./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0134.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8 --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 db17cb012c873ce1993df4f7abddbb0b29340507 ............................................................................................................................................. 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_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0134.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8 --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 db17cb012c873ce1993df4f7abddbb0b29340507 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:02:51,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:02:51,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:02:51,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:02:51,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:02:51,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:02:51,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:02:51,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:02:51,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:02:52,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:02:52,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:02:52,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:02:52,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:02:52,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:02:52,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:02:52,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:02:52,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:02:52,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:02:52,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:02:52,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:02:52,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:02:52,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:02:52,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:02:52,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:02:52,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:02:52,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:02:52,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:02:52,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:02:52,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:02:52,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:02:52,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:02:52,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:02:52,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:02:52,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:02:52,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:02:52,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:02:52,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:02:52,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:02:52,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:02:52,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:02:52,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:02:52,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-13 08:02:52,094 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:02:52,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:02:52,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:02:52,096 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:02:52,096 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:02:52,096 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:02:52,097 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:02:52,097 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:02:52,097 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:02:52,098 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:02:52,098 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:02:52,098 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:02:52,099 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:02:52,099 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:02:52,099 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:02:52,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 08:02:52,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 08:02:52,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:02:52,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:02:52,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 08:02:52,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:02:52,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:02:52,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:02:52,103 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 08:02:52,103 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 08:02:52,103 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 08:02:52,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:02:52,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:02:52,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:02:52,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:02:52,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:02:52,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:02:52,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:02:52,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:02:52,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:02:52,106 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:02:52,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:02:52,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:02:52,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:02:52,107 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_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db17cb012c873ce1993df4f7abddbb0b29340507 [2021-10-13 08:02:52,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:02:52,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:02:52,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:02:52,441 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:02:52,442 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:02:52,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/memsafety/test-0134.i [2021-10-13 08:02:52,532 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data/7b9a6c874/4e22d01bad354db299a18503acc0f4ef/FLAGfcea52b20 [2021-10-13 08:02:53,145 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:02:53,146 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/sv-benchmarks/c/memsafety/test-0134.i [2021-10-13 08:02:53,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data/7b9a6c874/4e22d01bad354db299a18503acc0f4ef/FLAGfcea52b20 [2021-10-13 08:02:53,397 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data/7b9a6c874/4e22d01bad354db299a18503acc0f4ef [2021-10-13 08:02:53,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:02:53,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:02:53,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:02:53,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:02:53,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:02:53,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:02:53" (1/1) ... [2021-10-13 08:02:53,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2116c270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:53, skipping insertion in model container [2021-10-13 08:02:53,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:02:53" (1/1) ... [2021-10-13 08:02:53,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:02:53,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:02:53,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:02:53,939 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) [2021-10-13 08:02:53,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@cb7a915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:53, skipping insertion in model container [2021-10-13 08:02:53,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:02:53,940 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 08:02:53,942 INFO L168 Benchmark]: Toolchain (without parser) took 540.08 ms. Allocated memory is still 132.1 MB. Free memory was 93.2 MB in the beginning and 104.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:02:53,944 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 132.1 MB. Free memory was 111.6 MB in the beginning and 111.5 MB in the end (delta: 71.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:02:53,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.76 ms. Allocated memory is still 132.1 MB. Free memory was 93.0 MB in the beginning and 104.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:02:53,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 132.1 MB. Free memory was 111.6 MB in the beginning and 111.5 MB in the end (delta: 71.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 536.76 ms. Allocated memory is still 132.1 MB. Free memory was 93.0 MB in the beginning and 104.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 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-4e77c04 [2021-10-13 08:02:56,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:02:56,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:02:56,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:02:56,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:02:56,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:02:56,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:02:56,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:02:56,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:02:56,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:02:56,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:02:56,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:02:56,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:02:56,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:02:56,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:02:56,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:02:56,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:02:56,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:02:56,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:02:56,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:02:56,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:02:56,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:02:56,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:02:56,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:02:56,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:02:56,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:02:56,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:02:56,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:02:56,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:02:56,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:02:56,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:02:56,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:02:56,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:02:56,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:02:56,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:02:56,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:02:56,721 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:02:56,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:02:56,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:02:56,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:02:56,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:02:56,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-13 08:02:56,776 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:02:56,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:02:56,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:02:56,779 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:02:56,779 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:02:56,780 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:02:56,780 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:02:56,780 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:02:56,781 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:02:56,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 08:02:56,784 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 08:02:56,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:02:56,785 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:02:56,786 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 08:02:56,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:02:56,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:02:56,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:02:56,787 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 08:02:56,787 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 08:02:56,787 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 08:02:56,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:02:56,788 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:02:56,788 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:02:56,788 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:02:56,789 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:02:56,789 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:02:56,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:02:56,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:02:56,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:02:56,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:02:56,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:02:56,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:02:56,791 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:02:56,791 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:02:56,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:02:56,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:02:56,792 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_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db17cb012c873ce1993df4f7abddbb0b29340507 [2021-10-13 08:02:57,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:02:57,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:02:57,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:02:57,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:02:57,280 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:02:57,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/memsafety/test-0134.i [2021-10-13 08:02:57,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data/70d3e412a/dfedefc33ef840da8c9d3ce956a9c11d/FLAGc037d75c2 [2021-10-13 08:02:58,051 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:02:58,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/sv-benchmarks/c/memsafety/test-0134.i [2021-10-13 08:02:58,064 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data/70d3e412a/dfedefc33ef840da8c9d3ce956a9c11d/FLAGc037d75c2 [2021-10-13 08:02:58,305 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/data/70d3e412a/dfedefc33ef840da8c9d3ce956a9c11d [2021-10-13 08:02:58,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:02:58,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:02:58,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:02:58,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:02:58,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:02:58,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:58,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720dd08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58, skipping insertion in model container [2021-10-13 08:02:58,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:58,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:02:58,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:02:58,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:02:58,814 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 08:02:58,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:02:58,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:02:58,880 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:02:58,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:02:58,971 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:02:58,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58 WrapperNode [2021-10-13 08:02:58,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:02:58,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:02:58,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:02:58,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:02:58,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:02:59,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:02:59,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:02:59,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:02:59,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:02:59,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:02:59,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:02:59,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:02:59,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (1/1) ... [2021-10-13 08:02:59,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:02:59,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:02:59,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:02:59,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:02:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 08:02:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 08:02:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 08:02:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:02:59,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 08:02:59,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 08:02:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 08:02:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-13 08:02:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 08:02:59,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:02:59,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:03:00,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:03:00,470 INFO L299 CfgBuilder]: Removed 46 assume(true) statements. [2021-10-13 08:03:00,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:03:00 BoogieIcfgContainer [2021-10-13 08:03:00,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:03:00,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:03:00,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:03:00,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:03:00,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:02:58" (1/3) ... [2021-10-13 08:03:00,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173dd52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:03:00, skipping insertion in model container [2021-10-13 08:03:00,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:02:58" (2/3) ... [2021-10-13 08:03:00,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173dd52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:03:00, skipping insertion in model container [2021-10-13 08:03:00,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:03:00" (3/3) ... [2021-10-13 08:03:00,483 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0134.i [2021-10-13 08:03:00,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:03:00,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2021-10-13 08:03:00,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:03:00,563 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, mConcurrency=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 [2021-10-13 08:03:00,564 INFO L340 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2021-10-13 08:03:00,593 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) [2021-10-13 08:03:00,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 08:03:00,611 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:00,611 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 08:03:00,612 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:03:00,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:00,622 INFO L82 PathProgramCache]: Analyzing trace with hash 28694792, now seen corresponding path program 1 times [2021-10-13 08:03:00,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:00,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847728015] [2021-10-13 08:03:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:00,637 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:00,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:00,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:00,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:03:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:00,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 08:03:00,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:00,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:00,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:00,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847728015] [2021-10-13 08:03:00,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847728015] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:00,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:00,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 08:03:00,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838302790] [2021-10-13 08:03:00,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 08:03:00,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:00,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 08:03:00,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:03:00,851 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) [2021-10-13 08:03:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:00,874 INFO L93 Difference]: Finished difference Result 163 states and 169 transitions. [2021-10-13 08:03:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 08:03:00,875 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 [2021-10-13 08:03:00,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:00,886 INFO L225 Difference]: With dead ends: 163 [2021-10-13 08:03:00,886 INFO L226 Difference]: Without dead ends: 161 [2021-10-13 08:03:00,887 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:03:00,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-10-13 08:03:00,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-10-13 08:03:00,929 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) [2021-10-13 08:03:00,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 167 transitions. [2021-10-13 08:03:00,934 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 167 transitions. Word has length 5 [2021-10-13 08:03:00,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:00,934 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 167 transitions. [2021-10-13 08:03:00,935 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) [2021-10-13 08:03:00,935 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 167 transitions. [2021-10-13 08:03:00,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 08:03:00,935 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:00,936 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 08:03:00,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:01,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:01,148 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:03:01,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:01,149 INFO L82 PathProgramCache]: Analyzing trace with hash 28694854, now seen corresponding path program 1 times [2021-10-13 08:03:01,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:01,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998919398] [2021-10-13 08:03:01,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:01,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:01,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:01,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:01,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 08:03:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:01,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:03:01,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:01,323 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 [2021-10-13 08:03:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:01,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:01,365 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:01,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998919398] [2021-10-13 08:03:01,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998919398] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:01,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:01,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 08:03:01,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087690476] [2021-10-13 08:03:01,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:03:01,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:01,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:03:01,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:03:01,370 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) [2021-10-13 08:03:01,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:01,700 INFO L93 Difference]: Finished difference Result 183 states and 189 transitions. [2021-10-13 08:03:01,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:03:01,701 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 [2021-10-13 08:03:01,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:01,703 INFO L225 Difference]: With dead ends: 183 [2021-10-13 08:03:01,703 INFO L226 Difference]: Without dead ends: 183 [2021-10-13 08:03:01,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:03:01,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-13 08:03:01,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 160. [2021-10-13 08:03:01,716 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) [2021-10-13 08:03:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 166 transitions. [2021-10-13 08:03:01,719 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 166 transitions. Word has length 5 [2021-10-13 08:03:01,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:01,720 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 166 transitions. [2021-10-13 08:03:01,720 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) [2021-10-13 08:03:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 166 transitions. [2021-10-13 08:03:01,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 08:03:01,721 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:01,721 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 08:03:01,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:01,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:01,933 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:03:01,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:01,934 INFO L82 PathProgramCache]: Analyzing trace with hash 28694855, now seen corresponding path program 1 times [2021-10-13 08:03:01,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:01,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857928595] [2021-10-13 08:03:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:01,936 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:01,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:01,951 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:01,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 08:03:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:02,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 08:03:02,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:02,067 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 [2021-10-13 08:03:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:02,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:02,207 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:02,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857928595] [2021-10-13 08:03:02,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857928595] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:02,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:02,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 08:03:02,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888305492] [2021-10-13 08:03:02,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:03:02,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:02,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:03:02,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:03:02,211 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) [2021-10-13 08:03:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:02,951 INFO L93 Difference]: Finished difference Result 182 states and 188 transitions. [2021-10-13 08:03:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:03:02,952 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 [2021-10-13 08:03:02,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:02,954 INFO L225 Difference]: With dead ends: 182 [2021-10-13 08:03:02,954 INFO L226 Difference]: Without dead ends: 182 [2021-10-13 08:03:02,955 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:03:02,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-13 08:03:02,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 159. [2021-10-13 08:03:02,965 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) [2021-10-13 08:03:02,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 165 transitions. [2021-10-13 08:03:02,967 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 165 transitions. Word has length 5 [2021-10-13 08:03:02,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:02,967 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 165 transitions. [2021-10-13 08:03:02,967 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) [2021-10-13 08:03:02,968 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 165 transitions. [2021-10-13 08:03:02,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 08:03:02,968 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:02,968 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:02,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:03,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:03,180 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:03:03,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:03,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1805950471, now seen corresponding path program 1 times [2021-10-13 08:03:03,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:03,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687453551] [2021-10-13 08:03:03,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:03,182 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:03,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:03,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:03,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 08:03:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:03,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:03:03,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:03,386 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-13 08:03:03,386 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 [2021-10-13 08:03:03,684 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-10-13 08:03:03,685 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 [2021-10-13 08:03:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:03,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:06,104 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:06,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687453551] [2021-10-13 08:03:06,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687453551] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:06,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:06,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 08:03:06,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585860953] [2021-10-13 08:03:06,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 08:03:06,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:06,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 08:03:06,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2021-10-13 08:03:06,108 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) [2021-10-13 08:03:06,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:06,911 INFO L93 Difference]: Finished difference Result 180 states and 186 transitions. [2021-10-13 08:03:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 08:03:06,912 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 [2021-10-13 08:03:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:06,914 INFO L225 Difference]: With dead ends: 180 [2021-10-13 08:03:06,914 INFO L226 Difference]: Without dead ends: 180 [2021-10-13 08:03:06,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2203.7ms TimeCoverageRelationStatistics Valid=22, Invalid=33, Unknown=1, NotChecked=0, Total=56 [2021-10-13 08:03:06,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-13 08:03:06,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 158. [2021-10-13 08:03:06,924 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) [2021-10-13 08:03:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 165 transitions. [2021-10-13 08:03:06,927 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 165 transitions. Word has length 7 [2021-10-13 08:03:06,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:06,927 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 165 transitions. [2021-10-13 08:03:06,927 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) [2021-10-13 08:03:06,928 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 165 transitions. [2021-10-13 08:03:06,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 08:03:06,928 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:06,928 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:06,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:07,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:07,147 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:03:07,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:07,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1805950472, now seen corresponding path program 1 times [2021-10-13 08:03:07,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:07,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928359895] [2021-10-13 08:03:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:07,149 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:07,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:07,151 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:07,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 08:03:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:07,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 08:03:07,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:07,392 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-13 08:03:07,392 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 [2021-10-13 08:03:07,480 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-13 08:03:07,481 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 [2021-10-13 08:03:07,858 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-13 08:03:07,858 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 [2021-10-13 08:03:07,904 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-13 08:03:07,905 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 [2021-10-13 08:03:08,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:08,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:13,122 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:13,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928359895] [2021-10-13 08:03:13,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928359895] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:13,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:13,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-13 08:03:13,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874728849] [2021-10-13 08:03:13,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 08:03:13,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:13,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 08:03:13,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2021-10-13 08:03:13,124 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) [2021-10-13 08:03:19,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:19,552 INFO L93 Difference]: Finished difference Result 194 states and 200 transitions. [2021-10-13 08:03:19,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 08:03:19,553 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 [2021-10-13 08:03:19,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:19,554 INFO L225 Difference]: With dead ends: 194 [2021-10-13 08:03:19,554 INFO L226 Difference]: Without dead ends: 194 [2021-10-13 08:03:19,555 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 8890.0ms TimeCoverageRelationStatistics Valid=76, Invalid=133, Unknown=1, NotChecked=0, Total=210 [2021-10-13 08:03:19,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-13 08:03:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 154. [2021-10-13 08:03:19,561 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) [2021-10-13 08:03:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 160 transitions. [2021-10-13 08:03:19,562 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 160 transitions. Word has length 7 [2021-10-13 08:03:19,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:19,563 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 160 transitions. [2021-10-13 08:03:19,563 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) [2021-10-13 08:03:19,563 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 160 transitions. [2021-10-13 08:03:19,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 08:03:19,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:19,564 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:19,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 08:03:19,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:19,782 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:03:19,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:19,783 INFO L82 PathProgramCache]: Analyzing trace with hash 351614728, now seen corresponding path program 1 times [2021-10-13 08:03:19,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:19,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636373244] [2021-10-13 08:03:19,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:19,783 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:19,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:19,784 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:19,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 08:03:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:19,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 08:03:19,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:20,030 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-13 08:03:20,030 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 [2021-10-13 08:03:20,327 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-13 08:03:20,327 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 [2021-10-13 08:03:20,435 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-13 08:03:20,436 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 [2021-10-13 08:03:20,491 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 [2021-10-13 08:03:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:20,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:20,603 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-13 08:03:20,604 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 [2021-10-13 08:03:20,630 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:03:20,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-10-13 08:03:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:29,088 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:29,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636373244] [2021-10-13 08:03:29,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636373244] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:29,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:29,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-10-13 08:03:29,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037552327] [2021-10-13 08:03:29,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 08:03:29,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 08:03:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=64, Unknown=4, NotChecked=0, Total=90 [2021-10-13 08:03:29,091 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) [2021-10-13 08:03:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:03:32,809 INFO L93 Difference]: Finished difference Result 188 states and 194 transitions. [2021-10-13 08:03:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 08:03:32,810 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 [2021-10-13 08:03:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:03:32,812 INFO L225 Difference]: With dead ends: 188 [2021-10-13 08:03:32,812 INFO L226 Difference]: Without dead ends: 188 [2021-10-13 08:03:32,813 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 10640.5ms TimeCoverageRelationStatistics Valid=67, Invalid=138, Unknown=5, NotChecked=0, Total=210 [2021-10-13 08:03:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-13 08:03:32,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 161. [2021-10-13 08:03:32,819 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) [2021-10-13 08:03:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2021-10-13 08:03:32,821 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 9 [2021-10-13 08:03:32,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:03:32,821 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2021-10-13 08:03:32,821 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) [2021-10-13 08:03:32,822 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2021-10-13 08:03:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 08:03:32,822 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:03:32,823 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:03:32,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-13 08:03:33,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:03:33,036 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:03:33,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:03:33,037 INFO L82 PathProgramCache]: Analyzing trace with hash 351614729, now seen corresponding path program 1 times [2021-10-13 08:03:33,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:03:33,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18911518] [2021-10-13 08:03:33,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:03:33,037 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:03:33,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:03:33,039 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:03:33,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 08:03:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:03:33,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-13 08:03:33,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:03:33,356 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-10-13 08:03:33,356 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 [2021-10-13 08:03:33,441 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-10-13 08:03:33,442 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 [2021-10-13 08:03:33,874 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-10-13 08:03:33,874 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 [2021-10-13 08:03:33,948 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-10-13 08:03:33,949 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 [2021-10-13 08:03:35,064 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-13 08:03:35,064 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 [2021-10-13 08:03:35,137 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-13 08:03:35,137 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 [2021-10-13 08:03:35,337 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 [2021-10-13 08:03:35,342 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 [2021-10-13 08:03:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:35,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:35,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:03:35,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-10-13 08:03:35,911 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:03:35,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-10-13 08:03:38,394 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 [2021-10-13 08:03:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:03:49,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:03:49,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18911518] [2021-10-13 08:03:49,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18911518] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:03:49,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:03:49,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-13 08:03:49,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575349181] [2021-10-13 08:03:49,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 08:03:49,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:03:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 08:03:49,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=124, Unknown=3, NotChecked=22, Total=182 [2021-10-13 08:03:49,434 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) [2021-10-13 08:03:53,373 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (select (select |c_#memory_$Pointer$.offset| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (.cse4 (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_list_add_~head.base) c_ULTIMATE.start_list_add_~head.offset))) (let ((.cse5 (bvadd (_ bv8 32) .cse4)) (.cse7 (bvadd .cse6 (_ bv8 32)))) (and (= (select |c_#length| c_ULTIMATE.start___list_add_~next.base) (_ bv8 32)) (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_14))) (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32))) (.cse2 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$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$.offset| v_ULTIMATE.start_gl_insert_~node~0.base_14) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_10) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_11) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))) (bvule (bvadd .cse3 (_ bv4 32)) (bvadd .cse3 (_ bv8 32)))))))) (= (select |c_#length| |c_ULTIMATE.start_list_add_#t~mem6.base|) (_ bv8 32)) (bvule (bvadd (_ bv4 32) .cse4) .cse5) (= |c_ULTIMATE.start_list_add_#t~mem6.offset| (_ bv0 32)) (bvule .cse5 (select |c_#length| (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_list_add_~head.base) c_ULTIMATE.start_list_add_~head.offset))) (exists ((ULTIMATE.start_gl_insert_~node~0.base (_ BitVec 32))) (= (select |c_#length| ULTIMATE.start_gl_insert_~node~0.base) (_ bv12 32))) (bvule (bvadd (_ bv4 32) .cse6) .cse7) (= c_ULTIMATE.start___list_add_~next.offset (_ bv0 32)) (bvule .cse7 (select |c_#length| (select (select |c_#memory_$Pointer$.base| |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))) is different from false [2021-10-13 08:04:10,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:10,246 INFO L93 Difference]: Finished difference Result 256 states and 268 transitions. [2021-10-13 08:04:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 08:04:10,248 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 [2021-10-13 08:04:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:10,250 INFO L225 Difference]: With dead ends: 256 [2021-10-13 08:04:10,250 INFO L226 Difference]: Without dead ends: 256 [2021-10-13 08:04:10,250 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 16970.0ms TimeCoverageRelationStatistics Valid=91, Invalid=219, Unknown=4, NotChecked=66, Total=380 [2021-10-13 08:04:10,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-13 08:04:10,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 161. [2021-10-13 08:04:10,256 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) [2021-10-13 08:04:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 167 transitions. [2021-10-13 08:04:10,257 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 167 transitions. Word has length 9 [2021-10-13 08:04:10,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:10,258 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 167 transitions. [2021-10-13 08:04:10,258 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) [2021-10-13 08:04:10,258 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 167 transitions. [2021-10-13 08:04:10,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 08:04:10,259 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:10,259 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:10,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:10,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:10,478 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:04:10,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:10,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1984845326, now seen corresponding path program 1 times [2021-10-13 08:04:10,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:10,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568508290] [2021-10-13 08:04:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:10,479 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:10,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:10,480 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:10,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 08:04:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:10,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:04:10,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:10,613 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 [2021-10-13 08:04:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:10,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:10,715 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:10,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568508290] [2021-10-13 08:04:10,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568508290] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:04:10,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:04:10,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 08:04:10,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940648956] [2021-10-13 08:04:10,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 08:04:10,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:10,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 08:04:10,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:04:10,718 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) [2021-10-13 08:04:11,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:11,472 INFO L93 Difference]: Finished difference Result 220 states and 230 transitions. [2021-10-13 08:04:11,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 08:04:11,472 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 [2021-10-13 08:04:11,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:11,474 INFO L225 Difference]: With dead ends: 220 [2021-10-13 08:04:11,474 INFO L226 Difference]: Without dead ends: 220 [2021-10-13 08:04:11,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 70.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:04:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-13 08:04:11,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 157. [2021-10-13 08:04:11,480 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) [2021-10-13 08:04:11,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2021-10-13 08:04:11,481 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 10 [2021-10-13 08:04:11,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:11,485 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2021-10-13 08:04:11,486 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) [2021-10-13 08:04:11,486 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2021-10-13 08:04:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 08:04:11,486 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:11,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:11,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:11,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:11,688 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:04:11,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:11,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1984845325, now seen corresponding path program 1 times [2021-10-13 08:04:11,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:11,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79975479] [2021-10-13 08:04:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:11,689 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:11,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:11,690 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:11,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 08:04:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:11,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 08:04:11,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:11,832 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 [2021-10-13 08:04:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:11,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:12,220 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:12,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79975479] [2021-10-13 08:04:12,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79975479] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:04:12,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:04:12,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 08:04:12,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28152136] [2021-10-13 08:04:12,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 08:04:12,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:12,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 08:04:12,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:04:12,223 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) [2021-10-13 08:04:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:14,950 INFO L93 Difference]: Finished difference Result 220 states and 230 transitions. [2021-10-13 08:04:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 08:04:14,952 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 [2021-10-13 08:04:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:14,954 INFO L225 Difference]: With dead ends: 220 [2021-10-13 08:04:14,954 INFO L226 Difference]: Without dead ends: 220 [2021-10-13 08:04:14,954 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 487.7ms TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-13 08:04:14,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-13 08:04:14,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 155. [2021-10-13 08:04:14,960 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) [2021-10-13 08:04:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 161 transitions. [2021-10-13 08:04:14,961 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 161 transitions. Word has length 10 [2021-10-13 08:04:14,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:14,961 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 161 transitions. [2021-10-13 08:04:14,961 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) [2021-10-13 08:04:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 161 transitions. [2021-10-13 08:04:14,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 08:04:14,962 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:14,962 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:14,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:15,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:15,163 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:04:15,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:15,163 INFO L82 PathProgramCache]: Analyzing trace with hash -470878954, now seen corresponding path program 1 times [2021-10-13 08:04:15,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:15,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721642531] [2021-10-13 08:04:15,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:15,164 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:15,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:15,165 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:15,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 08:04:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:15,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 08:04:15,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:15,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:15,712 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 [2021-10-13 08:04:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:15,830 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:15,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721642531] [2021-10-13 08:04:15,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721642531] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:04:15,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:04:15,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-13 08:04:15,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408231308] [2021-10-13 08:04:15,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 08:04:15,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:15,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 08:04:15,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:04:15,832 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) [2021-10-13 08:04:17,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:17,232 INFO L93 Difference]: Finished difference Result 225 states and 235 transitions. [2021-10-13 08:04:17,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 08:04:17,234 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 [2021-10-13 08:04:17,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:17,235 INFO L225 Difference]: With dead ends: 225 [2021-10-13 08:04:17,235 INFO L226 Difference]: Without dead ends: 225 [2021-10-13 08:04:17,235 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 513.4ms TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-10-13 08:04:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-13 08:04:17,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 152. [2021-10-13 08:04:17,239 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) [2021-10-13 08:04:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2021-10-13 08:04:17,240 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 12 [2021-10-13 08:04:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:17,240 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2021-10-13 08:04:17,240 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) [2021-10-13 08:04:17,240 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2021-10-13 08:04:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 08:04:17,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:17,241 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:17,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:17,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:17,446 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:04:17,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:17,446 INFO L82 PathProgramCache]: Analyzing trace with hash -470878955, now seen corresponding path program 1 times [2021-10-13 08:04:17,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:17,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681364839] [2021-10-13 08:04:17,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:17,447 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:17,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:17,448 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:17,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 08:04:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:17,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:04:17,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:17,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:17,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:17,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:17,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681364839] [2021-10-13 08:04:17,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681364839] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:04:17,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:04:17,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:04:17,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596293481] [2021-10-13 08:04:17,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:04:17,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:17,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:04:17,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:04:17,729 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) [2021-10-13 08:04:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:18,102 INFO L93 Difference]: Finished difference Result 165 states and 171 transitions. [2021-10-13 08:04:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 08:04:18,103 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 [2021-10-13 08:04:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:18,104 INFO L225 Difference]: With dead ends: 165 [2021-10-13 08:04:18,104 INFO L226 Difference]: Without dead ends: 165 [2021-10-13 08:04:18,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:04:18,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-10-13 08:04:18,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 149. [2021-10-13 08:04:18,108 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) [2021-10-13 08:04:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 155 transitions. [2021-10-13 08:04:18,110 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 155 transitions. Word has length 12 [2021-10-13 08:04:18,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:18,110 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 155 transitions. [2021-10-13 08:04:18,110 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) [2021-10-13 08:04:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 155 transitions. [2021-10-13 08:04:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 08:04:18,111 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:18,111 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:18,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-13 08:04:18,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:18,324 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:04:18,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:18,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1741445100, now seen corresponding path program 1 times [2021-10-13 08:04:18,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:18,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549000323] [2021-10-13 08:04:18,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:18,326 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:18,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:18,327 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:18,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 08:04:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:18,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:04:18,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:18,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:18,678 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-10-13 08:04:18,678 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 [2021-10-13 08:04:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:18,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:18,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549000323] [2021-10-13 08:04:18,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549000323] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:04:18,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:04:18,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 08:04:18,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684641239] [2021-10-13 08:04:18,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 08:04:18,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 08:04:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:04:18,700 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) [2021-10-13 08:04:19,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:19,358 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2021-10-13 08:04:19,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 08:04:19,359 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 [2021-10-13 08:04:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:19,360 INFO L225 Difference]: With dead ends: 227 [2021-10-13 08:04:19,360 INFO L226 Difference]: Without dead ends: 227 [2021-10-13 08:04:19,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 75.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:04:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-13 08:04:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 147. [2021-10-13 08:04:19,364 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) [2021-10-13 08:04:19,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 153 transitions. [2021-10-13 08:04:19,364 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 153 transitions. Word has length 17 [2021-10-13 08:04:19,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:19,365 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 153 transitions. [2021-10-13 08:04:19,365 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) [2021-10-13 08:04:19,365 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 153 transitions. [2021-10-13 08:04:19,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 08:04:19,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:19,366 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:19,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:19,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:19,578 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:04:19,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:19,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1741445099, now seen corresponding path program 1 times [2021-10-13 08:04:19,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:19,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058189137] [2021-10-13 08:04:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:19,580 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:19,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:19,580 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:19,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 08:04:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:19,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 08:04:19,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:19,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:19,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:20,341 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:04:20,342 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 [2021-10-13 08:04:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:20,586 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:20,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058189137] [2021-10-13 08:04:20,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058189137] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:04:20,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:04:20,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-13 08:04:20,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529804407] [2021-10-13 08:04:20,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 08:04:20,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:04:20,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 08:04:20,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:04:20,589 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) [2021-10-13 08:04:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:21,513 INFO L93 Difference]: Finished difference Result 208 states and 218 transitions. [2021-10-13 08:04:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 08:04:21,514 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 [2021-10-13 08:04:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:21,515 INFO L225 Difference]: With dead ends: 208 [2021-10-13 08:04:21,515 INFO L226 Difference]: Without dead ends: 208 [2021-10-13 08:04:21,516 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 328.7ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-10-13 08:04:21,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-13 08:04:21,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 145. [2021-10-13 08:04:21,520 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) [2021-10-13 08:04:21,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2021-10-13 08:04:21,521 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 17 [2021-10-13 08:04:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:21,522 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2021-10-13 08:04:21,522 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) [2021-10-13 08:04:21,522 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2021-10-13 08:04:21,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 08:04:21,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:04:21,523 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:04:21,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:21,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:21,730 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-10-13 08:04:21,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:04:21,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1992274679, now seen corresponding path program 1 times [2021-10-13 08:04:21,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:04:21,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627570323] [2021-10-13 08:04:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:21,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:04:21,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:04:21,733 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:04:21,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 08:04:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:22,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-13 08:04:22,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:22,093 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 [2021-10-13 08:04:22,341 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 [2021-10-13 08:04:22,514 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-13 08:04:22,514 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 [2021-10-13 08:04:22,743 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-13 08:04:22,744 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 [2021-10-13 08:04:23,003 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 [2021-10-13 08:04:23,363 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:23,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:23,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:04:23,601 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-10-13 08:04:25,650 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_13 (_ BitVec 32)) (v_DerPreprocessor_14 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_15 (_ BitVec 32)) (v_DerPreprocessor_16 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$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_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 [2021-10-13 08:04:27,731 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 [2021-10-13 08:04:27,884 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 [2021-10-13 08:04:29,054 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:04:29,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627570323] [2021-10-13 08:04:29,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 08:04:29,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1683838527] [2021-10-13 08:04:29,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:29,055 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:04:29,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:04:29,065 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:04:29,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-13 08:04:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:29,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-13 08:04:29,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:29,525 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 [2021-10-13 08:04:29,606 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 [2021-10-13 08:04:30,090 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 [2021-10-13 08:04:30,280 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-10-13 08:04:30,280 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 [2021-10-13 08:04:30,670 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-13 08:04:30,671 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 [2021-10-13 08:04:31,120 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 [2021-10-13 08:04:31,739 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:31,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:31,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:04:31,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-10-13 08:04:35,963 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 640496 treesize of output 638448 [2021-10-13 08:04:38,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 08:04:38,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999263667] [2021-10-13 08:04:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:04:38,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:04:38,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:04:38,113 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:04:38,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 08:04:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:04:38,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 08:04:38,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:04:38,771 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 [2021-10-13 08:04:38,918 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-10-13 08:04:38,919 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 [2021-10-13 08:04:39,134 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-10-13 08:04:39,134 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 [2021-10-13 08:04:39,249 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 [2021-10-13 08:04:39,459 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:04:39,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:04:39,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:04:39,557 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-10-13 08:04:41,593 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$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_21) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_23) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_24)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))) (_ bv1 1)))) is different from false [2021-10-13 08:04:43,652 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_21 (_ BitVec 32)) (v_DerPreprocessor_21 (_ BitVec 32)) (v_DerPreprocessor_24 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_22 (_ BitVec 32)) (v_DerPreprocessor_23 (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select (store |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_21 (_ bv1 1)) (select (select (store |c_#memory_$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_21) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_22) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_23) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_24)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)))))))))) (_ bv1 1))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_21))))))))) is different from false [2021-10-13 08:04:43,798 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 336692 treesize of output 335668 [2021-10-13 08:04:44,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 08:04:44,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:04:44,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-13 08:04:44,782 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-13 08:04:44,782 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-13 08:04:44,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-13 08:04:44,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-13 08:04:44,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-13 08:04:44,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-13 08:04:44,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-13 08:04:44,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-13 08:04:44,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-13 08:04:44,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-13 08:04:44,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-13 08:04:44,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-13 08:04:44,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-13 08:04:44,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-13 08:04:44,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-13 08:04:44,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-13 08:04:44,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-13 08:04:44,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-13 08:04:44,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-13 08:04:44,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-13 08:04:44,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-13 08:04:44,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-13 08:04:44,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-13 08:04:44,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-13 08:04:44,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-13 08:04:44,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-13 08:04:44,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-10-13 08:04:44,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-10-13 08:04:44,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-13 08:04:44,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-13 08:04:44,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-13 08:04:44,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-13 08:04:44,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-13 08:04:44,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-13 08:04:44,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-10-13 08:04:44,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-13 08:04:44,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-10-13 08:04:44,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-10-13 08:04:44,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-10-13 08:04:44,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-10-13 08:04:44,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-13 08:04:44,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-13 08:04:44,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-10-13 08:04:44,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-10-13 08:04:44,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-10-13 08:04:44,799 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-10-13 08:04:44,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-10-13 08:04:44,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-10-13 08:04:44,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-10-13 08:04:44,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-10-13 08:04:44,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-10-13 08:04:44,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-10-13 08:04:44,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATION [2021-10-13 08:04:44,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATION [2021-10-13 08:04:44,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATION [2021-10-13 08:04:44,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-10-13 08:04:44,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATION [2021-10-13 08:04:44,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-10-13 08:04:44,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-10-13 08:04:44,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57REQUIRES_VIOLATION [2021-10-13 08:04:44,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATION [2021-10-13 08:04:44,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATION [2021-10-13 08:04:44,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATION [2021-10-13 08:04:44,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61REQUIRES_VIOLATION [2021-10-13 08:04:44,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62REQUIRES_VIOLATION [2021-10-13 08:04:44,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATION [2021-10-13 08:04:44,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATION [2021-10-13 08:04:44,803 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65REQUIRES_VIOLATION [2021-10-13 08:04:44,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66REQUIRES_VIOLATION [2021-10-13 08:04:44,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67REQUIRES_VIOLATION [2021-10-13 08:04:44,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68REQUIRES_VIOLATION [2021-10-13 08:04:44,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69REQUIRES_VIOLATION [2021-10-13 08:04:44,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70REQUIRES_VIOLATION [2021-10-13 08:04:44,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATION [2021-10-13 08:04:44,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 08:04:44,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 08:04:44,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE [2021-10-13 08:04:44,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 08:04:44,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:45,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:45,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:45,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:45,414 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:04:45,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:04:45 BoogieIcfgContainer [2021-10-13 08:04:45,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:04:45,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:04:45,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:04:45,440 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:04:45,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:03:00" (3/4) ... [2021-10-13 08:04:45,445 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 08:04:45,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:04:45,447 INFO L168 Benchmark]: Toolchain (without parser) took 107136.07 ms. Allocated memory was 62.9 MB in the beginning and 226.5 MB in the end (delta: 163.6 MB). Free memory was 42.2 MB in the beginning and 77.2 MB in the end (delta: -35.1 MB). Peak memory consumption was 128.0 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:45,447 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:04:45,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.01 ms. Allocated memory is still 62.9 MB. Free memory was 42.0 MB in the beginning and 34.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:45,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.01 ms. Allocated memory is still 62.9 MB. Free memory was 34.2 MB in the beginning and 31.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:45,449 INFO L168 Benchmark]: Boogie Preprocessor took 85.42 ms. Allocated memory is still 62.9 MB. Free memory was 31.4 MB in the beginning and 29.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:45,450 INFO L168 Benchmark]: RCFGBuilder took 1327.72 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 29.0 MB in the beginning and 57.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:45,450 INFO L168 Benchmark]: TraceAbstraction took 104962.83 ms. Allocated memory was 81.8 MB in the beginning and 226.5 MB in the end (delta: 144.7 MB). Free memory was 57.1 MB in the beginning and 77.2 MB in the end (delta: -20.2 MB). Peak memory consumption was 135.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:04:45,451 INFO L168 Benchmark]: Witness Printer took 6.97 ms. Allocated memory is still 226.5 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:04:45,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 662.01 ms. Allocated memory is still 62.9 MB. Free memory was 42.0 MB in the beginning and 34.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.01 ms. Allocated memory is still 62.9 MB. Free memory was 34.2 MB in the beginning and 31.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.42 ms. Allocated memory is still 62.9 MB. Free memory was 31.4 MB in the beginning and 29.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1327.72 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 29.0 MB in the beginning and 57.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 104962.83 ms. Allocated memory was 81.8 MB in the beginning and 226.5 MB in the end (delta: 144.7 MB). Free memory was 57.1 MB in the beginning and 77.2 MB in the end (delta: -20.2 MB). Peak memory consumption was 135.5 MB. Max. memory is 16.1 GB. * Witness Printer took 6.97 ms. Allocated memory is still 226.5 MB. Free memory is still 77.2 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 104861.6ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 32.1ms, AutomataDifference: 39774.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1186 SDtfs, 5981 SDslu, 2130 SDs, 0 SdLazy, 3325 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25531.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 268 GetRequests, 159 SyntacticMatches, 4 SemanticMatches, 105 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 40251.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=0, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 121.2ms AutomataMinimizationTime, 13 MinimizatonAttempts, 590 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 106.8ms SsaConstructionTime, 513.1ms SatisfiabilityAnalysisTime, 36650.3ms InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 224 ConstructedInterpolants, 24 QuantifiedInterpolants, 2688 SizeOfPredicates, 80 NumberOfNonLiveVariables, 901 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 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 [2021-10-13 08:04:45,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e606115d-8eca-4089-b6a3-c55274471b20/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...