./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8 --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 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:56:41,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:56:41,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:56:41,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:56:41,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:56:41,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:56:41,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:56:41,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:56:41,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:56:41,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:56:41,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:56:41,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:56:41,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:56:41,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:56:41,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:56:41,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:56:41,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:56:41,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:56:41,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:56:41,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:56:41,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:56:41,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:56:41,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:56:41,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:56:41,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:56:41,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:56:41,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:56:41,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:56:41,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:56:41,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:56:41,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:56:41,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:56:41,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:56:41,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:56:41,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:56:41,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:56:41,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:56:41,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:56:41,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:56:41,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:56:41,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:56:41,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:56:41,720 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:56:41,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:56:41,722 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:56:41,722 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:56:41,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:56:41,723 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:56:41,723 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:56:41,723 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:56:41,723 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:56:41,724 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:56:41,724 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:56:41,724 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:56:41,724 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:56:41,725 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:56:41,725 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:56:41,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:56:41,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:56:41,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:56:41,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:56:41,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:56:41,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:56:41,727 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:56:41,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:56:41,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:56:41,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:56:41,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:56:41,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:56:41,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:56:41,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:56:41,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:56:41,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:56:41,729 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:56:41,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:56:41,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:56:41,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:56:41,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:56:41,731 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_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2021-11-07 00:56:41,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:56:42,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:56:42,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:56:42,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:56:42,015 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:56:42,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-07 00:56:42,107 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data/1872ec2e2/2c2949d267894f3685ea72b23fd30268/FLAG1eb69e249 [2021-11-07 00:56:42,909 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:56:42,909 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-07 00:56:42,962 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data/1872ec2e2/2c2949d267894f3685ea72b23fd30268/FLAG1eb69e249 [2021-11-07 00:56:43,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data/1872ec2e2/2c2949d267894f3685ea72b23fd30268 [2021-11-07 00:56:43,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:56:43,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:56:43,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:56:43,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:56:43,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:56:43,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:56:43" (1/1) ... [2021-11-07 00:56:43,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4519cee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:43, skipping insertion in model container [2021-11-07 00:56:43,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:56:43" (1/1) ... [2021-11-07 00:56:43,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:56:43,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:56:44,196 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_77c1cd8f-0341-4316-93b6-68829c083200/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-07 00:56:44,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:56:44,490 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) [2021-11-07 00:56:44,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ee3c3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:44, skipping insertion in model container [2021-11-07 00:56:44,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:56:44,492 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:56:44,495 INFO L168 Benchmark]: Toolchain (without parser) took 1481.88 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 61.3 MB in the beginning and 87.6 MB in the end (delta: -26.4 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-11-07 00:56:44,497 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory is still 37.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:56:44,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1476.67 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 61.1 MB in the beginning and 87.6 MB in the end (delta: -26.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-11-07 00:56:44,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory is still 37.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1476.67 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 61.1 MB in the beginning and 87.6 MB in the end (delta: -26.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5975]: 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_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8 --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 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:56:46,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:56:46,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:56:46,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:56:46,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:56:46,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:56:46,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:56:46,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:56:46,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:56:46,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:56:46,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:56:46,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:56:46,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:56:46,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:56:46,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:56:46,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:56:46,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:56:46,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:56:46,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:56:46,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:56:47,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:56:47,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:56:47,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:56:47,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:56:47,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:56:47,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:56:47,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:56:47,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:56:47,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:56:47,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:56:47,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:56:47,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:56:47,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:56:47,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:56:47,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:56:47,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:56:47,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:56:47,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:56:47,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:56:47,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:56:47,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:56:47,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:56:47,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:56:47,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:56:47,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:56:47,094 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:56:47,095 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:56:47,095 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:56:47,095 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:56:47,095 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:56:47,096 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:56:47,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:56:47,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:56:47,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:56:47,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:56:47,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:56:47,099 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:56:47,100 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:56:47,100 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:56:47,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:56:47,100 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:56:47,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:56:47,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:56:47,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:56:47,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:56:47,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:56:47,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:56:47,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:56:47,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:56:47,102 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:56:47,103 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:56:47,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:56:47,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:56:47,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:56:47,103 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_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2021-11-07 00:56:47,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:56:47,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:56:47,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:56:47,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:56:47,557 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:56:47,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-07 00:56:47,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data/41a16c9c8/fbd640c3a0a144ce8ec24c42ba684ead/FLAG4c123ac3c [2021-11-07 00:56:48,647 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:56:48,648 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-07 00:56:48,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data/41a16c9c8/fbd640c3a0a144ce8ec24c42ba684ead/FLAG4c123ac3c [2021-11-07 00:56:49,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/data/41a16c9c8/fbd640c3a0a144ce8ec24c42ba684ead [2021-11-07 00:56:49,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:56:49,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:56:49,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:56:49,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:56:49,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:56:49,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:56:49" (1/1) ... [2021-11-07 00:56:49,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6a74b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:49, skipping insertion in model container [2021-11-07 00:56:49,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:56:49" (1/1) ... [2021-11-07 00:56:49,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:56:49,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:56:50,174 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_77c1cd8f-0341-4316-93b6-68829c083200/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-07 00:56:50,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:56:50,476 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:56:50,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:56:50,736 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_77c1cd8f-0341-4316-93b6-68829c083200/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-07 00:56:50,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:56:50,831 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:56:51,058 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_77c1cd8f-0341-4316-93b6-68829c083200/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-11-07 00:56:51,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:56:51,263 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:56:51,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51 WrapperNode [2021-11-07 00:56:51,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:56:51,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:56:51,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:56:51,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:56:51,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:56:51,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:56:51,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:56:51,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:56:51,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:56:51,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:56:51,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:56:51,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:56:51,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (1/1) ... [2021-11-07 00:56:51,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:56:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:56:51,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:56:51,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:56:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:56:51,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:56:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:56:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:56:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:56:51,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:56:51,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 00:56:51,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:56:51,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:56:51,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:56:51,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:56:51,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:56:55,635 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:56:55,635 INFO L299 CfgBuilder]: Removed 141 assume(true) statements. [2021-11-07 00:56:55,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:56:55 BoogieIcfgContainer [2021-11-07 00:56:55,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:56:55,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:56:55,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:56:55,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:56:55,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:56:49" (1/3) ... [2021-11-07 00:56:55,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fa59d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:56:55, skipping insertion in model container [2021-11-07 00:56:55,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:51" (2/3) ... [2021-11-07 00:56:55,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fa59d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:56:55, skipping insertion in model container [2021-11-07 00:56:55,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:56:55" (3/3) ... [2021-11-07 00:56:55,647 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-11-07 00:56:55,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:56:55,654 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 00:56:55,709 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:56:55,715 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 [2021-11-07 00:56:55,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 00:56:55,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 150 states have (on average 1.5) internal successors, (225), 156 states have internal predecessors, (225), 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) [2021-11-07 00:56:55,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 00:56:55,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:55,764 INFO L513 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] [2021-11-07 00:56:55,765 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:56:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:55,771 INFO L85 PathProgramCache]: Analyzing trace with hash 214162578, now seen corresponding path program 1 times [2021-11-07 00:56:55,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:55,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230800231] [2021-11-07 00:56:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:55,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:55,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:55,798 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:55,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:56:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:57,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 00:56:57,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:57,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:57,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:57,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230800231] [2021-11-07 00:56:57,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230800231] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:57,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:57,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:56:57,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709991784] [2021-11-07 00:56:57,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:56:57,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:57,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:56:57,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:56:57,810 INFO L87 Difference]: Start difference. First operand has 157 states, 150 states have (on average 1.5) internal successors, (225), 156 states have internal predecessors, (225), 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) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-11-07 00:56:57,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:57,843 INFO L93 Difference]: Finished difference Result 310 states and 445 transitions. [2021-11-07 00:56:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:56:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) Word has length 39 [2021-11-07 00:56:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:57,858 INFO L225 Difference]: With dead ends: 310 [2021-11-07 00:56:57,858 INFO L226 Difference]: Without dead ends: 144 [2021-11-07 00:56:57,862 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:56:57,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-07 00:56:57,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-11-07 00:56:57,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 143 states have internal predecessors, (190), 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) [2021-11-07 00:56:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 190 transitions. [2021-11-07 00:56:57,912 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 190 transitions. Word has length 39 [2021-11-07 00:56:57,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:57,912 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 190 transitions. [2021-11-07 00:56:57,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-11-07 00:56:57,913 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 190 transitions. [2021-11-07 00:56:57,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 00:56:57,915 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:57,916 INFO L513 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] [2021-11-07 00:56:57,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 00:56:58,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:58,131 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:56:58,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:58,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1366579640, now seen corresponding path program 1 times [2021-11-07 00:56:58,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:58,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766708826] [2021-11-07 00:56:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:58,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:58,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:58,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:58,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:56:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:59,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 00:56:59,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:59,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:59,836 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:59,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766708826] [2021-11-07 00:56:59,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766708826] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:59,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:59,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:56:59,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115606478] [2021-11-07 00:56:59,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:56:59,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:59,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:56:59,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:59,845 INFO L87 Difference]: Start difference. First operand 144 states and 190 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-11-07 00:56:59,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:59,927 INFO L93 Difference]: Finished difference Result 262 states and 355 transitions. [2021-11-07 00:56:59,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:56:59,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) Word has length 39 [2021-11-07 00:56:59,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:59,931 INFO L225 Difference]: With dead ends: 262 [2021-11-07 00:56:59,933 INFO L226 Difference]: Without dead ends: 146 [2021-11-07 00:56:59,935 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:59,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-07 00:56:59,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-07 00:56:59,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 145 states have internal predecessors, (192), 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) [2021-11-07 00:56:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 192 transitions. [2021-11-07 00:56:59,964 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 192 transitions. Word has length 39 [2021-11-07 00:56:59,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:59,968 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 192 transitions. [2021-11-07 00:56:59,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-11-07 00:56:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 192 transitions. [2021-11-07 00:56:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 00:56:59,973 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:59,974 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:00,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:00,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:00,188 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:57:00,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1435661640, now seen corresponding path program 1 times [2021-11-07 00:57:00,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:00,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558862104] [2021-11-07 00:57:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:00,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:00,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:00,195 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:00,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:57:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:01,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:01,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:01,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:01,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:02,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:02,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558862104] [2021-11-07 00:57:02,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558862104] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:02,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1454092806] [2021-11-07 00:57:02,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:02,193 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:02,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:02,198 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:02,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-07 00:57:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:03,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:57:03,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:03,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:03,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1454092806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:03,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 00:57:03,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 00:57:03,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580261754] [2021-11-07 00:57:03,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:57:03,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:03,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:57:03,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:03,348 INFO L87 Difference]: Start difference. First operand 146 states and 192 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-07 00:57:03,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:03,601 INFO L93 Difference]: Finished difference Result 349 states and 481 transitions. [2021-11-07 00:57:03,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:57:03,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) Word has length 41 [2021-11-07 00:57:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:03,605 INFO L225 Difference]: With dead ends: 349 [2021-11-07 00:57:03,605 INFO L226 Difference]: Without dead ends: 235 [2021-11-07 00:57:03,606 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:03,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-07 00:57:03,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 221. [2021-11-07 00:57:03,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 215 states have (on average 1.4325581395348836) internal successors, (308), 220 states have internal predecessors, (308), 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) [2021-11-07 00:57:03,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 308 transitions. [2021-11-07 00:57:03,651 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 308 transitions. Word has length 41 [2021-11-07 00:57:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:03,652 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 308 transitions. [2021-11-07 00:57:03,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-07 00:57:03,654 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 308 transitions. [2021-11-07 00:57:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 00:57:03,660 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:03,660 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:03,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-11-07 00:57:03,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 00:57:04,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:04,065 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:57:04,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:04,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1265334357, now seen corresponding path program 1 times [2021-11-07 00:57:04,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:04,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567633095] [2021-11-07 00:57:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:04,070 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:04,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:04,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:04,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:57:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:05,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:05,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:05,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:05,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:05,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:05,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567633095] [2021-11-07 00:57:05,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567633095] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:05,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [315373582] [2021-11-07 00:57:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:06,000 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:06,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:06,011 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:06,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 00:57:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:06,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:57:06,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:07,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:07,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [315373582] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:07,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 00:57:07,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 00:57:07,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56438] [2021-11-07 00:57:07,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:57:07,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:57:07,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:07,292 INFO L87 Difference]: Start difference. First operand 221 states and 308 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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) [2021-11-07 00:57:07,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:07,310 INFO L93 Difference]: Finished difference Result 221 states and 308 transitions. [2021-11-07 00:57:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:57:07,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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) Word has length 44 [2021-11-07 00:57:07,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:07,317 INFO L225 Difference]: With dead ends: 221 [2021-11-07 00:57:07,317 INFO L226 Difference]: Without dead ends: 219 [2021-11-07 00:57:07,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-11-07 00:57:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-11-07 00:57:07,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4299065420560748) internal successors, (306), 218 states have internal predecessors, (306), 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) [2021-11-07 00:57:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 306 transitions. [2021-11-07 00:57:07,362 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 306 transitions. Word has length 44 [2021-11-07 00:57:07,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:07,362 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 306 transitions. [2021-11-07 00:57:07,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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) [2021-11-07 00:57:07,362 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 306 transitions. [2021-11-07 00:57:07,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 00:57:07,364 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:07,364 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:07,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:07,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 00:57:07,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:07,771 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:57:07,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:07,771 INFO L85 PathProgramCache]: Analyzing trace with hash -570652871, now seen corresponding path program 1 times [2021-11-07 00:57:07,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:07,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356390445] [2021-11-07 00:57:07,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:07,773 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:07,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:07,775 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:07,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 00:57:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:09,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:09,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:09,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:09,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:09,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356390445] [2021-11-07 00:57:09,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356390445] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:09,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [98570574] [2021-11-07 00:57:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:09,708 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:09,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:09,709 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:09,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-07 00:57:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:10,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:57:10,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:10,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:10,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:10,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [98570574] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:10,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 00:57:10,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 00:57:10,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479430942] [2021-11-07 00:57:10,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:57:10,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:10,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:57:10,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:10,949 INFO L87 Difference]: Start difference. First operand 219 states and 306 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-07 00:57:10,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:10,965 INFO L93 Difference]: Finished difference Result 219 states and 306 transitions. [2021-11-07 00:57:10,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:57:10,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) Word has length 45 [2021-11-07 00:57:10,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:10,968 INFO L225 Difference]: With dead ends: 219 [2021-11-07 00:57:10,968 INFO L226 Difference]: Without dead ends: 217 [2021-11-07 00:57:10,969 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:10,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-07 00:57:10,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-11-07 00:57:10,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 213 states have (on average 1.4272300469483568) internal successors, (304), 216 states have internal predecessors, (304), 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) [2021-11-07 00:57:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 304 transitions. [2021-11-07 00:57:10,982 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 304 transitions. Word has length 45 [2021-11-07 00:57:10,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:10,983 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 304 transitions. [2021-11-07 00:57:10,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-07 00:57:10,984 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 304 transitions. [2021-11-07 00:57:10,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 00:57:10,985 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:10,985 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:11,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:11,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:11,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:11,411 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:57:11,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:11,412 INFO L85 PathProgramCache]: Analyzing trace with hash -510363275, now seen corresponding path program 1 times [2021-11-07 00:57:11,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:11,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219317429] [2021-11-07 00:57:11,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:11,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:11,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:11,414 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:11,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 00:57:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:12,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:12,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:12,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:13,290 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:13,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219317429] [2021-11-07 00:57:13,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219317429] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:13,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [331241591] [2021-11-07 00:57:13,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:13,291 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:13,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:13,292 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:13,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-07 00:57:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:14,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:57:14,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:14,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:14,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:14,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [331241591] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:14,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 00:57:14,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 00:57:14,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568651298] [2021-11-07 00:57:14,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:57:14,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:14,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:57:14,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:14,540 INFO L87 Difference]: Start difference. First operand 217 states and 304 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2021-11-07 00:57:14,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:14,554 INFO L93 Difference]: Finished difference Result 217 states and 304 transitions. [2021-11-07 00:57:14,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:57:14,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) Word has length 46 [2021-11-07 00:57:14,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:14,557 INFO L225 Difference]: With dead ends: 217 [2021-11-07 00:57:14,557 INFO L226 Difference]: Without dead ends: 215 [2021-11-07 00:57:14,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:14,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-07 00:57:14,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-07 00:57:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 212 states have (on average 1.4245283018867925) internal successors, (302), 214 states have internal predecessors, (302), 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) [2021-11-07 00:57:14,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 302 transitions. [2021-11-07 00:57:14,574 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 302 transitions. Word has length 46 [2021-11-07 00:57:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:14,575 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 302 transitions. [2021-11-07 00:57:14,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2021-11-07 00:57:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 302 transitions. [2021-11-07 00:57:14,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 00:57:14,576 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:14,577 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:14,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:14,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:15,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:15,003 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:57:15,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1358614211, now seen corresponding path program 1 times [2021-11-07 00:57:15,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:15,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277328478] [2021-11-07 00:57:15,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:15,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:15,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:15,006 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:15,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 00:57:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:16,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:16,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:16,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:16,929 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:16,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277328478] [2021-11-07 00:57:16,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277328478] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:16,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [25925454] [2021-11-07 00:57:16,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:16,930 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:16,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:16,931 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:16,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-07 00:57:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:17,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:57:17,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:18,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:18,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 00:57:18,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [25925454] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:18,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 00:57:18,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-11-07 00:57:18,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634942583] [2021-11-07 00:57:18,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:57:18,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:18,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:57:18,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:18,230 INFO L87 Difference]: Start difference. First operand 215 states and 302 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2021-11-07 00:57:18,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:18,269 INFO L93 Difference]: Finished difference Result 574 states and 835 transitions. [2021-11-07 00:57:18,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:57:18,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) Word has length 47 [2021-11-07 00:57:18,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:18,273 INFO L225 Difference]: With dead ends: 574 [2021-11-07 00:57:18,273 INFO L226 Difference]: Without dead ends: 385 [2021-11-07 00:57:18,274 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:18,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-11-07 00:57:18,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2021-11-07 00:57:18,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 380 states have (on average 1.4552631578947368) internal successors, (553), 382 states have internal predecessors, (553), 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) [2021-11-07 00:57:18,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 553 transitions. [2021-11-07 00:57:18,296 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 553 transitions. Word has length 47 [2021-11-07 00:57:18,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:18,296 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 553 transitions. [2021-11-07 00:57:18,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2021-11-07 00:57:18,297 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 553 transitions. [2021-11-07 00:57:18,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 00:57:18,298 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:18,298 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 00:57:18,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:18,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:18,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:18,703 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:57:18,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:18,703 INFO L85 PathProgramCache]: Analyzing trace with hash 253710387, now seen corresponding path program 1 times [2021-11-07 00:57:18,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:18,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153736192] [2021-11-07 00:57:18,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:18,705 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:18,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:18,707 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:18,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 00:57:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:20,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:20,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:57:20,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:20,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:57:20,868 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:20,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153736192] [2021-11-07 00:57:20,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153736192] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:20,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [725005999] [2021-11-07 00:57:20,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:20,873 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:20,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:20,874 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:20,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-07 00:57:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:21,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:57:21,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 00:57:22,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 00:57:22,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [725005999] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:22,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 00:57:22,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 00:57:22,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352381327] [2021-11-07 00:57:22,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:57:22,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:22,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:57:22,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:22,140 INFO L87 Difference]: Start difference. First operand 383 states and 553 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-07 00:57:23,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:23,650 INFO L93 Difference]: Finished difference Result 734 states and 1073 transitions. [2021-11-07 00:57:23,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:57:23,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) Word has length 68 [2021-11-07 00:57:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:23,655 INFO L225 Difference]: With dead ends: 734 [2021-11-07 00:57:23,655 INFO L226 Difference]: Without dead ends: 383 [2021-11-07 00:57:23,656 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 00:57:23,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-11-07 00:57:23,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2021-11-07 00:57:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 380 states have (on average 1.45) internal successors, (551), 382 states have internal predecessors, (551), 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) [2021-11-07 00:57:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 551 transitions. [2021-11-07 00:57:23,680 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 551 transitions. Word has length 68 [2021-11-07 00:57:23,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:23,680 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 551 transitions. [2021-11-07 00:57:23,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-07 00:57:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 551 transitions. [2021-11-07 00:57:23,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 00:57:23,682 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:23,682 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 00:57:23,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:23,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:24,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:24,088 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:57:24,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:24,089 INFO L85 PathProgramCache]: Analyzing trace with hash 332091450, now seen corresponding path program 1 times [2021-11-07 00:57:24,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:24,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315212530] [2021-11-07 00:57:24,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:24,090 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:24,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:24,091 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:24,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 00:57:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:25,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:25,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:25,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:57:25,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:57:26,322 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:26,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315212530] [2021-11-07 00:57:26,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315212530] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:26,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1693417790] [2021-11-07 00:57:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:26,322 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:26,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:26,323 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:26,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-07 00:57:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:29,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:29,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:57:29,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:29,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 00:57:29,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1693417790] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:29,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459761154] [2021-11-07 00:57:29,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:29,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:57:29,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:57:29,447 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:57:29,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-07 00:57:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:30,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 00:57:30,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 00:57:31,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 00:57:31,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459761154] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:31,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 00:57:31,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-07 00:57:31,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742540575] [2021-11-07 00:57:31,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 00:57:31,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:31,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 00:57:31,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-07 00:57:31,286 INFO L87 Difference]: Start difference. First operand 383 states and 551 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-11-07 00:57:31,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:31,720 INFO L93 Difference]: Finished difference Result 1385 states and 2054 transitions. [2021-11-07 00:57:31,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 00:57:31,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) Word has length 69 [2021-11-07 00:57:31,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:31,728 INFO L225 Difference]: With dead ends: 1385 [2021-11-07 00:57:31,728 INFO L226 Difference]: Without dead ends: 1034 [2021-11-07 00:57:31,729 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-11-07 00:57:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-11-07 00:57:31,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 381. [2021-11-07 00:57:31,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 379 states have (on average 1.4485488126649078) internal successors, (549), 380 states have internal predecessors, (549), 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) [2021-11-07 00:57:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 549 transitions. [2021-11-07 00:57:31,760 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 549 transitions. Word has length 69 [2021-11-07 00:57:31,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:31,760 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 549 transitions. [2021-11-07 00:57:31,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-11-07 00:57:31,761 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 549 transitions. [2021-11-07 00:57:31,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 00:57:31,762 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:31,762 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 00:57:31,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:32,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:32,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:32,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:32,383 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 00:57:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:32,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1703397231, now seen corresponding path program 1 times [2021-11-07 00:57:32,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:32,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211127939] [2021-11-07 00:57:32,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:32,385 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:32,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:32,386 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:32,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-07 00:57:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:34,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:34,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 00:57:34,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 00:57:34,802 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:34,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211127939] [2021-11-07 00:57:34,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211127939] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:34,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [55205829] [2021-11-07 00:57:34,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:34,803 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:34,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:34,811 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:34,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-07 00:57:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:37,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 00:57:37,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:38,037 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 00:57:38,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 00:57:38,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [55205829] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 00:57:38,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142464519] [2021-11-07 00:57:38,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:38,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:57:38,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:57:38,250 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:57:38,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-07 00:57:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:39,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 00:57:39,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 00:57:39,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 00:57:40,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142464519] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:40,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 00:57:40,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 14 [2021-11-07 00:57:40,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626821422] [2021-11-07 00:57:40,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 00:57:40,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:40,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 00:57:40,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-07 00:57:40,174 INFO L87 Difference]: Start difference. First operand 381 states and 549 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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) [2021-11-07 00:57:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:40,325 INFO L93 Difference]: Finished difference Result 536 states and 785 transitions. [2021-11-07 00:57:40,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:57:40,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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) Word has length 74 [2021-11-07 00:57:40,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:40,328 INFO L225 Difference]: With dead ends: 536 [2021-11-07 00:57:40,328 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 00:57:40,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-11-07 00:57:40,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 00:57:40,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 00:57:40,330 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) [2021-11-07 00:57:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 00:57:40,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-11-07 00:57:40,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:40,330 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 00:57:40,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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) [2021-11-07 00:57:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 00:57:40,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 00:57:40,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:57:40,335 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:57:40,335 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:57:40,335 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:57:40,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:57:40,336 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:57:40,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:40,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:40,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2021-11-07 00:57:40,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:40,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 00:57:40,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:41,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:57:42,251 INFO L857 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2021-11-07 00:57:42,251 INFO L857 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2021-11-07 00:57:42,252 INFO L857 garLoopResultBuilder]: For program point L6113(lines 6113 6116) no Hoare annotation was computed. [2021-11-07 00:57:42,252 INFO L857 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2021-11-07 00:57:42,252 INFO L853 garLoopResultBuilder]: At program point L7005(lines 7004 7006) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,252 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-07 00:57:42,252 INFO L857 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2021-11-07 00:57:42,253 INFO L857 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2021-11-07 00:57:42,253 INFO L857 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2021-11-07 00:57:42,253 INFO L853 garLoopResultBuilder]: At program point L6347(lines 6336 6349) the Hoare annotation is: (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,253 INFO L857 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2021-11-07 00:57:42,253 INFO L857 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2021-11-07 00:57:42,253 INFO L857 garLoopResultBuilder]: For program point L5720-1(lines 5720 5722) no Hoare annotation was computed. [2021-11-07 00:57:42,253 INFO L857 garLoopResultBuilder]: For program point L5720-2(lines 5720 5722) no Hoare annotation was computed. [2021-11-07 00:57:42,253 INFO L857 garLoopResultBuilder]: For program point L5720(lines 5720 5722) no Hoare annotation was computed. [2021-11-07 00:57:42,254 INFO L857 garLoopResultBuilder]: For program point L5720-5(lines 5720 5722) no Hoare annotation was computed. [2021-11-07 00:57:42,254 INFO L857 garLoopResultBuilder]: For program point L5720-6(lines 5720 5722) no Hoare annotation was computed. [2021-11-07 00:57:42,254 INFO L857 garLoopResultBuilder]: For program point L5720-3(lines 5720 5722) no Hoare annotation was computed. [2021-11-07 00:57:42,254 INFO L857 garLoopResultBuilder]: For program point L5720-4(lines 5720 5722) no Hoare annotation was computed. [2021-11-07 00:57:42,254 INFO L857 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2021-11-07 00:57:42,254 INFO L853 garLoopResultBuilder]: At program point L7009(lines 7008 7010) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,254 INFO L857 garLoopResultBuilder]: For program point L5721-2(line 5721) no Hoare annotation was computed. [2021-11-07 00:57:42,254 INFO L857 garLoopResultBuilder]: For program point L5721(line 5721) no Hoare annotation was computed. [2021-11-07 00:57:42,255 INFO L857 garLoopResultBuilder]: For program point L5721-6(line 5721) no Hoare annotation was computed. [2021-11-07 00:57:42,255 INFO L857 garLoopResultBuilder]: For program point L5721-4(line 5721) no Hoare annotation was computed. [2021-11-07 00:57:42,255 INFO L857 garLoopResultBuilder]: For program point L5721-10(line 5721) no Hoare annotation was computed. [2021-11-07 00:57:42,255 INFO L857 garLoopResultBuilder]: For program point L5721-8(line 5721) no Hoare annotation was computed. [2021-11-07 00:57:42,255 INFO L857 garLoopResultBuilder]: For program point L5721-12(line 5721) no Hoare annotation was computed. [2021-11-07 00:57:42,255 INFO L857 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2021-11-07 00:57:42,255 INFO L853 garLoopResultBuilder]: At program point L5953(lines 5948 5955) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,255 INFO L860 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2021-11-07 00:57:42,255 INFO L857 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2021-11-07 00:57:42,256 INFO L853 garLoopResultBuilder]: At program point L6318(lines 6307 6320) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,256 INFO L853 garLoopResultBuilder]: At program point L6153(lines 6965 6968) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,256 INFO L857 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2021-11-07 00:57:42,256 INFO L857 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2021-11-07 00:57:42,256 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-07 00:57:42,256 INFO L857 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2021-11-07 00:57:42,256 INFO L857 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2021-11-07 00:57:42,257 INFO L853 garLoopResultBuilder]: At program point L7013(lines 7012 7014) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ULTIMATE.start_m5632_recover_~r~0 (_ bv0 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,257 INFO L857 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2021-11-07 00:57:42,257 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-07 00:57:42,257 INFO L857 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2021-11-07 00:57:42,257 INFO L857 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2021-11-07 00:57:42,257 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-07 00:57:42,257 INFO L853 garLoopResultBuilder]: At program point L6223(lines 6002 6228) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,258 INFO L853 garLoopResultBuilder]: At program point L7016-1(lines 7015 7017) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,258 INFO L853 garLoopResultBuilder]: At program point L7016(lines 7015 7017) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,258 INFO L857 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2021-11-07 00:57:42,258 INFO L857 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2021-11-07 00:57:42,262 INFO L853 garLoopResultBuilder]: At program point L6951(lines 6940 6954) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32))) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32))) (.cse2 (= ~ldv_mutex_lock~0 (_ bv1 32)))) (or (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) .cse0 .cse1 (= ~ldv_mutex_udev~0 (_ bv2 32)) .cse2) (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) .cse0 .cse1 (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) .cse2 (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)))))) [2021-11-07 00:57:42,263 INFO L860 garLoopResultBuilder]: At program point L5795(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,263 INFO L860 garLoopResultBuilder]: At program point L5795-1(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,264 INFO L860 garLoopResultBuilder]: At program point L5795-4(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,264 INFO L860 garLoopResultBuilder]: At program point L5795-5(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,264 INFO L860 garLoopResultBuilder]: At program point L5795-2(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,265 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-07 00:57:42,265 INFO L860 garLoopResultBuilder]: At program point L5795-3(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,265 INFO L860 garLoopResultBuilder]: At program point L5795-8(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,265 INFO L860 garLoopResultBuilder]: At program point L5795-6(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,265 INFO L860 garLoopResultBuilder]: At program point L5795-7(lines 5794 5797) the Hoare annotation is: true [2021-11-07 00:57:42,266 INFO L857 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2021-11-07 00:57:42,266 INFO L857 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2021-11-07 00:57:42,266 INFO L857 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2021-11-07 00:57:42,266 INFO L853 garLoopResultBuilder]: At program point L6985(lines 6984 6986) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ULTIMATE.start_m5632_recover_~r~0 (_ bv0 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,266 INFO L857 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2021-11-07 00:57:42,267 INFO L857 garLoopResultBuilder]: For program point L6094(lines 6094 6098) no Hoare annotation was computed. [2021-11-07 00:57:42,267 INFO L857 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2021-11-07 00:57:42,267 INFO L853 garLoopResultBuilder]: At program point L6326(lines 1 7033) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,267 INFO L860 garLoopResultBuilder]: At program point L6227(lines 5979 6229) the Hoare annotation is: true [2021-11-07 00:57:42,267 INFO L857 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2021-11-07 00:57:42,268 INFO L857 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2021-11-07 00:57:42,268 INFO L853 garLoopResultBuilder]: At program point L7020(lines 7019 7021) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,268 INFO L853 garLoopResultBuilder]: At program point L5765-2(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,268 INFO L853 garLoopResultBuilder]: At program point L5765-3(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,269 INFO L853 garLoopResultBuilder]: At program point L5765(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,269 INFO L853 garLoopResultBuilder]: At program point L5765-1(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,270 INFO L853 garLoopResultBuilder]: At program point L5765-6(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,270 INFO L853 garLoopResultBuilder]: At program point L5765-4(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,270 INFO L853 garLoopResultBuilder]: At program point L5765-5(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,270 INFO L857 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2021-11-07 00:57:42,271 INFO L853 garLoopResultBuilder]: At program point L6922(lines 1 7033) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,271 INFO L853 garLoopResultBuilder]: At program point L6988(lines 6987 6989) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,271 INFO L857 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2021-11-07 00:57:42,272 INFO L857 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2021-11-07 00:57:42,272 INFO L857 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2021-11-07 00:57:42,272 INFO L857 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2021-11-07 00:57:42,272 INFO L857 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2021-11-07 00:57:42,272 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,273 INFO L853 garLoopResultBuilder]: At program point L6296(lines 6291 6298) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32))) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32))) (.cse2 (= ~ldv_mutex_lock~0 (_ bv1 32)))) (or (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) .cse0 .cse1 (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) .cse2 (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32))) (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)))) (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) .cse2))) [2021-11-07 00:57:42,273 INFO L857 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2021-11-07 00:57:42,278 INFO L857 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2021-11-07 00:57:42,279 INFO L857 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2021-11-07 00:57:42,279 INFO L857 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2021-11-07 00:57:42,279 INFO L857 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2021-11-07 00:57:42,279 INFO L853 garLoopResultBuilder]: At program point L7024(lines 7023 7025) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,280 INFO L857 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2021-11-07 00:57:42,280 INFO L857 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2021-11-07 00:57:42,280 INFO L857 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2021-11-07 00:57:42,280 INFO L853 garLoopResultBuilder]: At program point L6992(lines 6991 6993) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,280 INFO L857 garLoopResultBuilder]: For program point L6332-2(line 6332) no Hoare annotation was computed. [2021-11-07 00:57:42,281 INFO L857 garLoopResultBuilder]: For program point L6332-1(line 6332) no Hoare annotation was computed. [2021-11-07 00:57:42,281 INFO L857 garLoopResultBuilder]: For program point L6332(line 6332) no Hoare annotation was computed. [2021-11-07 00:57:42,281 INFO L857 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2021-11-07 00:57:42,281 INFO L857 garLoopResultBuilder]: For program point L6332-5(line 6332) no Hoare annotation was computed. [2021-11-07 00:57:42,281 INFO L857 garLoopResultBuilder]: For program point L6332-4(line 6332) no Hoare annotation was computed. [2021-11-07 00:57:42,282 INFO L857 garLoopResultBuilder]: For program point L6332-3(line 6332) no Hoare annotation was computed. [2021-11-07 00:57:42,282 INFO L857 garLoopResultBuilder]: For program point L6101(lines 6101 6108) no Hoare annotation was computed. [2021-11-07 00:57:42,282 INFO L857 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2021-11-07 00:57:42,282 INFO L853 garLoopResultBuilder]: At program point L6861(lines 6853 6863) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,282 INFO L857 garLoopResultBuilder]: For program point L6069(lines 6069 6077) no Hoare annotation was computed. [2021-11-07 00:57:42,283 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,283 INFO L857 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2021-11-07 00:57:42,283 INFO L857 garLoopResultBuilder]: For program point L6103(lines 6103 6106) no Hoare annotation was computed. [2021-11-07 00:57:42,283 INFO L857 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2021-11-07 00:57:42,285 INFO L853 garLoopResultBuilder]: At program point L7028(lines 7027 7029) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,285 INFO L853 garLoopResultBuilder]: At program point L5773(lines 5768 5775) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,285 INFO L857 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2021-11-07 00:57:42,286 INFO L857 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2021-11-07 00:57:42,286 INFO L857 garLoopResultBuilder]: For program point L6071(lines 6071 6075) no Hoare annotation was computed. [2021-11-07 00:57:42,286 INFO L853 garLoopResultBuilder]: At program point L5840-1(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,286 INFO L853 garLoopResultBuilder]: At program point L5840-2(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,287 INFO L853 garLoopResultBuilder]: At program point L5840(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,287 INFO L853 garLoopResultBuilder]: At program point L5840-3(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,287 INFO L857 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2021-11-07 00:57:42,287 INFO L857 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2021-11-07 00:57:42,287 INFO L857 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2021-11-07 00:57:42,288 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,288 INFO L857 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2021-11-07 00:57:42,288 INFO L857 garLoopResultBuilder]: For program point L6965(lines 6964 6982) no Hoare annotation was computed. [2021-11-07 00:57:42,288 INFO L857 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2021-11-07 00:57:42,288 INFO L857 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2021-11-07 00:57:42,288 INFO L857 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2021-11-07 00:57:42,289 INFO L853 garLoopResultBuilder]: At program point L5976(lines 5970 5978) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,289 INFO L857 garLoopResultBuilder]: For program point L6142(lines 6142 6150) no Hoare annotation was computed. [2021-11-07 00:57:42,289 INFO L857 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2021-11-07 00:57:42,289 INFO L857 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2021-11-07 00:57:42,289 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,290 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,290 INFO L857 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,290 INFO L857 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,290 INFO L857 garLoopResultBuilder]: For program point L-1-4(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,290 INFO L857 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,290 INFO L857 garLoopResultBuilder]: For program point L-1-6(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,291 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-11-07 00:57:42,291 INFO L853 garLoopResultBuilder]: At program point L-1-8(line -1) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,291 INFO L857 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,291 INFO L857 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2021-11-07 00:57:42,292 INFO L857 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2021-11-07 00:57:42,292 INFO L857 garLoopResultBuilder]: For program point L6111(lines 6111 6118) no Hoare annotation was computed. [2021-11-07 00:57:42,292 INFO L857 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2021-11-07 00:57:42,292 INFO L853 garLoopResultBuilder]: At program point L5781(lines 5776 5783) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,292 INFO L853 garLoopResultBuilder]: At program point L5781-1(lines 5776 5783) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-11-07 00:57:42,293 INFO L857 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2021-11-07 00:57:42,293 INFO L857 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2021-11-07 00:57:42,293 INFO L857 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2021-11-07 00:57:42,293 INFO L857 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2021-11-07 00:57:42,298 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:42,300 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 00:57:42,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:57:42 BoogieIcfgContainer [2021-11-07 00:57:42,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 00:57:42,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 00:57:42,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 00:57:42,369 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 00:57:42,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:56:55" (3/4) ... [2021-11-07 00:57:42,373 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 00:57:42,422 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2021-11-07 00:57:42,425 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-07 00:57:42,428 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-07 00:57:42,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 00:57:42,434 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 00:57:42,488 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) || ((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) [2021-11-07 00:57:42,489 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) && !~bvsge32(\result, 0bv32)) || (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) [2021-11-07 00:57:42,489 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 [2021-11-07 00:57:42,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 [2021-11-07 00:57:42,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 [2021-11-07 00:57:42,854 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 00:57:42,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 00:57:42,857 INFO L168 Benchmark]: Toolchain (without parser) took 53779.36 ms. Allocated memory was 65.0 MB in the beginning and 260.0 MB in the end (delta: 195.0 MB). Free memory was 36.4 MB in the beginning and 147.0 MB in the end (delta: -110.6 MB). Peak memory consumption was 188.3 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:42,857 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 65.0 MB. Free memory was 46.4 MB in the beginning and 46.3 MB in the end (delta: 51.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:57:42,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2187.78 ms. Allocated memory was 65.0 MB in the beginning and 167.8 MB in the end (delta: 102.8 MB). Free memory was 36.1 MB in the beginning and 110.6 MB in the end (delta: -74.5 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:42,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 195.37 ms. Allocated memory is still 167.8 MB. Free memory was 110.6 MB in the beginning and 102.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:42,859 INFO L168 Benchmark]: Boogie Preprocessor took 170.01 ms. Allocated memory is still 167.8 MB. Free memory was 102.3 MB in the beginning and 92.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:42,859 INFO L168 Benchmark]: RCFGBuilder took 4005.52 ms. Allocated memory is still 167.8 MB. Free memory was 92.8 MB in the beginning and 62.3 MB in the end (delta: 30.4 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:42,860 INFO L168 Benchmark]: TraceAbstraction took 46727.76 ms. Allocated memory was 167.8 MB in the beginning and 260.0 MB in the end (delta: 92.3 MB). Free memory was 62.3 MB in the beginning and 157.2 MB in the end (delta: -94.9 MB). Peak memory consumption was 111.9 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:42,860 INFO L168 Benchmark]: Witness Printer took 486.54 ms. Allocated memory is still 260.0 MB. Free memory was 157.2 MB in the beginning and 147.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 112.0 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:42,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 65.0 MB. Free memory was 46.4 MB in the beginning and 46.3 MB in the end (delta: 51.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2187.78 ms. Allocated memory was 65.0 MB in the beginning and 167.8 MB in the end (delta: 102.8 MB). Free memory was 36.1 MB in the beginning and 110.6 MB in the end (delta: -74.5 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 195.37 ms. Allocated memory is still 167.8 MB. Free memory was 110.6 MB in the beginning and 102.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 170.01 ms. Allocated memory is still 167.8 MB. Free memory was 102.3 MB in the beginning and 92.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4005.52 ms. Allocated memory is still 167.8 MB. Free memory was 92.8 MB in the beginning and 62.3 MB in the end (delta: 30.4 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 46727.76 ms. Allocated memory was 167.8 MB in the beginning and 260.0 MB in the end (delta: 92.3 MB). Free memory was 62.3 MB in the beginning and 157.2 MB in the end (delta: -94.9 MB). Peak memory consumption was 111.9 MB. Max. memory is 16.1 GB. * Witness Printer took 486.54 ms. Allocated memory is still 260.0 MB. Free memory was 157.2 MB in the beginning and 147.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 112.0 MB. Max. memory is 16.1 GB. * 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: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: 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 1 procedures, 157 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 46.5s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2389 SDtfs, 2554 SDslu, 3244 SDs, 0 SdLazy, 89 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2149 GetRequests, 2074 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred in iteration=7, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 669 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 48 PreInvPairs, 149 NumberOfFragments, 610 HoareAnnotationTreeSize, 48 FomulaSimplifications, 5047 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 48 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 18.4s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 1089 NumberOfCodeBlocks, 1089 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2138 ConstructedInterpolants, 0 QuantifiedInterpolants, 3207 SizeOfPredicates, 55 NumberOfNonLiveVariables, 25760 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 40 InterpolantComputations, 20 PerfectInterpolantSequences, 140/200 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 6 specifications checked. All of them hold - InvariantResult [Line: 7008]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7019]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7027]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5970]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6987]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5776]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6965]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5979]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7015]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6336]: Loop Invariant Derived loop invariant: ((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6853]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6940]: Loop Invariant Derived loop invariant: ((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) || ((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7023]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7004]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5768]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6962]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6307]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: (((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) && !~bvsge32(\result, 0bv32)) || (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7015]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6991]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7012]: Loop Invariant Derived loop invariant: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5776]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5948]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-11-07 00:57:42,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77c1cd8f-0341-4316-93b6-68829c083200/bin/utaipan-UUZaoUuFF8/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