./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 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0134.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:55:52,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:55:52,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:55:52,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:55:52,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:55:52,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:55:52,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:55:52,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:55:52,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:55:52,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:55:52,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:55:52,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:55:52,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:55:52,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:55:52,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:55:52,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:55:52,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:55:52,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:55:52,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:55:52,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:55:52,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:55:52,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:55:52,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:55:52,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:55:52,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:55:52,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:55:52,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:55:52,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:55:52,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:55:52,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:55:52,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:55:52,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:55:52,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:55:52,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:55:52,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:55:52,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:55:52,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:55:52,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:55:52,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:55:52,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:55:52,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:55:52,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-07 00:55:52,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:55:52,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:55:52,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:55:52,575 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:55:52,575 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:55:52,575 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:55:52,576 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:55:52,576 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:55:52,576 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:55:52,577 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:55:52,577 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:55:52,577 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:55:52,577 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:55:52,578 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:55:52,578 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:55:52,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 00:55:52,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 00:55:52,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:55:52,580 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:55:52,580 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 00:55:52,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:55:52,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:55:52,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:55:52,581 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 00:55:52,581 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 00:55:52,581 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 00:55:52,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:55:52,582 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:55:52,582 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:55:52,582 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:55:52,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:55:52,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:55:52,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:55:52,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:55:52,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:55:52,584 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:55:52,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:55:52,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:55:52,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:55:52,585 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_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c [2021-11-07 00:55:52,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:55:52,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:55:52,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:55:52,880 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:55:52,881 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:55:52,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/memsafety/test-0134.i [2021-11-07 00:55:52,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data/4910fab05/2957c1ab13494b22a3501d0eba82028e/FLAGa4f0ae531 [2021-11-07 00:55:53,700 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:55:53,701 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/sv-benchmarks/c/memsafety/test-0134.i [2021-11-07 00:55:53,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data/4910fab05/2957c1ab13494b22a3501d0eba82028e/FLAGa4f0ae531 [2021-11-07 00:55:53,962 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data/4910fab05/2957c1ab13494b22a3501d0eba82028e [2021-11-07 00:55:53,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:55:53,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:55:53,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:55:53,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:55:53,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:55:53,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:53" (1/1) ... [2021-11-07 00:55:53,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4727c930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:53, skipping insertion in model container [2021-11-07 00:55:53,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:53" (1/1) ... [2021-11-07 00:55:53,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:55:54,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:55:54,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:55:54,417 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:55:54,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24e2df7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:54, skipping insertion in model container [2021-11-07 00:55:54,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:55:54,419 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:55:54,421 INFO L168 Benchmark]: Toolchain (without parser) took 452.57 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 85.0 MB in the beginning and 113.3 MB in the end (delta: -28.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:55:54,422 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 117.4 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:55:54,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.48 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 85.0 MB in the beginning and 113.3 MB in the end (delta: -28.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:55:54,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 117.4 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 449.48 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 85.0 MB in the beginning and 113.3 MB in the end (delta: -28.3 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0134.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:55:57,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:55:57,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:55:57,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:55:57,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:55:57,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:55:57,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:55:57,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:55:57,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:55:57,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:55:57,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:55:57,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:55:57,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:55:57,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:55:57,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:55:57,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:55:57,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:55:57,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:55:57,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:55:57,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:55:57,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:55:57,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:55:57,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:55:57,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:55:57,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:55:57,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:55:57,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:55:57,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:55:57,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:55:57,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:55:57,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:55:57,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:55:57,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:55:57,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:55:57,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:55:57,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:55:57,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:55:57,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:55:57,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:55:57,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:55:57,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:55:57,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-07 00:55:57,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:55:57,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:55:57,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:55:57,223 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:55:57,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:55:57,224 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:55:57,224 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:55:57,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:55:57,224 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:55:57,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 00:55:57,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 00:55:57,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:55:57,226 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:55:57,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 00:55:57,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:55:57,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:55:57,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:55:57,227 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 00:55:57,227 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 00:55:57,228 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 00:55:57,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:55:57,228 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:55:57,228 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:55:57,228 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:55:57,228 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:55:57,229 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:55:57,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:55:57,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:55:57,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:55:57,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:55:57,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:55:57,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:55:57,230 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:55:57,230 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:55:57,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:55:57,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:55:57,231 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_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 554aa7448188134a862651a68c0992659f18748881f2b6912b6dbf17d440798c [2021-11-07 00:55:57,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:55:57,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:55:57,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:55:57,698 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:55:57,699 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:55:57,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/memsafety/test-0134.i [2021-11-07 00:55:57,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data/e44447149/66584a9bbcf142538900d602b709d88c/FLAG15ea9523c [2021-11-07 00:55:58,562 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:55:58,563 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/sv-benchmarks/c/memsafety/test-0134.i [2021-11-07 00:55:58,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data/e44447149/66584a9bbcf142538900d602b709d88c/FLAG15ea9523c [2021-11-07 00:55:58,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/data/e44447149/66584a9bbcf142538900d602b709d88c [2021-11-07 00:55:58,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:55:58,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:55:58,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:55:58,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:55:58,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:55:58,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:58" (1/1) ... [2021-11-07 00:55:58,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cd69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:58, skipping insertion in model container [2021-11-07 00:55:58,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:58" (1/1) ... [2021-11-07 00:55:58,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:55:58,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:55:59,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:55:59,337 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:55:59,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:55:59,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:55:59,384 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:55:59,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:55:59,520 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:55:59,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59 WrapperNode [2021-11-07 00:55:59,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:55:59,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:55:59,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:55:59,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:55:59,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:55:59,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:55:59,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:55:59,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:55:59,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:55:59,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:55:59,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:55:59,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:55:59,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (1/1) ... [2021-11-07 00:55:59,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:55:59,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:55:59,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:55:59,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:55:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:55:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:55:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:55:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:55:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:55:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:55:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:55:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:55:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:55:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:55:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:56:00,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:56:00,997 INFO L299 CfgBuilder]: Removed 46 assume(true) statements. [2021-11-07 00:56:01,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:56:01 BoogieIcfgContainer [2021-11-07 00:56:01,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:56:01,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:56:01,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:56:01,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:56:01,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:55:58" (1/3) ... [2021-11-07 00:56:01,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9a8a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:56:01, skipping insertion in model container [2021-11-07 00:56:01,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:59" (2/3) ... [2021-11-07 00:56:01,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9a8a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:56:01, skipping insertion in model container [2021-11-07 00:56:01,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:56:01" (3/3) ... [2021-11-07 00:56:01,017 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0134.i [2021-11-07 00:56:01,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:56:01,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2021-11-07 00:56:01,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:56:01,075 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:56:01,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2021-11-07 00:56:01,097 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) [2021-11-07 00:56:01,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 00:56:01,103 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:01,104 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 00:56:01,105 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:56:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 28694792, now seen corresponding path program 1 times [2021-11-07 00:56:01,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:01,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318052344] [2021-11-07 00:56:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:01,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:01,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:01,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:01,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:56:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:01,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 00:56:01,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:01,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:01,307 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:01,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318052344] [2021-11-07 00:56:01,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318052344] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:01,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:01,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:56:01,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702579042] [2021-11-07 00:56:01,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:56:01,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:01,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:56:01,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:56:01,343 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) [2021-11-07 00:56:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:01,384 INFO L93 Difference]: Finished difference Result 163 states and 169 transitions. [2021-11-07 00:56:01,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:56:01,386 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 [2021-11-07 00:56:01,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:01,400 INFO L225 Difference]: With dead ends: 163 [2021-11-07 00:56:01,401 INFO L226 Difference]: Without dead ends: 161 [2021-11-07 00:56:01,403 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:56:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-07 00:56:01,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2021-11-07 00:56:01,453 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) [2021-11-07 00:56:01,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 167 transitions. [2021-11-07 00:56:01,458 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 167 transitions. Word has length 5 [2021-11-07 00:56:01,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:01,458 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 167 transitions. [2021-11-07 00:56:01,459 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) [2021-11-07 00:56:01,459 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 167 transitions. [2021-11-07 00:56:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 00:56:01,460 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:01,460 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 00:56:01,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:01,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:01,673 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:56:01,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:01,674 INFO L85 PathProgramCache]: Analyzing trace with hash 28694854, now seen corresponding path program 1 times [2021-11-07 00:56:01,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:01,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776869958] [2021-11-07 00:56:01,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:01,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:01,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:01,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:01,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:56:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:01,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:56:01,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:01,851 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 [2021-11-07 00:56:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:01,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:01,899 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:01,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776869958] [2021-11-07 00:56:01,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776869958] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:01,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:01,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:56:01,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309121482] [2021-11-07 00:56:01,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:56:01,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:01,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:56:01,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:56:01,907 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) [2021-11-07 00:56:02,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:02,315 INFO L93 Difference]: Finished difference Result 183 states and 189 transitions. [2021-11-07 00:56:02,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:56:02,319 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 [2021-11-07 00:56:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:02,321 INFO L225 Difference]: With dead ends: 183 [2021-11-07 00:56:02,321 INFO L226 Difference]: Without dead ends: 183 [2021-11-07 00:56:02,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:56:02,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-07 00:56:02,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 160. [2021-11-07 00:56:02,334 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) [2021-11-07 00:56:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 166 transitions. [2021-11-07 00:56:02,337 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 166 transitions. Word has length 5 [2021-11-07 00:56:02,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:02,338 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 166 transitions. [2021-11-07 00:56:02,338 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) [2021-11-07 00:56:02,338 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 166 transitions. [2021-11-07 00:56:02,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 00:56:02,339 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:02,339 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 00:56:02,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:02,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:02,540 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:56:02,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:02,541 INFO L85 PathProgramCache]: Analyzing trace with hash 28694855, now seen corresponding path program 1 times [2021-11-07 00:56:02,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:02,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295601479] [2021-11-07 00:56:02,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:02,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:02,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:02,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:02,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:56:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:02,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 00:56:02,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:02,638 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 [2021-11-07 00:56:02,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:02,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:02,753 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:02,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295601479] [2021-11-07 00:56:02,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295601479] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:02,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:02,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 00:56:02,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39687957] [2021-11-07 00:56:02,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:56:02,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:02,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:56:02,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:02,756 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) [2021-11-07 00:56:03,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:03,473 INFO L93 Difference]: Finished difference Result 182 states and 188 transitions. [2021-11-07 00:56:03,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:56:03,474 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 [2021-11-07 00:56:03,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:03,476 INFO L225 Difference]: With dead ends: 182 [2021-11-07 00:56:03,476 INFO L226 Difference]: Without dead ends: 182 [2021-11-07 00:56:03,477 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:56:03,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-07 00:56:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 159. [2021-11-07 00:56:03,487 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) [2021-11-07 00:56:03,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 165 transitions. [2021-11-07 00:56:03,489 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 165 transitions. Word has length 5 [2021-11-07 00:56:03,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:03,489 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 165 transitions. [2021-11-07 00:56:03,489 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) [2021-11-07 00:56:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 165 transitions. [2021-11-07 00:56:03,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 00:56:03,490 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:03,490 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:03,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:03,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:03,722 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:56:03,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:03,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1805950471, now seen corresponding path program 1 times [2021-11-07 00:56:03,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:03,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559290999] [2021-11-07 00:56:03,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:03,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:03,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:03,728 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:03,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:56:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:03,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 00:56:03,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:03,925 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 00:56:03,926 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 [2021-11-07 00:56:04,255 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-07 00:56:04,256 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 [2021-11-07 00:56:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:04,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:06,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:06,681 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:06,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559290999] [2021-11-07 00:56:06,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559290999] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:06,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:06,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 00:56:06,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129495563] [2021-11-07 00:56:06,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 00:56:06,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:06,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 00:56:06,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=26, Unknown=1, NotChecked=0, Total=42 [2021-11-07 00:56:06,685 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) [2021-11-07 00:56:07,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:07,386 INFO L93 Difference]: Finished difference Result 180 states and 186 transitions. [2021-11-07 00:56:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:56:07,386 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 [2021-11-07 00:56:07,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:07,388 INFO L225 Difference]: With dead ends: 180 [2021-11-07 00:56:07,388 INFO L226 Difference]: Without dead ends: 180 [2021-11-07 00:56:07,389 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=22, Invalid=33, Unknown=1, NotChecked=0, Total=56 [2021-11-07 00:56:07,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-07 00:56:07,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 158. [2021-11-07 00:56:07,399 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) [2021-11-07 00:56:07,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 165 transitions. [2021-11-07 00:56:07,401 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 165 transitions. Word has length 7 [2021-11-07 00:56:07,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:07,401 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 165 transitions. [2021-11-07 00:56:07,401 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) [2021-11-07 00:56:07,402 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 165 transitions. [2021-11-07 00:56:07,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 00:56:07,402 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:07,403 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:07,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 00:56:07,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:07,624 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:56:07,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:07,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1805950472, now seen corresponding path program 1 times [2021-11-07 00:56:07,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:07,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103075088] [2021-11-07 00:56:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:07,626 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:07,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:07,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:07,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:56:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:07,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 00:56:07,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:07,840 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-11-07 00:56:07,840 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 [2021-11-07 00:56:07,920 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 00:56:07,920 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 [2021-11-07 00:56:08,243 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-07 00:56:08,244 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 [2021-11-07 00:56:08,288 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-11-07 00:56:08,288 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 [2021-11-07 00:56:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:09,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:11,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:11,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:11,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103075088] [2021-11-07 00:56:11,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103075088] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:11,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:11,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-11-07 00:56:11,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055254296] [2021-11-07 00:56:11,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 00:56:11,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:11,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 00:56:11,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2021-11-07 00:56:11,542 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) [2021-11-07 00:56:17,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:17,924 INFO L93 Difference]: Finished difference Result 194 states and 200 transitions. [2021-11-07 00:56:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 00:56:17,925 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 [2021-11-07 00:56:17,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:17,926 INFO L225 Difference]: With dead ends: 194 [2021-11-07 00:56:17,926 INFO L226 Difference]: Without dead ends: 194 [2021-11-07 00:56:17,926 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=76, Invalid=133, Unknown=1, NotChecked=0, Total=210 [2021-11-07 00:56:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-07 00:56:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 154. [2021-11-07 00:56:17,939 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) [2021-11-07 00:56:17,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 160 transitions. [2021-11-07 00:56:17,944 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 160 transitions. Word has length 7 [2021-11-07 00:56:17,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:17,945 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 160 transitions. [2021-11-07 00:56:17,945 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) [2021-11-07 00:56:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 160 transitions. [2021-11-07 00:56:17,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 00:56:17,946 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:17,946 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:17,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:18,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:18,147 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:56:18,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:18,148 INFO L85 PathProgramCache]: Analyzing trace with hash 351614728, now seen corresponding path program 1 times [2021-11-07 00:56:18,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:18,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151741824] [2021-11-07 00:56:18,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:18,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:18,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:18,149 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:18,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:56:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:18,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 00:56:18,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:18,422 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 00:56:18,422 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 [2021-11-07 00:56:18,710 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 00:56:18,711 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 [2021-11-07 00:56:18,832 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-07 00:56:18,832 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 [2021-11-07 00:56:18,893 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 [2021-11-07 00:56:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:18,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:18,999 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-11-07 00:56:19,000 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 [2021-11-07 00:56:19,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:19,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-07 00:56:25,943 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_13 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_13))) (forall ((v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32))) (= |c_~#gl_list~0.base| (select (select (store |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_13 (store (store (store (store (select |c_#memory_$Pointer$.base| v_ULTIMATE.start_gl_insert_~node~0.base_13) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_1) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32)) v_DerPreprocessor_2) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32)) v_DerPreprocessor_3) (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)) v_DerPreprocessor_4)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) is different from false [2021-11-07 00:56:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:26,005 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:26,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151741824] [2021-11-07 00:56:26,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151741824] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:26,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:26,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 00:56:26,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90999756] [2021-11-07 00:56:26,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 00:56:26,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 00:56:26,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=52, Unknown=3, NotChecked=14, Total=90 [2021-11-07 00:56:26,007 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) [2021-11-07 00:56:27,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:56:27,117 INFO L93 Difference]: Finished difference Result 188 states and 194 transitions. [2021-11-07 00:56:27,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 00:56:27,117 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 [2021-11-07 00:56:27,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:56:27,119 INFO L225 Difference]: With dead ends: 188 [2021-11-07 00:56:27,119 INFO L226 Difference]: Without dead ends: 188 [2021-11-07 00:56:27,120 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=62, Invalid=121, Unknown=3, NotChecked=24, Total=210 [2021-11-07 00:56:27,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-07 00:56:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 161. [2021-11-07 00:56:27,125 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) [2021-11-07 00:56:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2021-11-07 00:56:27,126 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 9 [2021-11-07 00:56:27,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:56:27,127 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2021-11-07 00:56:27,127 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) [2021-11-07 00:56:27,127 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2021-11-07 00:56:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 00:56:27,128 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:56:27,128 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:56:27,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:56:27,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:56:27,345 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:56:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:56:27,346 INFO L85 PathProgramCache]: Analyzing trace with hash 351614729, now seen corresponding path program 1 times [2021-11-07 00:56:27,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:56:27,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564192575] [2021-11-07 00:56:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:56:27,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:56:27,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:56:27,349 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:56:27,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 00:56:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:56:27,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 00:56:27,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:56:27,642 INFO L354 Elim1Store]: treesize reduction 77, result has 29.4 percent of original size [2021-11-07 00:56:27,642 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 [2021-11-07 00:56:27,709 INFO L354 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-11-07 00:56:27,709 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 [2021-11-07 00:56:28,154 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-07 00:56:28,155 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 [2021-11-07 00:56:28,214 INFO L354 Elim1Store]: treesize reduction 2, result has 92.0 percent of original size [2021-11-07 00:56:28,214 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 [2021-11-07 00:56:29,343 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-07 00:56:29,344 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 [2021-11-07 00:56:29,415 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-07 00:56:29,415 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 [2021-11-07 00:56:29,577 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 [2021-11-07 00:56:29,587 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 [2021-11-07 00:56:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:29,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:56:30,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:30,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-07 00:56:30,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:56:30,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-11-07 00:56:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:56:53,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:56:53,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564192575] [2021-11-07 00:56:53,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564192575] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:56:53,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:56:53,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-11-07 00:56:53,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479699927] [2021-11-07 00:56:53,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 00:56:53,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:56:53,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 00:56:53,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=140, Unknown=7, NotChecked=0, Total=182 [2021-11-07 00:56:53,570 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) [2021-11-07 00:56:58,836 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_list_add_~head.base) c_ULTIMATE.start_list_add_~head.offset))) (let ((.cse5 (bvadd (_ bv8 32) .cse4))) (and (= (select |c_#length| c_ULTIMATE.start___list_add_~next.base) (_ bv8 32)) (forall ((v_ULTIMATE.start_gl_insert_~node~0.base_14 (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| v_ULTIMATE.start_gl_insert_~node~0.base_14))) (and (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse0 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32))) (.cse1 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32))) (.cse2 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)))) (bvule (bvadd (select (select (store |c_#memory_$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$.base| c_ULTIMATE.start_list_add_~head.base) c_ULTIMATE.start_list_add_~head.offset))) (exists ((ULTIMATE.start_gl_insert_~node~0.base (_ BitVec 32))) (= (select |c_#length| ULTIMATE.start_gl_insert_~node~0.base) (_ bv12 32))) (= c_ULTIMATE.start___list_add_~next.offset (_ bv0 32)) (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (let ((.cse6 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv1 32))) (.cse7 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv2 32))) (.cse8 (bvadd ULTIMATE.start_gl_insert_~node~0.offset (_ bv3 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.offset| c_ULTIMATE.start_gl_insert_~node~0.base) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_9) .cse6 v_DerPreprocessor_10) .cse7 v_DerPreprocessor_11) .cse8 v_DerPreprocessor_12)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~0.base (store (store (store (store (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_gl_insert_~node~0.base) ULTIMATE.start_gl_insert_~node~0.offset v_DerPreprocessor_5) .cse6 v_DerPreprocessor_6) .cse7 v_DerPreprocessor_7) .cse8 v_DerPreprocessor_8)) |c_~#gl_list~0.base|) |c_~#gl_list~0.offset|))))) (forall ((v_DerPreprocessor_10 (_ BitVec 32)) (ULTIMATE.start_gl_insert_~node~0.offset (_ BitVec 32)) (v_DerPreprocessor_11 (_ BitVec 32)) (v_DerPreprocessor_12 (_ BitVec 32)) (v_DerPreprocessor_9 (_ BitVec 32))) (let ((.cse9 (select (select (store |c_#memory_$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) .cse9) (bvadd (_ bv8 32) .cse9))))))) is different from false [2021-11-07 00:57:28,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:28,230 INFO L93 Difference]: Finished difference Result 256 states and 268 transitions. [2021-11-07 00:57:28,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 00:57:28,235 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 [2021-11-07 00:57:28,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:28,237 INFO L225 Difference]: With dead ends: 256 [2021-11-07 00:57:28,237 INFO L226 Difference]: Without dead ends: 256 [2021-11-07 00:57:28,237 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=97, Invalid=240, Unknown=9, NotChecked=34, Total=380 [2021-11-07 00:57:28,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-07 00:57:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 161. [2021-11-07 00:57:28,242 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) [2021-11-07 00:57:28,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 167 transitions. [2021-11-07 00:57:28,244 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 167 transitions. Word has length 9 [2021-11-07 00:57:28,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:28,244 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 167 transitions. [2021-11-07 00:57:28,244 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) [2021-11-07 00:57:28,245 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 167 transitions. [2021-11-07 00:57:28,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 00:57:28,245 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:28,245 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:28,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:28,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:28,454 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:57:28,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:28,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1984845326, now seen corresponding path program 1 times [2021-11-07 00:57:28,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:28,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852850300] [2021-11-07 00:57:28,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:28,457 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:28,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:28,458 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:28,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 00:57:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:28,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 00:57:28,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:28,594 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 [2021-11-07 00:57:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:28,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:28,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:28,706 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:28,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852850300] [2021-11-07 00:57:28,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852850300] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:28,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:57:28,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 00:57:28,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325323288] [2021-11-07 00:57:28,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:57:28,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:28,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:57:28,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:57:28,708 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) [2021-11-07 00:57:29,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:29,326 INFO L93 Difference]: Finished difference Result 220 states and 230 transitions. [2021-11-07 00:57:29,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 00:57:29,338 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 [2021-11-07 00:57:29,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:29,340 INFO L225 Difference]: With dead ends: 220 [2021-11-07 00:57:29,340 INFO L226 Difference]: Without dead ends: 220 [2021-11-07 00:57:29,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 00:57:29,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-07 00:57:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 157. [2021-11-07 00:57:29,346 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) [2021-11-07 00:57:29,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2021-11-07 00:57:29,347 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 10 [2021-11-07 00:57:29,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:29,348 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2021-11-07 00:57:29,348 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) [2021-11-07 00:57:29,348 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2021-11-07 00:57:29,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 00:57:29,349 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:29,349 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:29,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:29,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:29,561 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:57:29,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:29,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1984845325, now seen corresponding path program 1 times [2021-11-07 00:57:29,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:29,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960229924] [2021-11-07 00:57:29,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:29,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:29,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:29,563 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:29,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 00:57:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:29,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 00:57:29,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:29,735 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 [2021-11-07 00:57:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:29,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:30,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:30,191 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:30,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960229924] [2021-11-07 00:57:30,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960229924] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:30,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:57:30,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 00:57:30,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7337576] [2021-11-07 00:57:30,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 00:57:30,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:30,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 00:57:30,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 00:57:30,194 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) [2021-11-07 00:57:32,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:32,603 INFO L93 Difference]: Finished difference Result 220 states and 230 transitions. [2021-11-07 00:57:32,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 00:57:32,605 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 [2021-11-07 00:57:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:32,606 INFO L225 Difference]: With dead ends: 220 [2021-11-07 00:57:32,606 INFO L226 Difference]: Without dead ends: 220 [2021-11-07 00:57:32,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-07 00:57:32,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-07 00:57:32,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 155. [2021-11-07 00:57:32,611 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) [2021-11-07 00:57:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 161 transitions. [2021-11-07 00:57:32,612 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 161 transitions. Word has length 10 [2021-11-07 00:57:32,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:32,613 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 161 transitions. [2021-11-07 00:57:32,613 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) [2021-11-07 00:57:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 161 transitions. [2021-11-07 00:57:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 00:57:32,614 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:32,614 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:32,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-07 00:57:32,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:32,819 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:57:32,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:32,819 INFO L85 PathProgramCache]: Analyzing trace with hash -470878954, now seen corresponding path program 1 times [2021-11-07 00:57:32,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:32,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055599950] [2021-11-07 00:57:32,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:32,820 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:32,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:32,821 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:32,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 00:57:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:32,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 00:57:32,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:33,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:33,384 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 [2021-11-07 00:57:33,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:33,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:33,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055599950] [2021-11-07 00:57:33,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055599950] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:33,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:57:33,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-07 00:57:33,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740143515] [2021-11-07 00:57:33,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 00:57:33,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:33,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 00:57:33,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-07 00:57:33,509 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) [2021-11-07 00:57:34,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:34,974 INFO L93 Difference]: Finished difference Result 225 states and 235 transitions. [2021-11-07 00:57:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 00:57:34,975 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 [2021-11-07 00:57:34,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:34,977 INFO L225 Difference]: With dead ends: 225 [2021-11-07 00:57:34,977 INFO L226 Difference]: Without dead ends: 225 [2021-11-07 00:57:34,978 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-11-07 00:57:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-07 00:57:34,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 152. [2021-11-07 00:57:34,996 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) [2021-11-07 00:57:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 158 transitions. [2021-11-07 00:57:34,997 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 158 transitions. Word has length 12 [2021-11-07 00:57:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:34,997 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 158 transitions. [2021-11-07 00:57:34,998 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) [2021-11-07 00:57:34,998 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2021-11-07 00:57:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 00:57:34,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:34,999 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:35,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:35,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:35,211 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:57:35,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:35,211 INFO L85 PathProgramCache]: Analyzing trace with hash -470878955, now seen corresponding path program 1 times [2021-11-07 00:57:35,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:35,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472691007] [2021-11-07 00:57:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:35,212 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:35,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:35,213 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:35,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 00:57:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:35,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:57:35,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:35,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:35,494 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:35,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472691007] [2021-11-07 00:57:35,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472691007] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:35,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:57:35,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:57:35,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059867109] [2021-11-07 00:57:35,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:57:35,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:35,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:57:35,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:57:35,496 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) [2021-11-07 00:57:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:35,889 INFO L93 Difference]: Finished difference Result 165 states and 171 transitions. [2021-11-07 00:57:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:57:35,890 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 [2021-11-07 00:57:35,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:35,891 INFO L225 Difference]: With dead ends: 165 [2021-11-07 00:57:35,891 INFO L226 Difference]: Without dead ends: 165 [2021-11-07 00:57:35,891 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:57:35,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-07 00:57:35,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 149. [2021-11-07 00:57:35,895 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) [2021-11-07 00:57:35,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 155 transitions. [2021-11-07 00:57:35,896 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 155 transitions. Word has length 12 [2021-11-07 00:57:35,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:35,897 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 155 transitions. [2021-11-07 00:57:35,897 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) [2021-11-07 00:57:35,897 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 155 transitions. [2021-11-07 00:57:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 00:57:35,898 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:35,898 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:35,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:36,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:36,113 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:57:36,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:36,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1741445100, now seen corresponding path program 1 times [2021-11-07 00:57:36,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:36,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735123352] [2021-11-07 00:57:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:36,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:36,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:36,116 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:36,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 00:57:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:36,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 00:57:36,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:36,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:36,503 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-07 00:57:36,504 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 [2021-11-07 00:57:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:36,526 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:36,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735123352] [2021-11-07 00:57:36,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735123352] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:36,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:57:36,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 00:57:36,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584775380] [2021-11-07 00:57:36,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 00:57:36,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:36,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 00:57:36,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:57:36,528 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) [2021-11-07 00:57:37,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:37,190 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2021-11-07 00:57:37,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 00:57:37,190 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 [2021-11-07 00:57:37,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:37,192 INFO L225 Difference]: With dead ends: 227 [2021-11-07 00:57:37,192 INFO L226 Difference]: Without dead ends: 227 [2021-11-07 00:57:37,193 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 00:57:37,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-07 00:57:37,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 147. [2021-11-07 00:57:37,196 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) [2021-11-07 00:57:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 153 transitions. [2021-11-07 00:57:37,197 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 153 transitions. Word has length 17 [2021-11-07 00:57:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:37,198 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 153 transitions. [2021-11-07 00:57:37,198 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) [2021-11-07 00:57:37,198 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 153 transitions. [2021-11-07 00:57:37,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 00:57:37,198 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:37,199 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:37,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:37,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:37,399 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:57:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1741445099, now seen corresponding path program 1 times [2021-11-07 00:57:37,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:37,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553960292] [2021-11-07 00:57:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:37,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:37,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:37,401 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:37,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 00:57:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:37,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 00:57:37,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:37,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:38,095 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:57:38,095 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 [2021-11-07 00:57:38,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:38,366 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:38,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553960292] [2021-11-07 00:57:38,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553960292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:57:38,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:57:38,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-07 00:57:38,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739168023] [2021-11-07 00:57:38,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 00:57:38,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:57:38,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 00:57:38,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 00:57:38,369 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) [2021-11-07 00:57:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:57:39,428 INFO L93 Difference]: Finished difference Result 208 states and 218 transitions. [2021-11-07 00:57:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 00:57:39,429 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 [2021-11-07 00:57:39,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:57:39,430 INFO L225 Difference]: With dead ends: 208 [2021-11-07 00:57:39,430 INFO L226 Difference]: Without dead ends: 208 [2021-11-07 00:57:39,430 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-07 00:57:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-07 00:57:39,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 145. [2021-11-07 00:57:39,433 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) [2021-11-07 00:57:39,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2021-11-07 00:57:39,434 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 17 [2021-11-07 00:57:39,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:57:39,434 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2021-11-07 00:57:39,434 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) [2021-11-07 00:57:39,434 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2021-11-07 00:57:39,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 00:57:39,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:39,438 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:39,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 00:57:39,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:57:39,652 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 72 more)] === [2021-11-07 00:57:39,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:39,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1992274679, now seen corresponding path program 1 times [2021-11-07 00:57:39,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:39,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995761519] [2021-11-07 00:57:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:39,654 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:39,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:39,667 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:39,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 00:57:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:39,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-07 00:57:39,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:40,014 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 [2021-11-07 00:57:40,307 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 [2021-11-07 00:57:40,462 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-11-07 00:57:40,463 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 [2021-11-07 00:57:40,687 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-07 00:57:40,687 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 [2021-11-07 00:57:40,926 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 [2021-11-07 00:57:41,253 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:41,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:41,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:57:41,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 00:57:48,725 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 [2021-11-07 00:57:48,920 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 [2021-11-07 00:57:50,441 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:57:50,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995761519] [2021-11-07 00:57:50,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 00:57:50,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2068488680] [2021-11-07 00:57:50,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:50,443 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:50,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 00:57:50,445 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 00:57:50,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-07 00:57:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:57:50,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-07 00:57:50,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:57:50,967 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 [2021-11-07 00:57:51,044 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 [2021-11-07 00:57:51,513 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 [2021-11-07 00:57:51,705 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-07 00:57:51,706 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 [2021-11-07 00:57:52,120 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-07 00:57:52,120 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 [2021-11-07 00:57:52,491 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 46 treesize of output 34 [2021-11-07 00:57:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:57:53,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:57:53,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:57:53,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 00:57:57,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 624368 treesize of output 622320 [2021-11-07 00:57:59,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 00:57:59,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138344735] [2021-11-07 00:57:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:59,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 00:57:59,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:57:59,974 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 00:57:59,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 00:58:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:00,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 00:58:00,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:00,627 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 [2021-11-07 00:58:00,775 INFO L354 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2021-11-07 00:58:00,775 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 [2021-11-07 00:58:00,953 INFO L354 Elim1Store]: treesize reduction 336, result has 2.0 percent of original size [2021-11-07 00:58:00,953 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 [2021-11-07 00:58:01,045 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 [2021-11-07 00:58:01,246 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:58:01,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:01,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:58:01,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-11-07 00:58:03,369 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 [2021-11-07 00:58:05,470 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 [2021-11-07 00:58:05,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 336692 treesize of output 335668 [2021-11-07 00:58:06,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 00:58:06,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:06,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 00:58:06,613 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 00:58:06,613 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 00:58:06,620 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-11-07 00:58:06,622 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-11-07 00:58:06,622 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-11-07 00:58:06,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-11-07 00:58:06,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-11-07 00:58:06,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-11-07 00:58:06,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-11-07 00:58:06,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-11-07 00:58:06,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-11-07 00:58:06,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-11-07 00:58:06,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-11-07 00:58:06,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-11-07 00:58:06,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-11-07 00:58:06,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-11-07 00:58:06,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-11-07 00:58:06,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-11-07 00:58:06,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-11-07 00:58:06,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-11-07 00:58:06,625 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-11-07 00:58:06,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-11-07 00:58:06,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-11-07 00:58:06,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-11-07 00:58:06,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-11-07 00:58:06,626 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-11-07 00:58:06,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-11-07 00:58:06,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-11-07 00:58:06,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-11-07 00:58:06,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-11-07 00:58:06,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-11-07 00:58:06,627 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-11-07 00:58:06,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-11-07 00:58:06,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-11-07 00:58:06,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-11-07 00:58:06,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-11-07 00:58:06,628 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-11-07 00:58:06,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-11-07 00:58:06,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-11-07 00:58:06,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-11-07 00:58:06,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-11-07 00:58:06,629 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-11-07 00:58:06,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-11-07 00:58:06,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-11-07 00:58:06,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-11-07 00:58:06,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-11-07 00:58:06,630 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-11-07 00:58:06,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-11-07 00:58:06,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-11-07 00:58:06,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-11-07 00:58:06,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-11-07 00:58:06,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-11-07 00:58:06,631 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATION [2021-11-07 00:58:06,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATION [2021-11-07 00:58:06,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATION [2021-11-07 00:58:06,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-11-07 00:58:06,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATION [2021-11-07 00:58:06,632 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-11-07 00:58:06,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-11-07 00:58:06,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57REQUIRES_VIOLATION [2021-11-07 00:58:06,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATION [2021-11-07 00:58:06,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATION [2021-11-07 00:58:06,633 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATION [2021-11-07 00:58:06,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61REQUIRES_VIOLATION [2021-11-07 00:58:06,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62REQUIRES_VIOLATION [2021-11-07 00:58:06,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATION [2021-11-07 00:58:06,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATION [2021-11-07 00:58:06,634 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65REQUIRES_VIOLATION [2021-11-07 00:58:06,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66REQUIRES_VIOLATION [2021-11-07 00:58:06,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67REQUIRES_VIOLATION [2021-11-07 00:58:06,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68REQUIRES_VIOLATION [2021-11-07 00:58:06,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69REQUIRES_VIOLATION [2021-11-07 00:58:06,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70REQUIRES_VIOLATION [2021-11-07 00:58:06,635 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATION [2021-11-07 00:58:06,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 00:58:06,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 00:58:06,636 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 00:58:06,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_LEAK [2021-11-07 00:58:06,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:06,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:07,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-07 00:58:07,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:07,244 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:58:07,249 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 00:58:07,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:58:07 BoogieIcfgContainer [2021-11-07 00:58:07,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 00:58:07,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 00:58:07,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 00:58:07,265 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 00:58:07,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:56:01" (3/4) ... [2021-11-07 00:58:07,268 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 00:58:07,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 00:58:07,270 INFO L168 Benchmark]: Toolchain (without parser) took 128463.66 ms. Allocated memory was 56.6 MB in the beginning and 312.5 MB in the end (delta: 255.9 MB). Free memory was 33.2 MB in the beginning and 168.2 MB in the end (delta: -134.9 MB). Peak memory consumption was 120.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:07,270 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 37.7 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:58:07,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.06 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.0 MB in the beginning and 52.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:07,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.73 ms. Allocated memory is still 71.3 MB. Free memory was 52.7 MB in the beginning and 49.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:07,272 INFO L168 Benchmark]: Boogie Preprocessor took 47.61 ms. Allocated memory is still 71.3 MB. Free memory was 49.9 MB in the beginning and 47.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:07,272 INFO L168 Benchmark]: RCFGBuilder took 1344.75 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 36.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:07,273 INFO L168 Benchmark]: TraceAbstraction took 126255.46 ms. Allocated memory was 71.3 MB in the beginning and 312.5 MB in the end (delta: 241.2 MB). Free memory was 36.0 MB in the beginning and 168.2 MB in the end (delta: -132.2 MB). Peak memory consumption was 178.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:07,273 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 312.5 MB. Free memory is still 168.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:58:07,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 37.7 MB in the end (delta: 44.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 714.06 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.0 MB in the beginning and 52.7 MB in the end (delta: -19.7 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.73 ms. Allocated memory is still 71.3 MB. Free memory was 52.7 MB in the beginning and 49.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.61 ms. Allocated memory is still 71.3 MB. Free memory was 49.9 MB in the beginning and 47.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1344.75 ms. Allocated memory is still 71.3 MB. Free memory was 47.4 MB in the beginning and 36.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 126255.46 ms. Allocated memory was 71.3 MB in the beginning and 312.5 MB in the end (delta: 241.2 MB). Free memory was 36.0 MB in the beginning and 168.2 MB in the end (delta: -132.2 MB). Peak memory consumption was 178.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.65 ms. Allocated memory is still 312.5 MB. Free memory is still 168.2 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L564] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) [L570] node->value = value [L547] head->next [L535] next->prev = new [L536] new->next = next [L537] new->prev = prev [L538] prev->next = new [L578] COND TRUE __VERIFIER_nondet_int() [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) [L570] node->value = value [L547] head->next [L535] next->prev = new - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 529]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 596]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 596]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 598]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 535]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 536]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 537]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 551]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 542]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 543]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 585]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 618]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 163 locations, 76 error locations. Started 1 CEGAR loops. OverallTime: 126.1s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 50.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1186 SDtfs, 5978 SDslu, 2087 SDs, 0 SdLazy, 3414 SolverSat, 210 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 268 GetRequests, 158 SyntacticMatches, 5 SemanticMatches, 105 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 46.4s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 590 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 53.5s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 245 ConstructedInterpolants, 30 QuantifiedInterpolants, 3252 SizeOfPredicates, 104 NumberOfNonLiveVariables, 1044 ConjunctsInSsa, 128 ConjunctsInUnsatCore, 27 InterpolantComputations, 26 PerfectInterpolantSequences, 3/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 00:58:07,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4f46308-7dcc-4e3c-833a-7daf73bf276b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN