.base)))) (not (= |old(~ldv_coherent_state~0)| (_ bv1 32))) (not (= ~ldv_urb_state~0 (_ bv0 32)))) [2021-11-12 23:39:17,041 INFO L854 garLoopResultBuilder]: At program point usb_free_coherentENTRY(lines 4093 4122) the Hoare annotation is: (or (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= |old(~ldv_coherent_state~0)| (_ bv1 32))) (not (= ~ldv_urb_state~0 (_ bv0 32)))) [2021-11-12 23:39:17,041 INFO L858 garLoopResultBuilder]: For program point L4109-1(lines 4106 4111) no Hoare annotation was computed. [2021-11-12 23:39:17,041 INFO L854 garLoopResultBuilder]: At program point L4109(line 4109) the Hoare annotation is: (or (not (= |old(~ldv_coherent_state~0)| (_ bv1 32))) (not (= ~ldv_urb_state~0 (_ bv0 32)))) [2021-11-12 23:39:17,041 INFO L858 garLoopResultBuilder]: For program point usb_free_coherentEXIT(lines 4093 4122) no Hoare annotation was computed. [2021-11-12 23:39:17,041 INFO L861 garLoopResultBuilder]: At program point L4101(line 4101) the Hoare annotation is: true [2021-11-12 23:39:17,042 INFO L858 garLoopResultBuilder]: For program point L4099(lines 4097 4116) no Hoare annotation was computed. [2021-11-12 23:39:17,042 INFO L854 garLoopResultBuilder]: At program point L4097loopEntry(lines 4097 4116) the Hoare annotation is: (or (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= |old(~ldv_coherent_state~0)| (_ bv1 32))) (not (= ~ldv_urb_state~0 (_ bv0 32)))) [2021-11-12 23:39:17,042 INFO L858 garLoopResultBuilder]: For program point L4106(lines 4106 4111) no Hoare annotation was computed. [2021-11-12 23:39:17,042 INFO L858 garLoopResultBuilder]: For program point L4098(lines 4097 4116) no Hoare annotation was computed. [2021-11-12 23:39:17,042 INFO L858 garLoopResultBuilder]: For program point L3437-1(line 3437) no Hoare annotation was computed. [2021-11-12 23:39:17,043 INFO L861 garLoopResultBuilder]: At program point L3437(line 3437) the Hoare annotation is: true [2021-11-12 23:39:17,043 INFO L861 garLoopResultBuilder]: At program point usb_set_intfdataENTRY(lines 3433 3441) the Hoare annotation is: true [2021-11-12 23:39:17,043 INFO L858 garLoopResultBuilder]: For program point usb_set_intfdataFINAL(lines 3433 3441) no Hoare annotation was computed. [2021-11-12 23:39:17,043 INFO L858 garLoopResultBuilder]: For program point usb_set_intfdataEXIT(lines 3433 3441) no Hoare annotation was computed. [2021-11-12 23:39:17,043 INFO L858 garLoopResultBuilder]: For program point L4239(line 4239) no Hoare annotation was computed. [2021-11-12 23:39:17,043 INFO L858 garLoopResultBuilder]: For program point ldv_undefined_pointerFINAL(lines 4238 4240) no Hoare annotation was computed. [2021-11-12 23:39:17,043 INFO L861 garLoopResultBuilder]: At program point ldv_undefined_pointerENTRY(lines 4238 4240) the Hoare annotation is: true [2021-11-12 23:39:17,044 INFO L858 garLoopResultBuilder]: For program point ldv_undefined_pointerEXIT(lines 4238 4240) no Hoare annotation was computed. [2021-11-12 23:39:17,044 INFO L861 garLoopResultBuilder]: At program point L4158(line 4158) the Hoare annotation is: true [2021-11-12 23:39:17,044 INFO L858 garLoopResultBuilder]: For program point L4156(lines 4154 4173) no Hoare annotation was computed. [2021-11-12 23:39:17,044 INFO L854 garLoopResultBuilder]: At program point L4154loopEntry(lines 4154 4173) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 (_ bv1 32))) (not (= |old(~ldv_urb_state~0)| (_ bv1 32))) (= ~ldv_urb_state~0 (_ bv1 32)) (not (= ~res_kbtab_probe_3~0 (_ bv0 32)))) [2021-11-12 23:39:17,044 INFO L858 garLoopResultBuilder]: For program point usb_free_urbEXIT(lines 4150 4179) no Hoare annotation was computed. [2021-11-12 23:39:17,045 INFO L854 garLoopResultBuilder]: At program point usb_free_urbENTRY(lines 4150 4179) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 (_ bv1 32))) (not (= |old(~ldv_urb_state~0)| (_ bv1 32))) (= ~ldv_urb_state~0 (_ bv1 32)) (not (= ~res_kbtab_probe_3~0 (_ bv0 32)))) [2021-11-12 23:39:17,045 INFO L858 garLoopResultBuilder]: For program point L4163(lines 4163 4168) no Hoare annotation was computed. [2021-11-12 23:39:17,045 INFO L858 garLoopResultBuilder]: For program point L4155(lines 4154 4173) no Hoare annotation was computed. [2021-11-12 23:39:17,045 INFO L854 garLoopResultBuilder]: At program point L4174(lines 4150 4179) the Hoare annotation is: (or (and (not (= (_ bv0 64) (bvadd usb_free_urb_~urb.base usb_free_urb_~urb.offset))) (= ~ldv_urb_state~0 (_ bv0 32))) (not (= ~ldv_coherent_state~0 (_ bv1 32))) (not (= |old(~ldv_urb_state~0)| (_ bv1 32))) (not (= ~res_kbtab_probe_3~0 (_ bv0 32)))) [2021-11-12 23:39:17,045 INFO L854 garLoopResultBuilder]: At program point L4166(line 4166) the Hoare annotation is: (or (not (= ~ldv_coherent_state~0 (_ bv1 32))) (not (= |old(~ldv_urb_state~0)| (_ bv1 32))) (not (= ~res_kbtab_probe_3~0 (_ bv0 32)))) [2021-11-12 23:39:17,045 INFO L858 garLoopResultBuilder]: For program point L4166-1(lines 4163 4168) no Hoare annotation was computed. [2021-11-12 23:39:17,046 INFO L861 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 4201 4205) the Hoare annotation is: true [2021-11-12 23:39:17,046 INFO L858 garLoopResultBuilder]: For program point L4203(line 4203) no Hoare annotation was computed. [2021-11-12 23:39:17,046 INFO L858 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 4201 4205) no Hoare annotation was computed. [2021-11-12 23:39:17,046 INFO L858 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 4201 4205) no Hoare annotation was computed. [2021-11-12 23:39:17,046 INFO L854 garLoopResultBuilder]: At program point L4032(lines 3979 4033) the Hoare annotation is: (and (= ~ldv_coherent_state~0 (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,046 INFO L858 garLoopResultBuilder]: For program point L3487(lines 3487 3494) no Hoare annotation was computed. [2021-11-12 23:39:17,047 INFO L854 garLoopResultBuilder]: At program point L3867(lines 3793 3873) the Hoare annotation is: (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,047 INFO L854 garLoopResultBuilder]: At program point L4247(lines 4246 4248) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,047 INFO L854 garLoopResultBuilder]: At program point L3884(line 3884) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-12 23:39:17,047 INFO L858 garLoopResultBuilder]: For program point L3851(lines 3851 3854) no Hoare annotation was computed. [2021-11-12 23:39:17,047 INFO L858 garLoopResultBuilder]: For program point L3884-1(line 3884) no Hoare annotation was computed. [2021-11-12 23:39:17,047 INFO L858 garLoopResultBuilder]: For program point L4132(line 4132) no Hoare annotation was computed. [2021-11-12 23:39:17,047 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:39:17,047 INFO L858 garLoopResultBuilder]: For program point L3802(lines 3802 3808) no Hoare annotation was computed. [2021-11-12 23:39:17,048 INFO L854 garLoopResultBuilder]: At program point L3852(lines 3793 3873) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,048 INFO L858 garLoopResultBuilder]: For program point L3885-1(line 3885) no Hoare annotation was computed. [2021-11-12 23:39:17,048 INFO L854 garLoopResultBuilder]: At program point L3885(line 3885) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,048 INFO L858 garLoopResultBuilder]: For program point L3456(lines 3456 3460) no Hoare annotation was computed. [2021-11-12 23:39:17,048 INFO L858 garLoopResultBuilder]: For program point L3456-2(lines 3456 3460) no Hoare annotation was computed. [2021-11-12 23:39:17,048 INFO L858 garLoopResultBuilder]: For program point L3985(lines 3985 3990) no Hoare annotation was computed. [2021-11-12 23:39:17,048 INFO L854 garLoopResultBuilder]: At program point L3886(line 3886) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,048 INFO L858 garLoopResultBuilder]: For program point L3820(lines 3820 3823) no Hoare annotation was computed. [2021-11-12 23:39:17,048 INFO L854 garLoopResultBuilder]: At program point L3886-1(lines 3875 3890) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,048 INFO L854 garLoopResultBuilder]: At program point L4233(lines 4232 4234) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32))) (.cse2 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse0 (= ~res_kbtab_probe_3~0 (_ bv0 32)))) (or (and .cse0 .cse1 (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) .cse2) (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (not .cse1) .cse2 (not .cse0) (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-12 23:39:17,048 INFO L858 garLoopResultBuilder]: For program point L3490(lines 3490 3494) no Hoare annotation was computed. [2021-11-12 23:39:17,048 INFO L858 garLoopResultBuilder]: For program point L3490-2(lines 3487 3494) no Hoare annotation was computed. [2021-11-12 23:39:17,049 INFO L854 garLoopResultBuilder]: At program point L3870(line 3870) the Hoare annotation is: (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,049 INFO L858 garLoopResultBuilder]: For program point L3870-1(line 3870) no Hoare annotation was computed. [2021-11-12 23:39:17,049 INFO L858 garLoopResultBuilder]: For program point L4184(lines 4184 4189) no Hoare annotation was computed. [2021-11-12 23:39:17,049 INFO L858 garLoopResultBuilder]: For program point L4135(lines 4135 4138) no Hoare annotation was computed. [2021-11-12 23:39:17,049 INFO L858 garLoopResultBuilder]: For program point L3805(lines 3805 3808) no Hoare annotation was computed. [2021-11-12 23:39:17,049 INFO L858 garLoopResultBuilder]: For program point L4086(lines 4071 4087) no Hoare annotation was computed. [2021-11-12 23:39:17,049 INFO L858 garLoopResultBuilder]: For program point L3987-1(lines 3985 3990) no Hoare annotation was computed. [2021-11-12 23:39:17,049 INFO L858 garLoopResultBuilder]: For program point L3987(lines 3987 3990) no Hoare annotation was computed. [2021-11-12 23:39:17,049 INFO L854 garLoopResultBuilder]: At program point L4037(lines 3968 4044) the Hoare annotation is: (and (= ~ldv_coherent_state~0 (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,049 INFO L854 garLoopResultBuilder]: At program point L3426(line 3426) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-12 23:39:17,049 INFO L854 garLoopResultBuilder]: At program point L3872(lines 3782 3874) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32))) (.cse1 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)))) (or (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) .cse0 (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) .cse1) (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (not .cse0) .cse1 (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-12 23:39:17,049 INFO L858 garLoopResultBuilder]: For program point L3426-1(line 3426) no Hoare annotation was computed. [2021-11-12 23:39:17,050 INFO L854 garLoopResultBuilder]: At program point L3839-1(line 3839) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,050 INFO L854 garLoopResultBuilder]: At program point L3839(line 3839) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,050 INFO L854 garLoopResultBuilder]: At program point L3509(lines 3506 3511) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,050 INFO L854 garLoopResultBuilder]: At program point L3856(line 3856) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,050 INFO L858 garLoopResultBuilder]: For program point L3856-1(line 3856) no Hoare annotation was computed. [2021-11-12 23:39:17,050 INFO L854 garLoopResultBuilder]: At program point L4236(lines 4235 4237) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,050 INFO L854 garLoopResultBuilder]: At program point L3972(line 3972) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,050 INFO L858 garLoopResultBuilder]: For program point L3972-1(line 3972) no Hoare annotation was computed. [2021-11-12 23:39:17,050 INFO L854 garLoopResultBuilder]: At program point L3840(line 3840) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,050 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:39:17,050 INFO L858 garLoopResultBuilder]: For program point L4187-1(lines 4183 4197) no Hoare annotation was computed. [2021-11-12 23:39:17,051 INFO L854 garLoopResultBuilder]: At program point L4220(lines 4219 4221) the Hoare annotation is: (and (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,051 INFO L854 garLoopResultBuilder]: At program point L4187(line 4187) the Hoare annotation is: false [2021-11-12 23:39:17,051 INFO L854 garLoopResultBuilder]: At program point L3576(lines 3569 3578) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,051 INFO L854 garLoopResultBuilder]: At program point L4072loopEntry(lines 4072 4085) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,051 INFO L854 garLoopResultBuilder]: At program point L3428(lines 3422 3430) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-12 23:39:17,051 INFO L854 garLoopResultBuilder]: At program point L3461(lines 3449 3463) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,051 INFO L858 garLoopResultBuilder]: For program point L3841(line 3841) no Hoare annotation was computed. [2021-11-12 23:39:17,052 INFO L854 garLoopResultBuilder]: At program point L4089(lines 4066 4091) the Hoare annotation is: (let ((.cse1 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (.cse0 (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32)))) (.cse2 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (.cse3 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse4 (= ~ldv_urb_state~0 (_ bv0 32)))) (or (and (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.offset|) .cse0 (= ~ldv_coherent_state~0 (_ bv0 32)) .cse1 .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.offset|) .cse4) (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not .cse1) .cse0 (= ~ldv_coherent_state~0 (_ bv1 32)) (not .cse2) .cse3 .cse4))) [2021-11-12 23:39:17,052 INFO L854 garLoopResultBuilder]: At program point L4073(line 4073) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,052 INFO L858 garLoopResultBuilder]: For program point L3974(lines 3974 3977) no Hoare annotation was computed. [2021-11-12 23:39:17,052 INFO L854 garLoopResultBuilder]: At program point L3446(lines 3442 3448) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,052 INFO L858 garLoopResultBuilder]: For program point L3529-1(line 3529) no Hoare annotation was computed. [2021-11-12 23:39:17,052 INFO L854 garLoopResultBuilder]: At program point L3496(lines 3475 3498) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,052 INFO L858 garLoopResultBuilder]: For program point L4008(lines 4008 4011) no Hoare annotation was computed. [2021-11-12 23:39:17,052 INFO L854 garLoopResultBuilder]: At program point L3529(line 3529) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,052 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:39:17,052 INFO L858 garLoopResultBuilder]: For program point L3513-1(line 3513) no Hoare annotation was computed. [2021-11-12 23:39:17,052 INFO L854 garLoopResultBuilder]: At program point L3513(line 3513) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32)))) (.cse1 (= ~ldv_coherent_state~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse3 (= ~ldv_urb_state~0 (_ bv0 32)))) (or (and .cse0 .cse1 (= (_ bv0 64) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|)) (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3))) [2021-11-12 23:39:17,053 INFO L854 garLoopResultBuilder]: At program point L3513-2(lines 3512 3514) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32)))) (.cse1 (= ~ldv_coherent_state~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse3 (= ~ldv_urb_state~0 (_ bv0 32)))) (or (and .cse0 .cse1 (= (_ bv0 64) |ULTIMATE.start_input_allocate_device_#res#1.base|) .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_input_allocate_device_#res#1.offset|)) (and .cse0 .cse1 (= (_ bv0 64) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.base|) .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_kbtab_probe_~kbtab~3#1.offset|)) (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) .cse0 .cse1 .cse2 .cse3))) [2021-11-12 23:39:17,053 INFO L858 garLoopResultBuilder]: For program point L4075(line 4075) no Hoare annotation was computed. [2021-11-12 23:39:17,053 INFO L854 garLoopResultBuilder]: At program point L4224(lines 4223 4225) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,053 INFO L858 garLoopResultBuilder]: For program point L3861-1(line 3861) no Hoare annotation was computed. [2021-11-12 23:39:17,053 INFO L854 garLoopResultBuilder]: At program point L3861(line 3861) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,053 INFO L854 garLoopResultBuilder]: At program point L3531(lines 3525 3533) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= ~ldv_urb_state~0 (_ bv1 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) [2021-11-12 23:39:17,053 INFO L854 garLoopResultBuilder]: At program point L4043(lines 3961 4045) the Hoare annotation is: (= ~ldv_urb_state~0 (_ bv0 32)) [2021-11-12 23:39:17,053 INFO L858 garLoopResultBuilder]: For program point L3994(lines 3994 4030) no Hoare annotation was computed. [2021-11-12 23:39:17,053 INFO L858 garLoopResultBuilder]: For program point L4143(lines 4128 4144) no Hoare annotation was computed. [2021-11-12 23:39:17,053 INFO L858 garLoopResultBuilder]: For program point L3813(lines 3813 3816) no Hoare annotation was computed. [2021-11-12 23:39:17,053 INFO L854 garLoopResultBuilder]: At program point L4193-1(lines 4181 4198) the Hoare annotation is: (= ~ldv_urb_state~0 (_ bv0 32)) [2021-11-12 23:39:17,053 INFO L854 garLoopResultBuilder]: At program point L4193(line 4193) the Hoare annotation is: false [2021-11-12 23:39:17,054 INFO L854 garLoopResultBuilder]: At program point L4028(lines 3980 4031) the Hoare annotation is: (let ((.cse0 (= ~res_kbtab_probe_3~0 (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) (and .cse0 (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-12 23:39:17,054 INFO L854 garLoopResultBuilder]: At program point L3995(lines 3994 4030) the Hoare annotation is: (let ((.cse0 (= ~res_kbtab_probe_3~0 (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) (and .cse0 (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-12 23:39:17,054 INFO L854 garLoopResultBuilder]: At program point L3863(lines 3793 3873) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,054 INFO L858 garLoopResultBuilder]: For program point L4078(lines 4078 4081) no Hoare annotation was computed. [2021-11-12 23:39:17,054 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:39:17,054 INFO L854 garLoopResultBuilder]: At program point L3798(line 3798) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,054 INFO L858 garLoopResultBuilder]: For program point L3798-1(line 3798) no Hoare annotation was computed. [2021-11-12 23:39:17,054 INFO L854 garLoopResultBuilder]: At program point L4129loopEntry(lines 4129 4142) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,054 INFO L858 garLoopResultBuilder]: For program point L3997(lines 3997 4030) no Hoare annotation was computed. [2021-11-12 23:39:17,054 INFO L858 garLoopResultBuilder]: For program point L3865-1(line 3865) no Hoare annotation was computed. [2021-11-12 23:39:17,054 INFO L854 garLoopResultBuilder]: At program point L3865(line 3865) the Hoare annotation is: (and (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (not (= |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv0 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,055 INFO L854 garLoopResultBuilder]: At program point L4146(lines 4124 4148) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|))) (.cse1 (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32)))) (.cse2 (= ~ldv_coherent_state~0 (_ bv1 32))) (.cse3 (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|))) (.cse4 (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32))) (.cse5 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_urb_#res#1.base|)) (.cse6 (bvsge ~ldv_coherent_state~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 (= (_ bv0 64) |ULTIMATE.start_usb_alloc_urb_#res#1.offset|) .cse4 (= ~ldv_urb_state~0 (_ bv0 32)) .cse5 .cse6) (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) .cse0 (= ~ldv_urb_state~0 (_ bv1 32)) .cse1 .cse2 (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_urb_~arbitrary_memory~1#1.base|)) .cse3 .cse4 (not .cse5) .cse6))) [2021-11-12 23:39:17,055 INFO L858 garLoopResultBuilder]: For program point L3981(line 3981) no Hoare annotation was computed. [2021-11-12 23:39:17,055 INFO L854 garLoopResultBuilder]: At program point L3882(line 3882) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-12 23:39:17,055 INFO L858 garLoopResultBuilder]: For program point L3882-1(line 3882) no Hoare annotation was computed. [2021-11-12 23:39:17,055 INFO L854 garLoopResultBuilder]: At program point L4130(line 4130) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_~arbitrary_memory~0#1.base|)) (= (_ bv0 32) (bvadd |ULTIMATE.start_kbtab_probe_~error~0#1| (_ bv12 32))) (= ~ldv_coherent_state~0 (_ bv1 32)) (not (= (_ bv0 64) |ULTIMATE.start_usb_alloc_coherent_#res#1.base|)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))) [2021-11-12 23:39:17,056 INFO L854 garLoopResultBuilder]: At program point L3998(lines 3997 4030) the Hoare annotation is: (let ((.cse0 (= ~res_kbtab_probe_3~0 (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) (and .cse0 (= ~ldv_coherent_state~0 (_ bv0 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv0 32))))) [2021-11-12 23:39:17,056 INFO L854 garLoopResultBuilder]: At program point L4230(lines 4229 4231) the Hoare annotation is: (and (= ~res_kbtab_probe_3~0 (_ bv0 32)) (= |ULTIMATE.start_kbtab_probe_#res#1| (_ bv0 32)) (= ~ldv_urb_state~0 (_ bv1 32)) (= ~ldv_coherent_state~0 (_ bv1 32)) (= |ULTIMATE.start_main_~ldv_s_kbtab_driver_usb_driver~0#1| (_ bv1 32))) [2021-11-12 23:39:17,056 INFO L861 garLoopResultBuilder]: At program point ldv_blast_assertENTRY(lines 4046 4051) the Hoare annotation is: true [2021-11-12 23:39:17,056 INFO L858 garLoopResultBuilder]: For program point ldv_blast_assertEXIT(lines 4046 4051) no Hoare annotation was computed. [2021-11-12 23:39:17,056 INFO L858 garLoopResultBuilder]: For program point ldv_blast_assertFINAL(lines 4046 4051) no Hoare annotation was computed. [2021-11-12 23:39:17,056 INFO L858 garLoopResultBuilder]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4049) no Hoare annotation was computed. [2021-11-12 23:39:17,056 INFO L858 garLoopResultBuilder]: For program point dev_set_drvdataFINAL(lines 4213 4215) no Hoare annotation was computed. [2021-11-12 23:39:17,056 INFO L858 garLoopResultBuilder]: For program point dev_set_drvdataEXIT(lines 4213 4215) no Hoare annotation was computed. [2021-11-12 23:39:17,056 INFO L861 garLoopResultBuilder]: At program point dev_set_drvdataENTRY(lines 4213 4215) the Hoare annotation is: true [2021-11-12 23:39:17,059 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:39:17,060 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:39:17,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:39:17 BoogieIcfgContainer [2021-11-12 23:39:17,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:39:17,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:39:17,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:39:17,106 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:39:17,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:38:03" (3/4) ... [2021-11-12 23:39:17,109 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:39:17,115 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_init [2021-11-12 23:39:17,115 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_get_drvdata [2021-11-12 23:39:17,115 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2021-11-12 23:39:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_set_intfdata [2021-11-12 23:39:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undefined_pointer [2021-11-12 23:39:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_urb [2021-11-12 23:39:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure input_set_abs_params [2021-11-12 23:39:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kbtab_exit [2021-11-12 23:39:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2021-11-12 23:39:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2021-11-12 23:39:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_assume_stop [2021-11-12 23:39:17,117 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usb_free_coherent [2021-11-12 23:39:17,117 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2021-11-12 23:39:17,117 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure dev_set_drvdata [2021-11-12 23:39:17,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2021-11-12 23:39:17,138 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-11-12 23:39:17,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-12 23:39:17,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-12 23:39:17,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:39:17,172 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-12 23:39:17,173 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((ldv_coherent_state == 0bv32 && !(0bv64 == ~bvadd16(addr, addr))) || !(\old(ldv_coherent_state) == 1bv32)) || !(ldv_urb_state == 0bv32) [2021-11-12 23:39:17,173 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0bv64 == ~bvadd16(urb, urb)) && ldv_urb_state == 0bv32) || !(ldv_coherent_state == 1bv32)) || !(\old(ldv_urb_state) == 1bv32)) || !(res_kbtab_probe_3 == 0bv32) [2021-11-12 23:39:17,173 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-12 23:39:17,173 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-12 23:39:17,174 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0bv64 == arbitrary_memory) && !(error == 0bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 [2021-11-12 23:39:17,174 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) && ldv_urb_state == 0bv32 [2021-11-12 23:39:17,174 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (ldv_coherent_state == 1bv32 || !(\old(ldv_coherent_state) == 1bv32)) || !(ldv_urb_state == 0bv32) [2021-11-12 23:39:17,175 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) || ((((!(error == 0bv32) && ldv_coherent_state == 0bv32) && !(\result == 0bv32)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-12 23:39:17,175 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) || (((((!(error == 0bv32) && ldv_coherent_state == 0bv32) && !(\result == 0bv32)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && !(res_kbtab_probe_3 == 0bv32)) && ldv_urb_state == 0bv32) [2021-11-12 23:39:17,176 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32 [2021-11-12 23:39:17,176 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32 [2021-11-12 23:39:17,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-12 23:39:17,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0bv64 == \result && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && 0bv64 == arbitrary_memory) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && 0bv64 == arbitrary_memory) && ldv_urb_state == 0bv32) || ((((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-12 23:39:17,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(0bv64 == arbitrary_memory) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == \result) && ~bvsge32(ldv_coherent_state, 1bv32)) || (((((((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == arbitrary_memory)) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && !(0bv64 == \result)) && ~bvsge32(ldv_coherent_state, 1bv32)) [2021-11-12 23:39:17,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(ldv_coherent_state == 1bv32) || !(\old(ldv_urb_state) == 1bv32)) || ldv_urb_state == 1bv32) || !(res_kbtab_probe_3 == 0bv32) [2021-11-12 23:39:17,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == ~bvadd16(error, 12bv32) && ldv_coherent_state == 0bv32) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == \result) || (((((0bv32 == ~bvadd16(error, 12bv32) && ldv_coherent_state == 0bv32) && 0bv64 == kbtab) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == kbtab)) || ((((res_kbtab_probe_3 == 0bv32 && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) [2021-11-12 23:39:17,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 [2021-11-12 23:39:17,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-12 23:39:17,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-12 23:39:17,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-12 23:39:17,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-12 23:39:17,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-12 23:39:17,181 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-12 23:39:17,181 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && !(error == 0bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 [2021-11-12 23:39:17,360 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:39:17,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:39:17,361 INFO L158 Benchmark]: Toolchain (without parser) took 86126.42ms. Allocated memory was 56.6MB in the beginning and 394.3MB in the end (delta: 337.6MB). Free memory was 28.9MB in the beginning and 223.5MB in the end (delta: -194.6MB). Peak memory consumption was 143.6MB. Max. memory is 16.1GB. [2021-11-12 23:39:17,361 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 37.4MB in the end (delta: 38.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:39:17,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1673.07ms. Allocated memory was 56.6MB in the beginning and 83.9MB in the end (delta: 27.3MB). Free memory was 28.7MB in the beginning and 39.0MB in the end (delta: -10.3MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2021-11-12 23:39:17,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 155.36ms. Allocated memory is still 83.9MB. Free memory was 39.0MB in the beginning and 33.7MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:39:17,367 INFO L158 Benchmark]: Boogie Preprocessor took 171.02ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 33.7MB in the beginning and 68.7MB in the end (delta: -35.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-11-12 23:39:17,367 INFO L158 Benchmark]: RCFGBuilder took 10200.46ms. Allocated memory is still 107.0MB. Free memory was 68.7MB in the beginning and 64.6MB in the end (delta: 4.1MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2021-11-12 23:39:17,368 INFO L158 Benchmark]: TraceAbstraction took 73662.98ms. Allocated memory was 107.0MB in the beginning and 394.3MB in the end (delta: 287.3MB). Free memory was 63.9MB in the beginning and 285.3MB in the end (delta: -221.4MB). Peak memory consumption was 245.1MB. Max. memory is 16.1GB. [2021-11-12 23:39:17,368 INFO L158 Benchmark]: Witness Printer took 255.03ms. Allocated memory is still 394.3MB. Free memory was 285.3MB in the beginning and 223.5MB in the end (delta: 61.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2021-11-12 23:39:17,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 37.4MB in the end (delta: 38.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1673.07ms. Allocated memory was 56.6MB in the beginning and 83.9MB in the end (delta: 27.3MB). Free memory was 28.7MB in the beginning and 39.0MB in the end (delta: -10.3MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 155.36ms. Allocated memory is still 83.9MB. Free memory was 39.0MB in the beginning and 33.7MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 171.02ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 33.7MB in the beginning and 68.7MB in the end (delta: -35.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * RCFGBuilder took 10200.46ms. Allocated memory is still 107.0MB. Free memory was 68.7MB in the beginning and 64.6MB in the end (delta: 4.1MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * TraceAbstraction took 73662.98ms. Allocated memory was 107.0MB in the beginning and 394.3MB in the end (delta: 287.3MB). Free memory was 63.9MB in the beginning and 285.3MB in the end (delta: -221.4MB). Peak memory consumption was 245.1MB. Max. memory is 16.1GB. * Witness Printer took 255.03ms. Allocated memory is still 394.3MB. Free memory was 285.3MB in the beginning and 223.5MB in the end (delta: 61.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4049]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 164 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.5s, OverallIterations: 20, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 2752 SdHoareTripleChecker+Valid, 15813.44ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2662 mSDsluCounter, 18362 SdHoareTripleChecker+Invalid, 14950.06ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13788 mSDsCounter, 333 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1156 IncrementalHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 333 mSolverCounterUnsat, 4574 mSDtfsCounter, 1156 mSolverCounterSat, 109.51ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4205 GetRequests, 4103 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2127occurred in iteration=17, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 20 MinimizatonAttempts, 2241 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 81 LocationsWithAnnotation, 3447 PreInvPairs, 3551 NumberOfFragments, 1264 HoareAnnotationTreeSize, 3447 FomulaSimplifications, 204442 FormulaSimplificationTreeSizeReduction, 3.4s HoareSimplificationTime, 81 FomulaSimplificationsInter, 52407 FormulaSimplificationTreeSizeReductionInter, 12.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 10.3s SatisfiabilityAnalysisTime, 18.1s InterpolantComputationTime, 2112 NumberOfCodeBlocks, 2112 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 4178 ConstructedInterpolants, 0 QuantifiedInterpolants, 7076 SizeOfPredicates, 87 NumberOfNonLiveVariables, 12594 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 46 InterpolantComputations, 35 PerfectInterpolantSequences, 1286/1382 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4055]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3782]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) || ((((!(error == 0bv32) && ldv_coherent_state == 0bv32) && !(\result == 0bv32)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4072]: Loop Invariant Derived loop invariant: (((res_kbtab_probe_3 == 0bv32 && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3512]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd16(error, 12bv32) && ldv_coherent_state == 0bv32) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == \result) || (((((0bv32 == ~bvadd16(error, 12bv32) && ldv_coherent_state == 0bv32) && 0bv64 == kbtab) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == kbtab)) || ((((res_kbtab_probe_3 == 0bv32 && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 3449]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 3465]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4181]: Loop Invariant Derived loop invariant: ldv_urb_state == 0bv32 - InvariantResult [Line: 4229]: Loop Invariant Derived loop invariant: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32 - InvariantResult [Line: 3525]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 4256]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3422]: Loop Invariant Derived loop invariant: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32 - InvariantResult [Line: 3793]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && !(error == 0bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 4097]: Loop Invariant Derived loop invariant: (ldv_coherent_state == 1bv32 || !(\old(ldv_coherent_state) == 1bv32)) || !(ldv_urb_state == 0bv32) - InvariantResult [Line: 3442]: Loop Invariant Derived loop invariant: ((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3475]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 3793]: Loop Invariant Derived loop invariant: ((((!(0bv64 == arbitrary_memory) && !(error == 0bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 4093]: Loop Invariant Derived loop invariant: ((ldv_coherent_state == 0bv32 && !(0bv64 == ~bvadd16(addr, addr))) || !(\old(ldv_coherent_state) == 1bv32)) || !(ldv_urb_state == 0bv32) - InvariantResult [Line: 3875]: Loop Invariant Derived loop invariant: (((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3994]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3961]: Loop Invariant Derived loop invariant: ldv_urb_state == 0bv32 - InvariantResult [Line: 3980]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4129]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 4232]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) || (((((!(error == 0bv32) && ldv_coherent_state == 0bv32) && !(\result == 0bv32)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && !(res_kbtab_probe_3 == 0bv32)) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4124]: Loop Invariant Derived loop invariant: ((((((((!(0bv64 == arbitrary_memory) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) && 0bv64 == \result) && ~bvsge32(ldv_coherent_state, 1bv32)) || (((((((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == arbitrary_memory)) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && !(0bv64 == \result)) && ~bvsge32(ldv_coherent_state, 1bv32)) - InvariantResult [Line: 4219]: Loop Invariant Derived loop invariant: ((!(error == 0bv32) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3968]: Loop Invariant Derived loop invariant: ldv_coherent_state == 0bv32 && ldv_urb_state == 0bv32 - InvariantResult [Line: 4066]: Loop Invariant Derived loop invariant: (((((((0bv64 == \result && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 0bv32) && 0bv64 == arbitrary_memory) && 0bv64 == \result) && ldv_s_kbtab_driver_usb_driver == 0bv32) && 0bv64 == arbitrary_memory) && ldv_urb_state == 0bv32) || ((((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) - InvariantResult [Line: 4150]: Loop Invariant Derived loop invariant: (((!(0bv64 == ~bvadd16(urb, urb)) && ldv_urb_state == 0bv32) || !(ldv_coherent_state == 1bv32)) || !(\old(ldv_urb_state) == 1bv32)) || !(res_kbtab_probe_3 == 0bv32) - InvariantResult [Line: 3793]: Loop Invariant Derived loop invariant: ((!(error == 0bv32) && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3394]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4246]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 4154]: Loop Invariant Derived loop invariant: ((!(ldv_coherent_state == 1bv32) || !(\old(ldv_urb_state) == 1bv32)) || ldv_urb_state == 1bv32) || !(res_kbtab_probe_3 == 0bv32) - InvariantResult [Line: 4206]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4223]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 4235]: Loop Invariant Derived loop invariant: (res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_urb_state == 0bv32 - InvariantResult [Line: 3506]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 3569]: Loop Invariant Derived loop invariant: (((((res_kbtab_probe_3 == 0bv32 && !(0bv64 == arbitrary_memory)) && ldv_urb_state == 1bv32) && 0bv32 == ~bvadd16(error, 12bv32)) && ldv_coherent_state == 1bv32) && !(0bv64 == \result)) && ldv_s_kbtab_driver_usb_driver == 0bv32 - InvariantResult [Line: 3979]: Loop Invariant Derived loop invariant: ldv_coherent_state == 0bv32 && ldv_urb_state == 0bv32 - InvariantResult [Line: 3911]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3997]: Loop Invariant Derived loop invariant: ((((res_kbtab_probe_3 == 0bv32 && \result == 0bv32) && ldv_urb_state == 1bv32) && ldv_coherent_state == 1bv32) && ldv_s_kbtab_driver_usb_driver == 1bv32) || (((res_kbtab_probe_3 == 0bv32 && ldv_coherent_state == 0bv32) && ldv_s_kbtab_driver_usb_driver == 0bv32) && ldv_urb_state == 0bv32) RESULT: Ultimate proved your program to be correct! [2021-11-12 23:39:17,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce3c9a-a9b4-44e5-95d7-ee8b530bf240/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE