./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:28:12,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:28:12,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:28:12,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:28:12,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:28:12,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:28:12,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:28:12,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:28:12,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:28:12,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:28:12,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:28:12,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:28:12,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:28:12,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:28:12,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:28:12,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:28:12,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:28:12,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:28:12,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:28:12,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:28:12,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:28:12,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:28:12,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:28:12,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:28:12,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:28:12,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:28:12,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:28:12,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:28:12,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:28:12,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:28:12,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:28:12,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:28:12,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:28:12,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:28:12,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:28:12,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:28:12,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:28:12,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:28:12,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:28:12,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:28:12,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:28:12,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:28:12,628 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:28:12,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:28:12,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:28:12,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:28:12,630 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:28:12,630 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:28:12,630 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:28:12,631 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:28:12,637 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:28:12,637 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:28:12,638 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:28:12,639 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:28:12,639 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:28:12,639 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:28:12,639 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:28:12,639 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:28:12,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:28:12,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:28:12,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:28:12,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:28:12,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:28:12,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:28:12,642 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:28:12,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:28:12,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:28:12,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:28:12,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:28:12,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:28:12,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:28:12,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:28:12,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:28:12,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:28:12,644 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:28:12,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:28:12,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:28:12,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:28:12,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:28:12,645 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2021-11-12 23:28:12,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:28:12,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:28:12,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:28:12,998 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:28:12,999 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:28:13,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-12 23:28:13,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data/d60a502aa/acbebc9c80c44b0d91938c36e9bfccf2/FLAG9a6c7292a [2021-11-12 23:28:14,199 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:28:14,200 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-12 23:28:14,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data/d60a502aa/acbebc9c80c44b0d91938c36e9bfccf2/FLAG9a6c7292a [2021-11-12 23:28:14,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data/d60a502aa/acbebc9c80c44b0d91938c36e9bfccf2 [2021-11-12 23:28:14,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:28:14,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:28:14,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:28:14,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:28:14,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:28:14,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:28:14" (1/1) ... [2021-11-12 23:28:14,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce31538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:14, skipping insertion in model container [2021-11-12 23:28:14,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:28:14" (1/1) ... [2021-11-12 23:28:14,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:28:14,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:28:16,975 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:28:16,985 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:28:17,759 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:28:17,768 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 23:28:18,673 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2021-11-12 23:28:18,676 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2021-11-12 23:28:18,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:28:18,731 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:28:18,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c1af793 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:18, skipping insertion in model container [2021-11-12 23:28:18,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:28:18,732 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:28:18,734 INFO L158 Benchmark]: Toolchain (without parser) took 4191.70ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 82.7MB in the beginning and 97.1MB in the end (delta: -14.3MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2021-11-12 23:28:18,735 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:28:18,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4189.47ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 82.4MB in the beginning and 97.1MB in the end (delta: -14.6MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2021-11-12 23:28:18,737 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4189.47ms. Allocated memory was 115.3MB in the beginning and 172.0MB in the end (delta: 56.6MB). Free memory was 82.4MB in the beginning and 97.1MB in the end (delta: -14.6MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4820]: 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:28:21,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:28:21,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:28:21,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:28:21,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:28:21,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:28:21,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:28:21,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:28:21,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:28:21,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:28:21,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:28:21,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:28:21,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:28:21,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:28:21,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:28:21,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:28:21,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:28:21,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:28:21,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:28:21,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:28:21,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:28:21,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:28:21,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:28:21,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:28:21,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:28:21,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:28:21,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:28:21,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:28:21,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:28:21,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:28:21,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:28:21,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:28:21,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:28:21,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:28:21,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:28:21,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:28:21,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:28:21,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:28:21,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:28:21,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:28:21,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:28:21,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:28:21,198 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:28:21,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:28:21,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:28:21,200 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:28:21,200 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:28:21,200 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:28:21,200 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:28:21,201 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:28:21,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:28:21,201 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:28:21,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:28:21,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:28:21,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:28:21,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:28:21,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:28:21,204 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:28:21,205 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:28:21,205 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:28:21,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:28:21,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:28:21,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:28:21,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:28:21,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:28:21,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:28:21,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:28:21,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:28:21,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:28:21,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:28:21,207 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:28:21,208 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:28:21,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:28:21,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:28:21,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:28:21,208 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2021-11-12 23:28:21,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:28:21,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:28:21,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:28:21,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:28:21,607 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:28:21,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-12 23:28:21,673 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data/847a5e36f/6e9a5c5069304430afc45dc7d12dc593/FLAGa0e9f3f5d [2021-11-12 23:28:22,793 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:28:22,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-12 23:28:22,853 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data/847a5e36f/6e9a5c5069304430afc45dc7d12dc593/FLAGa0e9f3f5d [2021-11-12 23:28:23,104 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/data/847a5e36f/6e9a5c5069304430afc45dc7d12dc593 [2021-11-12 23:28:23,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:28:23,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:28:23,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:28:23,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:28:23,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:28:23,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:28:23" (1/1) ... [2021-11-12 23:28:23,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da68b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:23, skipping insertion in model container [2021-11-12 23:28:23,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:28:23" (1/1) ... [2021-11-12 23:28:23,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:28:23,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:28:27,122 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2021-11-12 23:28:27,125 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2021-11-12 23:28:27,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:28:27,228 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:28:27,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:28:27,806 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2021-11-12 23:28:27,806 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2021-11-12 23:28:27,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:28:27,844 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:28:28,339 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2021-11-12 23:28:28,348 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_8ab67f31-f17a-4b97-b796-ff9a529b1779/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2021-11-12 23:28:28,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:28:28,677 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:28:28,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28 WrapperNode [2021-11-12 23:28:28,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:28:28,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:28:28,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:28:28,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:28:28,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:28,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:28:29,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:28:29,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:28:29,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:28:29,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:28:29,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:28:29,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:28:29,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:28:29,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (1/1) ... [2021-11-12 23:28:29,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:28:29,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:28:29,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:28:29,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:28:29,699 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2021-11-12 23:28:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2021-11-12 23:28:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2021-11-12 23:28:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2021-11-12 23:28:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:28:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:28:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2021-11-12 23:28:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2021-11-12 23:28:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2021-11-12 23:28:29,701 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2021-11-12 23:28:29,701 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-12 23:28:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-12 23:28:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:28:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:28:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2021-11-12 23:28:29,702 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2021-11-12 23:28:29,702 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2021-11-12 23:28:29,703 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2021-11-12 23:28:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-12 23:28:29,703 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-12 23:28:29,703 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2021-11-12 23:28:29,703 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2021-11-12 23:28:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2021-11-12 23:28:29,704 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2021-11-12 23:28:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2021-11-12 23:28:29,704 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2021-11-12 23:28:29,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2021-11-12 23:28:29,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2021-11-12 23:28:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2021-11-12 23:28:29,705 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2021-11-12 23:28:29,705 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2021-11-12 23:28:29,705 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2021-11-12 23:28:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2021-11-12 23:28:29,706 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2021-11-12 23:28:29,706 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2021-11-12 23:28:29,706 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2021-11-12 23:28:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2021-11-12 23:28:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2021-11-12 23:28:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2021-11-12 23:28:29,707 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2021-11-12 23:28:29,707 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2021-11-12 23:28:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2021-11-12 23:28:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-12 23:28:29,708 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2021-11-12 23:28:29,708 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2021-11-12 23:28:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2021-11-12 23:28:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2021-11-12 23:28:29,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:28:29,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:28:29,711 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-12 23:28:29,712 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-12 23:28:29,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:28:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:28:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:28:29,713 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2021-11-12 23:28:29,713 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2021-11-12 23:28:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 23:28:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:28:29,714 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-12 23:28:29,715 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-12 23:28:29,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:28:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_63 [2021-11-12 23:28:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_63 [2021-11-12 23:28:29,716 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2021-11-12 23:28:29,716 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2021-11-12 23:28:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-12 23:28:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-12 23:28:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 23:28:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 23:28:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-11-12 23:28:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-11-12 23:28:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2021-11-12 23:28:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2021-11-12 23:28:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2021-11-12 23:28:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2021-11-12 23:28:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2021-11-12 23:28:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2021-11-12 23:28:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2021-11-12 23:28:29,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2021-11-12 23:28:29,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_57 [2021-11-12 23:28:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_57 [2021-11-12 23:28:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-12 23:28:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-12 23:28:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2021-11-12 23:28:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2021-11-12 23:28:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-12 23:28:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-12 23:28:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2021-11-12 23:28:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2021-11-12 23:28:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2021-11-12 23:28:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2021-11-12 23:28:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2021-11-12 23:28:29,723 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2021-11-12 23:28:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:28:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:28:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2021-11-12 23:28:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2021-11-12 23:28:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2021-11-12 23:28:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2021-11-12 23:28:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2021-11-12 23:28:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2021-11-12 23:28:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 23:28:29,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 23:28:29,725 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2021-11-12 23:28:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2021-11-12 23:28:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:28:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:28:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2021-11-12 23:28:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2021-11-12 23:28:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2021-11-12 23:28:29,728 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2021-11-12 23:28:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2021-11-12 23:28:29,731 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2021-11-12 23:28:29,731 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-12 23:28:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-12 23:28:29,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:28:29,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:28:29,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 23:28:29,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 23:28:29,734 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2021-11-12 23:28:29,740 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2021-11-12 23:28:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-12 23:28:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-12 23:28:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2021-11-12 23:28:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2021-11-12 23:28:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 23:28:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-12 23:28:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2021-11-12 23:28:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2021-11-12 23:28:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:28:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-12 23:28:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-12 23:28:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-12 23:28:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-12 23:28:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-12 23:28:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-12 23:28:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-12 23:28:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-12 23:28:29,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-12 23:28:29,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-12 23:28:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:28:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2021-11-12 23:28:29,749 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:28:29,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:28:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-12 23:28:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-12 23:28:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-12 23:28:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-12 23:28:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2021-11-12 23:28:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2021-11-12 23:28:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-12 23:28:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-12 23:28:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2021-11-12 23:28:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2021-11-12 23:28:29,750 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2021-11-12 23:28:29,750 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2021-11-12 23:28:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-12 23:28:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-12 23:28:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 23:28:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 23:28:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2021-11-12 23:28:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2021-11-12 23:28:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-12 23:28:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-12 23:28:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2021-11-12 23:28:29,751 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2021-11-12 23:28:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:28:29,751 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2021-11-12 23:28:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2021-11-12 23:28:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2021-11-12 23:28:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2021-11-12 23:28:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:28:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:28:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2021-11-12 23:28:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2021-11-12 23:28:29,752 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-12 23:28:29,752 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-12 23:28:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2021-11-12 23:28:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2021-11-12 23:28:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:28:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2021-11-12 23:28:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2021-11-12 23:28:29,753 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-11-12 23:28:29,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-11-12 23:28:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:28:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:28:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:28:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:28:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:28:29,754 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2021-11-12 23:28:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2021-11-12 23:28:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:28:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:28:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2021-11-12 23:28:29,755 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2021-11-12 23:28:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-11-12 23:28:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-11-12 23:28:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-12 23:28:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-12 23:28:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2021-11-12 23:28:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2021-11-12 23:28:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2021-11-12 23:28:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2021-11-12 23:28:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-12 23:28:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-12 23:28:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-12 23:28:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-12 23:28:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2021-11-12 23:28:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2021-11-12 23:28:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2021-11-12 23:28:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2021-11-12 23:28:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-12 23:28:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-12 23:28:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2021-11-12 23:28:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2021-11-12 23:28:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-12 23:28:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-12 23:28:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2021-11-12 23:28:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2021-11-12 23:28:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:28:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:28:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2021-11-12 23:28:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2021-11-12 23:28:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2021-11-12 23:28:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2021-11-12 23:28:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2021-11-12 23:28:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2021-11-12 23:28:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2021-11-12 23:28:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2021-11-12 23:28:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-12 23:28:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-12 23:28:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2021-11-12 23:28:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2021-11-12 23:28:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:28:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 23:28:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 23:28:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2021-11-12 23:28:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2021-11-12 23:28:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-12 23:28:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-12 23:28:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2021-11-12 23:28:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2021-11-12 23:28:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:28:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-12 23:28:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-12 23:28:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2021-11-12 23:28:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2021-11-12 23:28:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:28:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:28:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:28:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:28:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:28:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-12 23:28:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-12 23:28:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-12 23:28:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-12 23:28:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2021-11-12 23:28:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2021-11-12 23:28:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-12 23:28:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-12 23:28:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:28:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:28:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2021-11-12 23:28:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2021-11-12 23:28:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2021-11-12 23:28:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2021-11-12 23:28:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 23:28:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 23:28:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-12 23:28:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-12 23:28:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2021-11-12 23:28:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2021-11-12 23:28:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_86 [2021-11-12 23:28:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_86 [2021-11-12 23:28:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2021-11-12 23:28:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2021-11-12 23:28:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_64 [2021-11-12 23:28:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_64 [2021-11-12 23:28:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2021-11-12 23:28:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2021-11-12 23:28:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2021-11-12 23:28:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2021-11-12 23:28:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_58 [2021-11-12 23:28:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_58 [2021-11-12 23:28:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:28:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:28:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2021-11-12 23:28:29,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2021-11-12 23:28:29,770 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2021-11-12 23:28:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2021-11-12 23:28:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-12 23:28:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-12 23:28:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2021-11-12 23:28:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2021-11-12 23:28:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-12 23:28:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-12 23:28:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2021-11-12 23:28:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2021-11-12 23:28:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2021-11-12 23:28:29,772 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2021-11-12 23:28:29,772 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2021-11-12 23:28:29,773 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2021-11-12 23:28:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:28:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:28:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:28:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:28:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:28:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:28:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_87 [2021-11-12 23:28:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_87 [2021-11-12 23:28:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2021-11-12 23:28:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2021-11-12 23:28:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2021-11-12 23:28:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2021-11-12 23:28:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-11-12 23:28:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-11-12 23:28:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2021-11-12 23:28:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2021-11-12 23:28:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-12 23:28:29,775 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-12 23:28:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2021-11-12 23:28:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2021-11-12 23:28:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-12 23:28:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-12 23:28:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2021-11-12 23:28:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2021-11-12 23:28:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-12 23:28:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-12 23:28:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-12 23:28:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-12 23:28:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-12 23:28:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-12 23:28:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-12 23:28:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-12 23:28:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2021-11-12 23:28:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2021-11-12 23:28:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:28:29,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:28:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2021-11-12 23:28:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2021-11-12 23:28:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-12 23:28:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-12 23:28:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-12 23:28:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-12 23:28:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2021-11-12 23:28:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2021-11-12 23:28:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2021-11-12 23:28:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2021-11-12 23:28:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2021-11-12 23:28:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2021-11-12 23:28:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 23:28:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 23:28:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-12 23:28:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-12 23:28:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-12 23:28:31,413 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:28:38,477 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2021-11-12 23:30:13,269 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 23:30:15,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:30:15,284 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-12 23:30:15,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:30:15 BoogieIcfgContainer [2021-11-12 23:30:15,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:30:15,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:30:15,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:30:15,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:30:15,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:28:23" (1/3) ... [2021-11-12 23:30:15,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c11e952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:30:15, skipping insertion in model container [2021-11-12 23:30:15,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:28:28" (2/3) ... [2021-11-12 23:30:15,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c11e952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:30:15, skipping insertion in model container [2021-11-12 23:30:15,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:30:15" (3/3) ... [2021-11-12 23:30:15,299 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2021-11-12 23:30:15,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:30:15,305 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:30:15,368 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:30:15,375 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:30:15,375 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:30:15,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 3212 states, 2125 states have (on average 1.299294117647059) internal successors, (2761), 2175 states have internal predecessors, (2761), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) [2021-11-12 23:30:15,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2021-11-12 23:30:15,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:15,531 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:15,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:30:15,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:15,538 INFO L85 PathProgramCache]: Analyzing trace with hash 702184163, now seen corresponding path program 1 times [2021-11-12 23:30:15,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:15,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562957332] [2021-11-12 23:30:15,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:15,574 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:15,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:15,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:15,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:30:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:30,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 3351 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:30:30,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8653 trivial. 0 not checked. [2021-11-12 23:30:31,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8659 trivial. 0 not checked. [2021-11-12 23:30:33,146 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:30:33,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562957332] [2021-11-12 23:30:33,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562957332] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:30:33,148 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:30:33,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:30:33,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292605775] [2021-11-12 23:30:33,152 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:30:33,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:30:33,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:30:33,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:30:33,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:30:33,211 INFO L87 Difference]: Start difference. First operand has 3212 states, 2125 states have (on average 1.299294117647059) internal successors, (2761), 2175 states have internal predecessors, (2761), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) Second operand has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-12 23:30:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:33,538 INFO L93 Difference]: Finished difference Result 6290 states and 9131 transitions. [2021-11-12 23:30:33,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:30:33,544 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 595 [2021-11-12 23:30:33,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:33,618 INFO L225 Difference]: With dead ends: 6290 [2021-11-12 23:30:33,619 INFO L226 Difference]: Without dead ends: 3140 [2021-11-12 23:30:33,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1188 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:30:33,673 INFO L933 BasicCegarLoop]: 4503 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4503 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:33,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4503 Invalid, 0 Unknown, 0 Unchecked, 26.27ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:30:33,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2021-11-12 23:30:34,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2021-11-12 23:30:34,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 2085 states have (on average 1.2719424460431654) internal successors, (2652), 2132 states have internal predecessors, (2652), 892 states have call successors, (892), 162 states have call predecessors, (892), 162 states have return successors, (892), 886 states have call predecessors, (892), 892 states have call successors, (892) [2021-11-12 23:30:34,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4436 transitions. [2021-11-12 23:30:34,076 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4436 transitions. Word has length 595 [2021-11-12 23:30:34,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:30:34,082 INFO L470 AbstractCegarLoop]: Abstraction has 3140 states and 4436 transitions. [2021-11-12 23:30:34,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-12 23:30:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4436 transitions. [2021-11-12 23:30:34,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2021-11-12 23:30:34,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:34,123 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:34,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:34,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:30:34,337 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:30:34,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:34,338 INFO L85 PathProgramCache]: Analyzing trace with hash 976943777, now seen corresponding path program 1 times [2021-11-12 23:30:34,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:34,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051684027] [2021-11-12 23:30:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:34,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:34,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:34,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:34,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:30:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:48,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 3351 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:30:48,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2021-11-12 23:30:50,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8659 trivial. 0 not checked. [2021-11-12 23:30:51,564 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:30:51,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051684027] [2021-11-12 23:30:51,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051684027] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:30:51,564 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:30:51,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 23:30:51,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696916341] [2021-11-12 23:30:51,565 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:30:51,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:30:51,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:30:51,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:30:51,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:30:51,570 INFO L87 Difference]: Start difference. First operand 3140 states and 4436 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2021-11-12 23:30:54,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:30:54,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:54,989 INFO L93 Difference]: Finished difference Result 8994 states and 12681 transitions. [2021-11-12 23:30:54,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:30:54,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 595 [2021-11-12 23:30:54,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:55,073 INFO L225 Difference]: With dead ends: 8994 [2021-11-12 23:30:55,073 INFO L226 Difference]: Without dead ends: 5947 [2021-11-12 23:30:55,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:30:55,108 INFO L933 BasicCegarLoop]: 5254 mSDtfsCounter, 3925 mSDsluCounter, 4399 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2758.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3925 SdHoareTripleChecker+Valid, 9653 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 62.00ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2925.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:55,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3925 Valid, 9653 Invalid, 44 Unknown, 0 Unchecked, 62.00ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 2925.95ms Time] [2021-11-12 23:30:55,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2021-11-12 23:30:55,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 5943. [2021-11-12 23:30:55,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 3957 states have (on average 1.274197624462977) internal successors, (5042), 4048 states have internal predecessors, (5042), 1666 states have call successors, (1666), 319 states have call predecessors, (1666), 319 states have return successors, (1666), 1652 states have call predecessors, (1666), 1666 states have call successors, (1666) [2021-11-12 23:30:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 8374 transitions. [2021-11-12 23:30:55,575 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 8374 transitions. Word has length 595 [2021-11-12 23:30:55,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:30:55,581 INFO L470 AbstractCegarLoop]: Abstraction has 5943 states and 8374 transitions. [2021-11-12 23:30:55,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2021-11-12 23:30:55,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 8374 transitions. [2021-11-12 23:30:55,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2021-11-12 23:30:55,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:55,657 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 44, 44, 44, 44, 44, 44, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:55,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:55,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:30:55,869 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:30:55,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:55,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1760085157, now seen corresponding path program 1 times [2021-11-12 23:30:55,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:55,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754096342] [2021-11-12 23:30:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:55,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:55,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:55,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:55,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:31:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:09,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 3382 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:31:09,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 8805 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 8535 trivial. 0 not checked. [2021-11-12 23:31:11,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 8805 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8802 trivial. 0 not checked. [2021-11-12 23:31:13,072 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:31:13,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754096342] [2021-11-12 23:31:13,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754096342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:13,072 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:13,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:31:13,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141935429] [2021-11-12 23:31:13,074 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:13,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:31:13,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:31:13,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:31:13,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:31:13,077 INFO L87 Difference]: Start difference. First operand 5943 states and 8374 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 4 states have call successors, (82), 3 states have call predecessors, (82), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) [2021-11-12 23:31:15,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:31:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:32,692 INFO L93 Difference]: Finished difference Result 20201 states and 28447 transitions. [2021-11-12 23:31:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:31:32,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 4 states have call successors, (82), 3 states have call predecessors, (82), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) Word has length 618 [2021-11-12 23:31:32,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:32,855 INFO L225 Difference]: With dead ends: 20201 [2021-11-12 23:31:32,856 INFO L226 Difference]: Without dead ends: 14351 [2021-11-12 23:31:32,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 1232 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:31:32,905 INFO L933 BasicCegarLoop]: 6030 mSDtfsCounter, 10552 mSDsluCounter, 6730 mSDsCounter, 0 mSdLazyCounter, 1810 mSolverCounterSat, 1550 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16974.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10552 SdHoareTripleChecker+Valid, 12760 SdHoareTripleChecker+Invalid, 3361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 88.57ms SdHoareTripleChecker+Time, 1550 IncrementalHoareTripleChecker+Valid, 1810 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18682.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:32,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10552 Valid, 12760 Invalid, 3361 Unknown, 0 Unchecked, 88.57ms Time], IncrementalHoareTripleChecker [1550 Valid, 1810 Invalid, 1 Unknown, 0 Unchecked, 18682.20ms Time] [2021-11-12 23:31:32,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14351 states. [2021-11-12 23:31:33,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14351 to 14347. [2021-11-12 23:31:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14347 states, 9547 states have (on average 1.277050382319053) internal successors, (12192), 9766 states have internal predecessors, (12192), 4003 states have call successors, (4003), 796 states have call predecessors, (4003), 796 states have return successors, (4003), 3971 states have call predecessors, (4003), 4003 states have call successors, (4003) [2021-11-12 23:31:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14347 states to 14347 states and 20198 transitions. [2021-11-12 23:31:34,008 INFO L78 Accepts]: Start accepts. Automaton has 14347 states and 20198 transitions. Word has length 618 [2021-11-12 23:31:34,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:34,011 INFO L470 AbstractCegarLoop]: Abstraction has 14347 states and 20198 transitions. [2021-11-12 23:31:34,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 4 states have call successors, (82), 3 states have call predecessors, (82), 3 states have return successors, (79), 4 states have call predecessors, (79), 4 states have call successors, (79) [2021-11-12 23:31:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 14347 states and 20198 transitions. [2021-11-12 23:31:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2021-11-12 23:31:34,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:34,052 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:34,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:34,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:31:34,277 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:31:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:34,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1304848775, now seen corresponding path program 1 times [2021-11-12 23:31:34,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:31:34,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572085505] [2021-11-12 23:31:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:34,289 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:31:34,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:31:34,290 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:31:34,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:31:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:48,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 3574 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:31:48,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:50,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2021-11-12 23:31:50,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8659 trivial. 0 not checked. [2021-11-12 23:31:51,896 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:31:51,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572085505] [2021-11-12 23:31:51,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572085505] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:51,897 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:51,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:31:51,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930771309] [2021-11-12 23:31:51,898 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:51,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:31:51,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:31:51,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:31:51,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:31:51,901 INFO L87 Difference]: Start difference. First operand 14347 states and 20198 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-12 23:31:54,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:32:10,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:10,583 INFO L93 Difference]: Finished difference Result 50763 states and 71334 transitions. [2021-11-12 23:32:10,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:32:10,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) Word has length 624 [2021-11-12 23:32:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:10,936 INFO L225 Difference]: With dead ends: 50763 [2021-11-12 23:32:10,936 INFO L226 Difference]: Without dead ends: 36509 [2021-11-12 23:32:11,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1246 GetRequests, 1244 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:32:11,057 INFO L933 BasicCegarLoop]: 6038 mSDtfsCounter, 11006 mSDsluCounter, 6712 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 1654 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15772.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11006 SdHoareTripleChecker+Valid, 12750 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.07ms SdHoareTripleChecker+Time, 1654 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17385.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:11,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11006 Valid, 12750 Invalid, 3531 Unknown, 0 Unchecked, 57.07ms Time], IncrementalHoareTripleChecker [1654 Valid, 1876 Invalid, 1 Unknown, 0 Unchecked, 17385.55ms Time] [2021-11-12 23:32:11,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36509 states. [2021-11-12 23:32:13,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36509 to 36489. [2021-11-12 23:32:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36489 states, 24349 states have (on average 1.2767259435705778) internal successors, (31087), 24924 states have internal predecessors, (31087), 10055 states have call successors, (10055), 2084 states have call predecessors, (10055), 2084 states have return successors, (10059), 9971 states have call predecessors, (10059), 10055 states have call successors, (10059) [2021-11-12 23:32:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36489 states to 36489 states and 51201 transitions. [2021-11-12 23:32:13,687 INFO L78 Accepts]: Start accepts. Automaton has 36489 states and 51201 transitions. Word has length 624 [2021-11-12 23:32:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:32:13,688 INFO L470 AbstractCegarLoop]: Abstraction has 36489 states and 51201 transitions. [2021-11-12 23:32:13,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 4 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-12 23:32:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 36489 states and 51201 transitions. [2021-11-12 23:32:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2021-11-12 23:32:13,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:32:13,727 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:32:13,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:32:13,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:32:13,941 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:32:13,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:32:13,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1984562345, now seen corresponding path program 1 times [2021-11-12 23:32:13,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:32:13,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041994944] [2021-11-12 23:32:13,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:32:13,951 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:32:13,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:32:13,952 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:32:13,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:32:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:32:27,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 3606 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:32:27,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:32:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2021-11-12 23:32:29,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:32:31,375 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8659 trivial. 0 not checked. [2021-11-12 23:32:31,375 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:32:31,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041994944] [2021-11-12 23:32:31,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041994944] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:32:31,375 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:32:31,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:32:31,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328846981] [2021-11-12 23:32:31,376 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:32:31,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:32:31,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:32:31,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:32:31,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:32:31,377 INFO L87 Difference]: Start difference. First operand 36489 states and 51201 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-12 23:32:34,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:32:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:51,863 INFO L93 Difference]: Finished difference Result 136783 states and 191647 transitions. [2021-11-12 23:32:51,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:32:51,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) Word has length 625 [2021-11-12 23:32:51,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:52,982 INFO L225 Difference]: With dead ends: 136783 [2021-11-12 23:32:52,983 INFO L226 Difference]: Without dead ends: 100387 [2021-11-12 23:32:53,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1248 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:32:53,197 INFO L933 BasicCegarLoop]: 6229 mSDtfsCounter, 10826 mSDsluCounter, 6708 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 1612 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15840.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10826 SdHoareTripleChecker+Valid, 12937 SdHoareTripleChecker+Invalid, 3489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.68ms SdHoareTripleChecker+Time, 1612 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17326.34ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:53,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10826 Valid, 12937 Invalid, 3489 Unknown, 0 Unchecked, 46.68ms Time], IncrementalHoareTripleChecker [1612 Valid, 1876 Invalid, 1 Unknown, 0 Unchecked, 17326.34ms Time] [2021-11-12 23:32:53,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100387 states. [2021-11-12 23:32:59,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100387 to 100359. [2021-11-12 23:32:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100359 states, 67053 states have (on average 1.2760801157293484) internal successors, (85565), 68696 states have internal predecessors, (85565), 27413 states have call successors, (27413), 5892 states have call predecessors, (27413), 5892 states have return successors, (27437), 27173 states have call predecessors, (27437), 27413 states have call successors, (27437) [2021-11-12 23:33:00,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100359 states to 100359 states and 140415 transitions. [2021-11-12 23:33:00,604 INFO L78 Accepts]: Start accepts. Automaton has 100359 states and 140415 transitions. Word has length 625 [2021-11-12 23:33:00,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:00,606 INFO L470 AbstractCegarLoop]: Abstraction has 100359 states and 140415 transitions. [2021-11-12 23:33:00,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 4 states have call successors, (73) [2021-11-12 23:33:00,606 INFO L276 IsEmpty]: Start isEmpty. Operand 100359 states and 140415 transitions. [2021-11-12 23:33:00,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2021-11-12 23:33:00,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:00,705 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:33:00,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:33:00,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:00,921 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:33:00,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:00,922 INFO L85 PathProgramCache]: Analyzing trace with hash -730515114, now seen corresponding path program 1 times [2021-11-12 23:33:00,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:00,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665020257] [2021-11-12 23:33:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:00,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:00,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:00,939 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:00,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ab67f31-f17a-4b97-b796-ff9a529b1779/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:33:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:16,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 3588 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:33:16,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 8661 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8529 trivial. 0 not checked. [2021-11-12 23:33:18,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 8661 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8661 trivial. 0 not checked. [2021-11-12 23:33:19,907 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:19,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665020257] [2021-11-12 23:33:19,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665020257] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:33:19,908 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:33:19,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 23:33:19,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745102675] [2021-11-12 23:33:19,908 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:19,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:33:19,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:19,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:33:19,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:19,911 INFO L87 Difference]: Start difference. First operand 100359 states and 140415 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 4 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 4 states have call predecessors, (83), 4 states have call successors, (83) [2021-11-12 23:33:22,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:33:43,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:43,341 INFO L93 Difference]: Finished difference Result 366057 states and 510635 transitions. [2021-11-12 23:33:43,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:33:43,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 4 states have call successors, (87), 3 states have call predecessors, (87), 3 states have return successors, (83), 4 states have call predecessors, (83), 4 states have call successors, (83) Word has length 644 [2021-11-12 23:33:43,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:45,395 INFO L225 Difference]: With dead ends: 366057 [2021-11-12 23:33:45,396 INFO L226 Difference]: Without dead ends: 265791 [2021-11-12 23:33:46,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1286 GetRequests, 1284 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:33:46,273 INFO L933 BasicCegarLoop]: 7157 mSDtfsCounter, 8004 mSDsluCounter, 8297 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13406.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8004 SdHoareTripleChecker+Valid, 15454 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.48ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14394.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:46,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8004 Valid, 15454 Invalid, 1918 Unknown, 0 Unchecked, 38.48ms Time], IncrementalHoareTripleChecker [39 Valid, 1878 Invalid, 1 Unknown, 0 Unchecked, 14394.69ms Time] [2021-11-12 23:33:46,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265791 states.