./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0134.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0134.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0134.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:41:33,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:41:33,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:41:33,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:41:33,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:41:33,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:41:33,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:41:33,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:41:33,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:41:33,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:41:33,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:41:33,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:41:33,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:41:33,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:41:33,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:41:33,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:41:33,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:41:33,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:41:33,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:41:33,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:41:33,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:41:33,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:41:33,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:41:33,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:41:33,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:41:33,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:41:33,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:41:33,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:41:33,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:41:33,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:41:33,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:41:33,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:41:33,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:41:33,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:41:33,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:41:33,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:41:33,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:41:33,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:41:33,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:41:33,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:41:33,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:41:33,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 04:41:34,026 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:41:34,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:41:34,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:41:34,028 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:41:34,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:41:34,029 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:41:34,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:41:34,029 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:41:34,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:41:34,030 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:41:34,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:41:34,031 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:41:34,031 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:41:34,031 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:41:34,031 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:41:34,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:41:34,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:41:34,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:41:34,033 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:41:34,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:41:34,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:41:34,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:41:34,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:41:34,035 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:41:34,035 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:41:34,035 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:41:34,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:41:34,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:41:34,036 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:41:34,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:41:34,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:41:34,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:41:34,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:41:34,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:41:34,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:41:34,038 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:41:34,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:41:34,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:41:34,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:41:34,040 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_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c [2021-10-29 04:41:34,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:41:34,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:41:34,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:41:34,407 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:41:34,409 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:41:34,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/memsafety/test-0134.i [2021-10-29 04:41:34,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data/a18ff209f/11a3d1ea4f6b49d1b530def2edec782d/FLAG3b6070425 [2021-10-29 04:41:35,074 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:41:35,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/sv-benchmarks/c/memsafety/test-0134.i [2021-10-29 04:41:35,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data/a18ff209f/11a3d1ea4f6b49d1b530def2edec782d/FLAG3b6070425 [2021-10-29 04:41:35,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data/a18ff209f/11a3d1ea4f6b49d1b530def2edec782d [2021-10-29 04:41:35,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:41:35,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:41:35,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:41:35,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:41:35,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:41:35,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:41:35" (1/1) ... [2021-10-29 04:41:35,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11be86f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:35, skipping insertion in model container [2021-10-29 04:41:35,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:41:35" (1/1) ... [2021-10-29 04:41:35,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:41:35,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:41:35,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:41:35,826 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) [2021-10-29 04:41:35,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6cf34a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:35, skipping insertion in model container [2021-10-29 04:41:35,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:41:35,828 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:41:35,831 INFO L168 Benchmark]: Toolchain (without parser) took 474.60 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 79.3 MB in the end (delta: -28.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:41:35,831 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:41:35,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.74 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.7 MB in the beginning and 79.3 MB in the end (delta: -28.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:41:35,834 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 471.74 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.7 MB in the beginning and 79.3 MB in the end (delta: -28.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 585]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:41:38,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:41:38,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:41:38,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:41:38,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:41:38,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:41:38,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:41:38,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:41:38,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:41:38,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:41:38,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:41:38,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:41:38,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:41:38,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:41:38,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:41:38,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:41:38,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:41:38,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:41:38,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:41:38,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:41:38,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:41:38,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:41:38,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:41:38,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:41:38,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:41:38,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:41:38,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:41:38,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:41:38,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:41:38,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:41:38,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:41:38,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:41:38,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:41:38,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:41:38,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:41:38,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:41:38,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:41:38,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:41:38,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:41:38,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:41:38,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:41:38,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 04:41:38,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:41:38,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:41:38,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:41:38,656 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:41:38,656 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:41:38,656 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:41:38,657 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:41:38,657 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:41:38,657 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:41:38,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:41:38,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:41:38,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:41:38,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:41:38,661 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:41:38,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:41:38,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:41:38,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:41:38,662 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:41:38,662 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:41:38,663 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:41:38,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:41:38,663 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:41:38,663 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:41:38,664 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:41:38,664 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:41:38,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:41:38,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:41:38,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:41:38,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:41:38,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:41:38,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:41:38,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:41:38,666 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:41:38,666 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:41:38,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:41:38,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:41:38,667 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_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c [2021-10-29 04:41:39,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:41:39,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:41:39,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:41:39,190 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:41:39,191 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:41:39,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/memsafety/test-0134.i [2021-10-29 04:41:39,285 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data/9640d7748/7cee30b72cdb450eb670bf55314307a3/FLAG2cb63957e [2021-10-29 04:41:40,036 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:41:40,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/sv-benchmarks/c/memsafety/test-0134.i [2021-10-29 04:41:40,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data/9640d7748/7cee30b72cdb450eb670bf55314307a3/FLAG2cb63957e [2021-10-29 04:41:40,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/data/9640d7748/7cee30b72cdb450eb670bf55314307a3 [2021-10-29 04:41:40,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:41:40,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:41:40,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:41:40,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:41:40,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:41:40,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:40,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0399f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40, skipping insertion in model container [2021-10-29 04:41:40,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:40,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:41:40,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:41:40,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:41:40,782 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:41:40,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:41:40,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:41:40,848 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:41:40,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:41:40,970 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:41:40,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40 WrapperNode [2021-10-29 04:41:40,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:41:40,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:41:40,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:41:40,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:41:40,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:41:41,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:41:41,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:41:41,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:41:41,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:41:41,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:41:41,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:41:41,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:41:41,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (1/1) ... [2021-10-29 04:41:41,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:41:41,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:41:41,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:41:41,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:41:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 04:41:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:41:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 04:41:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:41:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 04:41:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:41:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:41:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 04:41:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:41:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:41:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:41:42,580 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:41:42,580 INFO L299 CfgBuilder]: Removed 46 assume(true) statements. [2021-10-29 04:41:42,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:41:42 BoogieIcfgContainer [2021-10-29 04:41:42,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:41:42,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:41:42,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:41:42,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:41:42,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:41:40" (1/3) ... [2021-10-29 04:41:42,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184069c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:41:42, skipping insertion in model container [2021-10-29 04:41:42,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:41:40" (2/3) ... [2021-10-29 04:41:42,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184069c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:41:42, skipping insertion in model container [2021-10-29 04:41:42,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:41:42" (3/3) ... [2021-10-29 04:41:42,592 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0134.i [2021-10-29 04:41:42,598 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:41:42,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2021-10-29 04:41:42,665 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:41:42,676 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-10-29 04:41:42,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2021-10-29 04:41:42,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 86 states have (on average 2.0232558139534884) internal successors, (174), 162 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:41:42,704 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:41:42,705 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:41:42,705 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:41:42,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:41:42,712 INFO L85 PathProgramCache]: Analyzing trace with hash 28694792, now seen corresponding path program 1 times [2021-10-29 04:41:42,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:41:42,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46759084] [2021-10-29 04:41:42,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:41:42,730 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:41:42,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:41:42,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:41:42,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:41:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:41:42,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:41:42,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:41:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:42,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:41:42,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:42,978 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:41:42,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46759084] [2021-10-29 04:41:42,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46759084] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:41:42,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:41:42,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:41:42,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714388540] [2021-10-29 04:41:42,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:41:42,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:41:43,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:41:43,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:41:43,033 INFO L87 Difference]: Start difference. First operand has 163 states, 86 states have (on average 2.0232558139534884) internal successors, (174), 162 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:43,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:41:43,076 INFO L93 Difference]: Finished difference Result 163 states and 169 transitions. [2021-10-29 04:41:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:41:43,078 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 04:41:43,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:41:43,095 INFO L225 Difference]: With dead ends: 163 [2021-10-29 04:41:43,095 INFO L226 Difference]: Without dead ends: 161 [2021-10-29 04:41:43,097 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:41:43,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-10-29 04:41:43,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-10-29 04:41:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 85 states have (on average 1.964705882352941) internal successors, (167), 160 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 167 transitions. [2021-10-29 04:41:43,166 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 167 transitions. Word has length 5 [2021-10-29 04:41:43,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:41:43,167 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 167 transitions. [2021-10-29 04:41:43,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:43,167 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 167 transitions. [2021-10-29 04:41:43,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:41:43,168 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:41:43,168 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:41:43,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:41:43,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:41:43,387 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:41:43,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:41:43,389 INFO L85 PathProgramCache]: Analyzing trace with hash 28694854, now seen corresponding path program 1 times [2021-10-29 04:41:43,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:41:43,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509842545] [2021-10-29 04:41:43,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:41:43,391 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:41:43,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:41:43,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:41:43,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:41:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:41:43,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:41:43,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:41:43,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 04:41:43,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:43,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:41:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:43,583 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:41:43,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509842545] [2021-10-29 04:41:43,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509842545] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:41:43,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:41:43,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:41:43,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956127818] [2021-10-29 04:41:43,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:41:43,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:41:43,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:41:43,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:41:43,588 INFO L87 Difference]: Start difference. First operand 161 states and 167 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:43,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:41:43,988 INFO L93 Difference]: Finished difference Result 183 states and 189 transitions. [2021-10-29 04:41:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:41:43,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 04:41:43,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:41:43,992 INFO L225 Difference]: With dead ends: 183 [2021-10-29 04:41:43,992 INFO L226 Difference]: Without dead ends: 183 [2021-10-29 04:41:43,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:41:43,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-29 04:41:44,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 160. [2021-10-29 04:41:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 85 states have (on average 1.9529411764705882) internal successors, (166), 159 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 166 transitions. [2021-10-29 04:41:44,007 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 166 transitions. Word has length 5 [2021-10-29 04:41:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:41:44,008 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 166 transitions. [2021-10-29 04:41:44,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 166 transitions. [2021-10-29 04:41:44,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:41:44,009 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:41:44,009 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:41:44,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:41:44,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:41:44,223 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:41:44,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:41:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash 28694855, now seen corresponding path program 1 times [2021-10-29 04:41:44,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:41:44,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118054146] [2021-10-29 04:41:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:41:44,226 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:41:44,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:41:44,227 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:41:44,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:41:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:41:44,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:41:44,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:41:44,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 04:41:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:44,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:41:44,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:44,453 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:41:44,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118054146] [2021-10-29 04:41:44,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118054146] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:41:44,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:41:44,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:41:44,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433157409] [2021-10-29 04:41:44,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:41:44,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:41:44,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:41:44,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:41:44,457 INFO L87 Difference]: Start difference. First operand 160 states and 166 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:45,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:41:45,209 INFO L93 Difference]: Finished difference Result 182 states and 188 transitions. [2021-10-29 04:41:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:41:45,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 04:41:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:41:45,214 INFO L225 Difference]: With dead ends: 182 [2021-10-29 04:41:45,214 INFO L226 Difference]: Without dead ends: 182 [2021-10-29 04:41:45,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:41:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-29 04:41:45,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 159. [2021-10-29 04:41:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 85 states have (on average 1.9411764705882353) internal successors, (165), 158 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 165 transitions. [2021-10-29 04:41:45,244 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 165 transitions. Word has length 5 [2021-10-29 04:41:45,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:41:45,245 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 165 transitions. [2021-10-29 04:41:45,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:45,245 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 165 transitions. [2021-10-29 04:41:45,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:41:45,245 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:41:45,246 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:41:45,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:41:45,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:41:45,446 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:41:45,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:41:45,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1805950471, now seen corresponding path program 1 times [2021-10-29 04:41:45,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:41:45,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591614814] [2021-10-29 04:41:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:41:45,448 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:41:45,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:41:45,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:41:45,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:41:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:41:45,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:41:45,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:41:45,668 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 04:41:45,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-29 04:41:46,021 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-29 04:41:46,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-10-29 04:41:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:46,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:41:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:48,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:41:48,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591614814] [2021-10-29 04:41:48,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591614814] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:41:48,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:41:48,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 04:41:48,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950630614] [2021-10-29 04:41:48,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:41:48,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:41:48,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:41:48,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2021-10-29 04:41:48,445 INFO L87 Difference]: Start difference. First operand 159 states and 165 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:41:49,279 INFO L93 Difference]: Finished difference Result 180 states and 186 transitions. [2021-10-29 04:41:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:41:49,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-29 04:41:49,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:41:49,281 INFO L225 Difference]: With dead ends: 180 [2021-10-29 04:41:49,282 INFO L226 Difference]: Without dead ends: 180 [2021-10-29 04:41:49,282 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=22, Invalid=33, Unknown=1, NotChecked=0, Total=56 [2021-10-29 04:41:49,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-29 04:41:49,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 158. [2021-10-29 04:41:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 87 states have (on average 1.896551724137931) internal successors, (165), 157 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 165 transitions. [2021-10-29 04:41:49,293 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 165 transitions. Word has length 7 [2021-10-29 04:41:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:41:49,294 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 165 transitions. [2021-10-29 04:41:49,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:41:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 165 transitions. [2021-10-29 04:41:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:41:49,295 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:41:49,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:41:49,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:41:49,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:41:49,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:41:49,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:41:49,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1805950472, now seen corresponding path program 1 times [2021-10-29 04:41:49,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:41:49,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180106663] [2021-10-29 04:41:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:41:49,512 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:41:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:41:49,513 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:41:49,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:41:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:41:49,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 04:41:49,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:41:49,757 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-29 04:41:49,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2021-10-29 04:41:49,850 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 04:41:49,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 63 [2021-10-29 04:41:50,208 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-29 04:41:50,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 51 [2021-10-29 04:41:50,247 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-29 04:41:50,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 64 [2021-10-29 04:41:51,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:51,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:41:53,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:41:53,622 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:41:53,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180106663] [2021-10-29 04:41:53,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180106663] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:41:53,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:41:53,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-29 04:41:53,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54589248] [2021-10-29 04:41:53,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:41:53,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:41:53,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:41:53,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2021-10-29 04:41:53,625 INFO L87 Difference]: Start difference. First operand 158 states and 165 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:00,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:00,131 INFO L93 Difference]: Finished difference Result 194 states and 200 transitions. [2021-10-29 04:42:00,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 04:42:00,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-29 04:42:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:00,133 INFO L225 Difference]: With dead ends: 194 [2021-10-29 04:42:00,133 INFO L226 Difference]: Without dead ends: 194 [2021-10-29 04:42:00,134 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=76, Invalid=133, Unknown=1, NotChecked=0, Total=210 [2021-10-29 04:42:00,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-29 04:42:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 154. [2021-10-29 04:42:00,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 87 states have (on average 1.839080459770115) internal successors, (160), 153 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 160 transitions. [2021-10-29 04:42:00,142 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 160 transitions. Word has length 7 [2021-10-29 04:42:00,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:00,142 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 160 transitions. [2021-10-29 04:42:00,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 160 transitions. [2021-10-29 04:42:00,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:42:00,143 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:00,144 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:00,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:00,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:00,369 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:00,370 INFO L85 PathProgramCache]: Analyzing trace with hash 351614728, now seen corresponding path program 1 times [2021-10-29 04:42:00,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:00,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386518658] [2021-10-29 04:42:00,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:00,371 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:00,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:00,372 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:00,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:42:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:00,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-29 04:42:00,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:00,648 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 04:42:00,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 37 [2021-10-29 04:42:00,955 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-29 04:42:00,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 14 [2021-10-29 04:42:01,088 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 04:42:01,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 15 [2021-10-29 04:42:01,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-29 04:42:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:01,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:01,263 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-29 04:42:01,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 25 [2021-10-29 04:42:01,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:01,295 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-10-29 04:42:03,340 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~0.base) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_3) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) is different from false [2021-10-29 04:42:11,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:11,589 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:42:11,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386518658] [2021-10-29 04:42:11,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386518658] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:42:11,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:42:11,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-10-29 04:42:11,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46760447] [2021-10-29 04:42:11,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:42:11,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:42:11,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:42:11,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=53, Unknown=3, NotChecked=14, Total=90 [2021-10-29 04:42:11,592 INFO L87 Difference]: Start difference. First operand 154 states and 160 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:19,509 INFO L93 Difference]: Finished difference Result 188 states and 194 transitions. [2021-10-29 04:42:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 04:42:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 04:42:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:19,511 INFO L225 Difference]: With dead ends: 188 [2021-10-29 04:42:19,511 INFO L226 Difference]: Without dead ends: 188 [2021-10-29 04:42:19,512 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=4, NotChecked=26, Total=240 [2021-10-29 04:42:19,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-29 04:42:19,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 161. [2021-10-29 04:42:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 94 states have (on average 1.7872340425531914) internal successors, (168), 160 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2021-10-29 04:42:19,518 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 9 [2021-10-29 04:42:19,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:19,519 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2021-10-29 04:42:19,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:19,519 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2021-10-29 04:42:19,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:42:19,520 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:19,520 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:19,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:19,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:19,735 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:19,735 INFO L85 PathProgramCache]: Analyzing trace with hash 351614729, now seen corresponding path program 1 times [2021-10-29 04:42:19,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:19,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206180934] [2021-10-29 04:42:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:19,737 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:19,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:19,739 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:19,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 04:42:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:19,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-29 04:42:19,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:20,111 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-29 04:42:20,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 49 [2021-10-29 04:42:20,201 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-29 04:42:20,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 63 [2021-10-29 04:42:20,651 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-29 04:42:20,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 55 [2021-10-29 04:42:20,715 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-29 04:42:20,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 68 [2021-10-29 04:42:21,813 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 04:42:21,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 71 [2021-10-29 04:42:21,904 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 04:42:21,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 23 [2021-10-29 04:42:22,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-10-29 04:42:22,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-10-29 04:42:22,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:22,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:22,663 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:22,665 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-10-29 04:42:22,673 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:22,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-10-29 04:42:25,214 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32))) (.cse2 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~0.base) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~0.base) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~0.base) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_11) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3))))) is different from false [2021-10-29 04:42:27,489 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_14))) (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32))) (.cse2 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_ULTIMATE.start_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_11) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse3 (_ bv4 32)) (bvadd .cse3 (_ bv8 32)))))))) is different from false [2021-10-29 04:42:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:27,699 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:42:27,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206180934] [2021-10-29 04:42:27,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206180934] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:42:27,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:42:27,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-29 04:42:27,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181808890] [2021-10-29 04:42:27,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-29 04:42:27,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:42:27,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-29 04:42:27,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=106, Unknown=2, NotChecked=42, Total=182 [2021-10-29 04:42:27,702 INFO L87 Difference]: Start difference. First operand 161 states and 168 transitions. Second operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:29,761 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_14))) (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32))) (.cse2 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_ULTIMATE.start_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_11) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse3 (_ bv4 32)) (bvadd .cse3 (_ bv8 32)))))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (exists ((ULTIMATE.start_gl_insert_~node~0.base (_ BitVec 32))) (= (select |c_#length| ULTIMATE.start_gl_insert_~node~0.base) (_ bv12 32))) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|)))) (let ((.cse4 (select |c_#length| (_ bv0 32)))) (or (= (_ bv12 32) .cse4) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse4) (= (_ bv0 1) (select |c_#valid| (_ bv0 32)))))) is different from false [2021-10-29 04:42:31,833 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_~#gl_list~0.base| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_14))) (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32))) (.cse2 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) .cse0 v_DerPreprocessor_10) .cse1 v_DerPreprocessor_11) .cse2 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) (_ bv8 32)) (select (store |c_#length| v_ULTIMATE.start_gl_insert_~node~0.base_14 (_ bv12 32)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_5) .cse0 v_DerPreprocessor_6) .cse1 v_DerPreprocessor_7) .cse2 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14 (store (store (store (store (select |c_#memory_$Pointer$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_11) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse3 (_ bv4 32)) (bvadd .cse3 (_ bv8 32)))))))) (= (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|) |c_~#gl_list~0.offset|) (= |c_~#gl_list~0.offset| (_ bv0 32)) (= (_ bv8 32) (select |c_#length| |c_~#gl_list~0.base|)) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (select |c_#valid| |c_~#gl_list~0.base|)))) (let ((.cse4 (select |c_#length| (_ bv0 32)))) (or (= (_ bv12 32) .cse4) (= |c_~#gl_list~0.base| (_ bv0 32)) (= (_ bv2 32) .cse4) (= (_ bv0 1) (select |c_#valid| (_ bv0 32)))))) is different from false [2021-10-29 04:42:36,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:36,434 INFO L93 Difference]: Finished difference Result 261 states and 273 transitions. [2021-10-29 04:42:36,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 04:42:36,436 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 04:42:36,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:36,438 INFO L225 Difference]: With dead ends: 261 [2021-10-29 04:42:36,438 INFO L226 Difference]: Without dead ends: 261 [2021-10-29 04:42:36,439 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=83, Invalid=201, Unknown=4, NotChecked=132, Total=420 [2021-10-29 04:42:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-10-29 04:42:36,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 161. [2021-10-29 04:42:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 94 states have (on average 1.7765957446808511) internal successors, (167), 160 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:36,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 167 transitions. [2021-10-29 04:42:36,447 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 167 transitions. Word has length 9 [2021-10-29 04:42:36,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:36,447 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 167 transitions. [2021-10-29 04:42:36,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:36,448 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 167 transitions. [2021-10-29 04:42:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:42:36,448 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:36,449 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:36,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:36,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:36,662 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:36,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1984845326, now seen corresponding path program 1 times [2021-10-29 04:42:36,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:36,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334669951] [2021-10-29 04:42:36,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:36,663 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:36,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:36,664 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:36,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 04:42:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:36,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:42:36,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:36,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 04:42:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:36,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:36,935 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:42:36,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334669951] [2021-10-29 04:42:36,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334669951] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:42:36,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:42:36,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 04:42:36,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89240079] [2021-10-29 04:42:36,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:42:36,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:42:36,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:42:36,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:42:36,938 INFO L87 Difference]: Start difference. First operand 161 states and 167 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:37,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:37,734 INFO L93 Difference]: Finished difference Result 220 states and 230 transitions. [2021-10-29 04:42:37,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:42:37,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 04:42:37,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:37,737 INFO L225 Difference]: With dead ends: 220 [2021-10-29 04:42:37,737 INFO L226 Difference]: Without dead ends: 220 [2021-10-29 04:42:37,738 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:42:37,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-29 04:42:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 157. [2021-10-29 04:42:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 94 states have (on average 1.7340425531914894) internal successors, (163), 156 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2021-10-29 04:42:37,744 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 10 [2021-10-29 04:42:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:37,744 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2021-10-29 04:42:37,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:37,761 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2021-10-29 04:42:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:42:37,762 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:37,762 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:37,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:37,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:37,963 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:37,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1984845325, now seen corresponding path program 1 times [2021-10-29 04:42:37,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:37,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767192740] [2021-10-29 04:42:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:37,964 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:37,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:37,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:37,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 04:42:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:38,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:42:38,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:38,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 04:42:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:38,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:38,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:38,610 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:42:38,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767192740] [2021-10-29 04:42:38,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767192740] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:42:38,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:42:38,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 04:42:38,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217418628] [2021-10-29 04:42:38,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:42:38,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:42:38,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:42:38,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:42:38,613 INFO L87 Difference]: Start difference. First operand 157 states and 163 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:41,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:41,213 INFO L93 Difference]: Finished difference Result 220 states and 230 transitions. [2021-10-29 04:42:41,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:42:41,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 04:42:41,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:41,217 INFO L225 Difference]: With dead ends: 220 [2021-10-29 04:42:41,217 INFO L226 Difference]: Without dead ends: 220 [2021-10-29 04:42:41,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:42:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-29 04:42:41,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 155. [2021-10-29 04:42:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 94 states have (on average 1.7127659574468086) internal successors, (161), 154 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 161 transitions. [2021-10-29 04:42:41,224 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 161 transitions. Word has length 10 [2021-10-29 04:42:41,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:41,224 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 161 transitions. [2021-10-29 04:42:41,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:41,225 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 161 transitions. [2021-10-29 04:42:41,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:42:41,225 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:41,226 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:41,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:41,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:41,441 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:41,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:41,442 INFO L85 PathProgramCache]: Analyzing trace with hash -470878954, now seen corresponding path program 1 times [2021-10-29 04:42:41,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:41,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754532969] [2021-10-29 04:42:41,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:41,443 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:41,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:41,444 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:41,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 04:42:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:41,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:42:41,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:41,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:42,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-29 04:42:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:42,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:42:42,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754532969] [2021-10-29 04:42:42,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754532969] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:42:42,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:42:42,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-29 04:42:42,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876935284] [2021-10-29 04:42:42,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:42:42,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:42:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:42:42,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-29 04:42:42,166 INFO L87 Difference]: Start difference. First operand 155 states and 161 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:43,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:43,601 INFO L93 Difference]: Finished difference Result 225 states and 235 transitions. [2021-10-29 04:42:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 04:42:43,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:42:43,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:43,605 INFO L225 Difference]: With dead ends: 225 [2021-10-29 04:42:43,605 INFO L226 Difference]: Without dead ends: 225 [2021-10-29 04:42:43,606 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-10-29 04:42:43,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-29 04:42:43,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 152. [2021-10-29 04:42:43,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 94 states have (on average 1.6808510638297873) internal successors, (158), 151 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:43,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2021-10-29 04:42:43,612 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 12 [2021-10-29 04:42:43,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:43,613 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2021-10-29 04:42:43,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2021-10-29 04:42:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:42:43,614 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:43,614 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:43,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:43,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:43,826 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:43,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash -470878955, now seen corresponding path program 1 times [2021-10-29 04:42:43,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:43,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292037795] [2021-10-29 04:42:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:43,827 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:43,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:43,828 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:43,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 04:42:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:44,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:42:44,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:44,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:44,193 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:42:44,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292037795] [2021-10-29 04:42:44,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292037795] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:42:44,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:42:44,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:42:44,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351199025] [2021-10-29 04:42:44,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:42:44,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:42:44,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:42:44,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:42:44,196 INFO L87 Difference]: Start difference. First operand 152 states and 158 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:44,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:44,639 INFO L93 Difference]: Finished difference Result 165 states and 171 transitions. [2021-10-29 04:42:44,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:42:44,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 04:42:44,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:44,641 INFO L225 Difference]: With dead ends: 165 [2021-10-29 04:42:44,641 INFO L226 Difference]: Without dead ends: 165 [2021-10-29 04:42:44,641 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:42:44,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-10-29 04:42:44,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 149. [2021-10-29 04:42:44,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 94 states have (on average 1.648936170212766) internal successors, (155), 148 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:44,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 155 transitions. [2021-10-29 04:42:44,647 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 155 transitions. Word has length 12 [2021-10-29 04:42:44,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:44,648 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 155 transitions. [2021-10-29 04:42:44,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 155 transitions. [2021-10-29 04:42:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:42:44,649 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:44,649 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:44,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:44,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:44,865 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:44,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:44,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1741445100, now seen corresponding path program 1 times [2021-10-29 04:42:44,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:44,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187556524] [2021-10-29 04:42:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:44,866 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:44,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:44,867 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:44,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-29 04:42:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:45,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:42:45,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:45,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:45,262 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-29 04:42:45,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 17 [2021-10-29 04:42:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:45,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:42:45,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187556524] [2021-10-29 04:42:45,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187556524] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:42:45,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:42:45,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 04:42:45,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954264463] [2021-10-29 04:42:45,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:42:45,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:42:45,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:42:45,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:42:45,282 INFO L87 Difference]: Start difference. First operand 149 states and 155 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:45,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:45,967 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2021-10-29 04:42:45,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:42:45,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-29 04:42:45,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:45,969 INFO L225 Difference]: With dead ends: 227 [2021-10-29 04:42:45,969 INFO L226 Difference]: Without dead ends: 227 [2021-10-29 04:42:45,969 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:42:45,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-29 04:42:45,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 147. [2021-10-29 04:42:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 94 states have (on average 1.627659574468085) internal successors, (153), 146 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:45,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 153 transitions. [2021-10-29 04:42:45,975 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 153 transitions. Word has length 17 [2021-10-29 04:42:45,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:45,976 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 153 transitions. [2021-10-29 04:42:45,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:45,976 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 153 transitions. [2021-10-29 04:42:45,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:42:45,977 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:45,977 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:45,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-10-29 04:42:46,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:46,178 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:46,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:46,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1741445099, now seen corresponding path program 1 times [2021-10-29 04:42:46,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:46,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212189911] [2021-10-29 04:42:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:46,179 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:46,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:46,180 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:46,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-29 04:42:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:46,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:42:46,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:46,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:46,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:46,966 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:46,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 26 [2021-10-29 04:42:47,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:47,205 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:42:47,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212189911] [2021-10-29 04:42:47,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212189911] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:42:47,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:42:47,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-29 04:42:47,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858564416] [2021-10-29 04:42:47,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:42:47,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:42:47,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:42:47,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-29 04:42:47,207 INFO L87 Difference]: Start difference. First operand 147 states and 153 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:48,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:42:48,284 INFO L93 Difference]: Finished difference Result 208 states and 218 transitions. [2021-10-29 04:42:48,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:42:48,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-29 04:42:48,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:42:48,287 INFO L225 Difference]: With dead ends: 208 [2021-10-29 04:42:48,287 INFO L226 Difference]: Without dead ends: 208 [2021-10-29 04:42:48,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-10-29 04:42:48,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-29 04:42:48,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 145. [2021-10-29 04:42:48,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 94 states have (on average 1.6063829787234043) internal successors, (151), 144 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:48,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2021-10-29 04:42:48,293 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 17 [2021-10-29 04:42:48,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:42:48,294 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2021-10-29 04:42:48,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:42:48,294 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2021-10-29 04:42:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 04:42:48,295 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:42:48,295 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:42:48,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-29 04:42:48,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:42:48,505 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-29 04:42:48,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:42:48,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1992274679, now seen corresponding path program 1 times [2021-10-29 04:42:48,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:42:48,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562374408] [2021-10-29 04:42:48,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:42:48,507 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:42:48,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:42:48,530 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:42:48,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 04:42:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:42:48,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-29 04:42:48,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:42:48,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 04:42:49,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-29 04:42:49,407 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-29 04:42:49,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 57 [2021-10-29 04:42:49,662 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 04:42:49,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 84 treesize of output 35 [2021-10-29 04:42:49,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-10-29 04:42:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:50,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:50,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:42:50,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-10-29 04:42:59,569 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_19 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_19)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_19 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_19 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_19) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_15) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))) (_ bv1 1))))) is different from false [2021-10-29 04:42:59,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 318385 treesize of output 317361 [2021-10-29 04:43:01,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:43:01,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562374408] [2021-10-29 04:43:01,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 04:43:01,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1605581742] [2021-10-29 04:43:01,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:43:01,129 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:43:01,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:43:01,141 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:43:01,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-29 04:43:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:43:01,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-29 04:43:01,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:43:01,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-10-29 04:43:01,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-29 04:43:02,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-29 04:43:02,476 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-29 04:43:02,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 37 [2021-10-29 04:43:02,922 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 04:43:02,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 87 treesize of output 38 [2021-10-29 04:43:03,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 34 [2021-10-29 04:43:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:43:04,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:43:04,303 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:43:04,305 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-10-29 04:43:11,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 624368 treesize of output 622320 [2021-10-29 04:43:13,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 04:43:13,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671524518] [2021-10-29 04:43:13,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:43:13,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:43:13,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:43:13,846 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:43:13,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-29 04:43:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:43:14,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-29 04:43:14,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:43:14,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-29 04:43:14,737 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-29 04:43:14,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 38 treesize of output 59 [2021-10-29 04:43:14,942 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-29 04:43:14,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 84 treesize of output 35 [2021-10-29 04:43:15,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 48 [2021-10-29 04:43:15,273 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:43:15,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:43:15,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:43:15,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-10-29 04:43:23,463 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_21 (_ BitVec 32)) (v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (or (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_21))))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_21 (_ bv1 1)) (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_21 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_21) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_13) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_14) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_15) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_16)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))))))))) (_ bv1 1))))) is different from false [2021-10-29 04:43:23,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2612724 treesize of output 2604532 [2021-10-29 04:43:32,136 WARN L207 SmtUtils]: Spent 8.43 s on a formula simplification that was a NOOP. DAG size: 2340 [2021-10-29 04:43:32,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-29 04:43:32,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:43:32,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 04:43:32,162 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-29 04:43:32,162 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 04:43:32,170 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-29 04:43:32,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-29 04:43:32,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-29 04:43:32,173 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-29 04:43:32,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-29 04:43:32,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-29 04:43:32,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-29 04:43:32,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-29 04:43:32,174 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-29 04:43:32,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-29 04:43:32,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-29 04:43:32,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-29 04:43:32,175 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-29 04:43:32,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-29 04:43:32,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-29 04:43:32,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-29 04:43:32,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-29 04:43:32,176 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-29 04:43:32,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-29 04:43:32,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-29 04:43:32,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-29 04:43:32,177 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-29 04:43:32,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-29 04:43:32,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-29 04:43:32,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-29 04:43:32,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-29 04:43:32,178 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-29 04:43:32,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-29 04:43:32,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-29 04:43:32,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-29 04:43:32,179 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-29 04:43:32,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-29 04:43:32,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-10-29 04:43:32,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-29 04:43:32,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-10-29 04:43:32,180 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-10-29 04:43:32,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-10-29 04:43:32,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-10-29 04:43:32,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-29 04:43:32,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-29 04:43:32,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-10-29 04:43:32,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-10-29 04:43:32,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-10-29 04:43:32,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-10-29 04:43:32,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-10-29 04:43:32,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-10-29 04:43:32,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-10-29 04:43:32,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-10-29 04:43:32,183 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-10-29 04:43:32,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-10-29 04:43:32,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATION [2021-10-29 04:43:32,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATION [2021-10-29 04:43:32,184 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATION [2021-10-29 04:43:32,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-10-29 04:43:32,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATION [2021-10-29 04:43:32,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-10-29 04:43:32,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-10-29 04:43:32,185 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57REQUIRES_VIOLATION [2021-10-29 04:43:32,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATION [2021-10-29 04:43:32,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATION [2021-10-29 04:43:32,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATION [2021-10-29 04:43:32,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61REQUIRES_VIOLATION [2021-10-29 04:43:32,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62REQUIRES_VIOLATION [2021-10-29 04:43:32,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATION [2021-10-29 04:43:32,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATION [2021-10-29 04:43:32,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65REQUIRES_VIOLATION [2021-10-29 04:43:32,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66REQUIRES_VIOLATION [2021-10-29 04:43:32,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67REQUIRES_VIOLATION [2021-10-29 04:43:32,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68REQUIRES_VIOLATION [2021-10-29 04:43:32,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69REQUIRES_VIOLATION [2021-10-29 04:43:32,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70REQUIRES_VIOLATION [2021-10-29 04:43:32,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATION [2021-10-29 04:43:32,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 04:43:32,189 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 04:43:32,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 04:43:32,190 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:43:32,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-29 04:43:32,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-29 04:43:32,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-29 04:43:32,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:43:32,797 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:43:32,800 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:43:32,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:43:32 BoogieIcfgContainer [2021-10-29 04:43:32,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:43:32,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:43:32,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:43:32,816 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:43:32,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:41:42" (3/4) ... [2021-10-29 04:43:32,830 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:43:32,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:43:32,840 INFO L168 Benchmark]: Toolchain (without parser) took 112559.81 ms. Allocated memory was 83.9 MB in the beginning and 341.8 MB in the end (delta: 257.9 MB). Free memory was 47.3 MB in the beginning and 201.6 MB in the end (delta: -154.3 MB). Peak memory consumption was 104.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:43:32,840 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory was 65.6 MB in the beginning and 65.5 MB in the end (delta: 75.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:43:32,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.14 ms. Allocated memory is still 83.9 MB. Free memory was 47.1 MB in the beginning and 54.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:43:32,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.18 ms. Allocated memory is still 83.9 MB. Free memory was 54.5 MB in the beginning and 51.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:43:32,842 INFO L168 Benchmark]: Boogie Preprocessor took 89.16 ms. Allocated memory is still 83.9 MB. Free memory was 51.7 MB in the beginning and 49.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:43:32,842 INFO L168 Benchmark]: RCFGBuilder took 1396.35 ms. Allocated memory is still 83.9 MB. Free memory was 49.2 MB in the beginning and 48.8 MB in the end (delta: 388.1 kB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:43:32,843 INFO L168 Benchmark]: TraceAbstraction took 110229.31 ms. Allocated memory was 83.9 MB in the beginning and 341.8 MB in the end (delta: 257.9 MB). Free memory was 48.1 MB in the beginning and 201.6 MB in the end (delta: -153.6 MB). Peak memory consumption was 195.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:43:32,843 INFO L168 Benchmark]: Witness Printer took 23.57 ms. Allocated memory is still 341.8 MB. Free memory is still 201.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:43:32,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory was 65.6 MB in the beginning and 65.5 MB in the end (delta: 75.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 690.14 ms. Allocated memory is still 83.9 MB. Free memory was 47.1 MB in the beginning and 54.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 123.18 ms. Allocated memory is still 83.9 MB. Free memory was 54.5 MB in the beginning and 51.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.16 ms. Allocated memory is still 83.9 MB. Free memory was 51.7 MB in the beginning and 49.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1396.35 ms. Allocated memory is still 83.9 MB. Free memory was 49.2 MB in the beginning and 48.8 MB in the end (delta: 388.1 kB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 110229.31 ms. Allocated memory was 83.9 MB in the beginning and 341.8 MB in the end (delta: 257.9 MB). Free memory was 48.1 MB in the beginning and 201.6 MB in the end (delta: -153.6 MB). Peak memory consumption was 195.5 MB. Max. memory is 16.1 GB. * Witness Printer took 23.57 ms. Allocated memory is still 341.8 MB. Free memory is still 201.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L564] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) [L570] node->value = value [L547] head->next [L535] next->prev = new [L536] new->next = next [L537] new->prev = prev [L538] prev->next = new [L578] COND TRUE __VERIFIER_nondet_int() [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) [L570] node->value = value [L547] head->next [L535] next->prev = new - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 596]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 596]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 618]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 163 locations, 76 error locations. Started 1 CEGAR loops. OverallTime: 110.1s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 32.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1097 SDtfs, 6035 SDslu, 1736 SDs, 0 SdLazy, 2937 SolverSat, 215 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 158 SyntacticMatches, 6 SemanticMatches, 107 ConstructedPredicates, 5 IntricatePredicates, 1 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 37.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=0, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 595 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 40.5s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 245 ConstructedInterpolants, 30 QuantifiedInterpolants, 3252 SizeOfPredicates, 104 NumberOfNonLiveVariables, 1044 ConjunctsInSsa, 128 ConjunctsInUnsatCore, 27 InterpolantComputations, 26 PerfectInterpolantSequences, 3/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 04:43:32,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39065fda-9ae8-488c-90d3-06b3f98d9d3f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...