./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:08:29,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:08:29,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:08:29,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:08:29,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:08:29,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:08:29,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:08:29,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:08:29,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:08:29,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:08:29,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:08:29,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:08:29,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:08:29,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:08:29,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:08:29,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:08:29,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:08:29,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:08:29,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:08:29,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:08:29,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:08:29,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:08:29,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:08:29,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:08:29,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:08:29,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:08:29,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:08:29,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:08:29,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:08:29,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:08:29,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:08:29,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:08:29,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:08:29,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:08:29,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:08:29,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:08:29,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:08:29,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:08:29,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:08:29,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:08:29,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:08:29,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:08:29,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:08:29,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:08:29,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:08:29,599 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:08:29,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:08:29,600 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:08:29,600 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:08:29,600 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:08:29,606 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:08:29,607 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:08:29,608 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:08:29,608 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:08:29,608 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:08:29,608 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:08:29,609 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:08:29,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:08:29,610 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:08:29,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:08:29,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:08:29,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:08:29,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:08:29,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:08:29,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:08:29,612 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:08:29,612 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:08:29,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:08:29,612 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:08:29,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:08:29,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:08:29,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:08:29,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:08:29,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:08:29,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:08:29,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:08:29,616 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:08:29,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:08:29,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:08:29,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:08:29,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:08:29,617 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_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2021-10-24 11:08:29,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:08:29,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:08:29,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:08:29,931 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:08:29,931 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:08:29,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-10-24 11:08:30,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data/9a94db52f/2e4682ad7aa4461a8829974497eb9f33/FLAG355d38c3e [2021-10-24 11:08:30,544 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:08:30,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-10-24 11:08:30,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data/9a94db52f/2e4682ad7aa4461a8829974497eb9f33/FLAG355d38c3e [2021-10-24 11:08:30,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data/9a94db52f/2e4682ad7aa4461a8829974497eb9f33 [2021-10-24 11:08:30,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:08:30,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:08:30,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:08:30,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:08:30,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:08:30,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:08:30" (1/1) ... [2021-10-24 11:08:30,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3342146d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:30, skipping insertion in model container [2021-10-24 11:08:30,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:08:30" (1/1) ... [2021-10-24 11:08:30,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:08:30,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:08:31,115 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-10-24 11:08:31,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:08:31,135 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 11:08:31,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e7ae02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:31, skipping insertion in model container [2021-10-24 11:08:31,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:08:31,137 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 11:08:31,139 INFO L168 Benchmark]: Toolchain (without parser) took 251.93 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 47.1 MB in the beginning and 82.5 MB in the end (delta: -35.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:08:31,140 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:08:31,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.32 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 46.9 MB in the beginning and 82.5 MB in the end (delta: -35.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:08:31,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.32 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 46.9 MB in the beginning and 82.5 MB in the end (delta: -35.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 101]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:08:33,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:08:33,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:08:33,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:08:33,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:08:33,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:08:33,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:08:33,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:08:33,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:08:33,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:08:33,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:08:33,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:08:33,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:08:33,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:08:33,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:08:33,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:08:33,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:08:33,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:08:33,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:08:33,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:08:33,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:08:33,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:08:33,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:08:33,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:08:33,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:08:33,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:08:33,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:08:33,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:08:33,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:08:33,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:08:33,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:08:33,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:08:33,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:08:33,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:08:33,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:08:33,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:08:33,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:08:33,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:08:33,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:08:33,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:08:33,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:08:33,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 11:08:33,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:08:33,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:08:33,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:08:33,512 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:08:33,512 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:08:33,512 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:08:33,512 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:08:33,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:08:33,513 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:08:33,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:08:33,514 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:08:33,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:08:33,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:08:33,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:08:33,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:08:33,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:08:33,515 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:08:33,515 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 11:08:33,515 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 11:08:33,515 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:08:33,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:08:33,516 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:08:33,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:08:33,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:08:33,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 11:08:33,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:08:33,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:08:33,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:08:33,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:08:33,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:08:33,517 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 11:08:33,517 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 11:08:33,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:08:33,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:08:33,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:08:33,518 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_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2021-10-24 11:08:33,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:08:33,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:08:33,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:08:33,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:08:33,902 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:08:33,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-10-24 11:08:33,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data/b84e8f772/805fe2210dc74579b3e033e07ab5b4e3/FLAGd39f2dc6a [2021-10-24 11:08:34,507 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:08:34,508 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2021-10-24 11:08:34,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data/b84e8f772/805fe2210dc74579b3e033e07ab5b4e3/FLAGd39f2dc6a [2021-10-24 11:08:34,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/data/b84e8f772/805fe2210dc74579b3e033e07ab5b4e3 [2021-10-24 11:08:34,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:08:34,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:08:34,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:08:34,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:08:34,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:08:34,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:08:34" (1/1) ... [2021-10-24 11:08:34,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46930e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:34, skipping insertion in model container [2021-10-24 11:08:34,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:08:34" (1/1) ... [2021-10-24 11:08:34,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:08:34,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:08:35,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-10-24 11:08:35,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:08:35,085 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 11:08:35,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:08:35,107 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-10-24 11:08:35,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:08:35,133 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:08:35,197 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2021-10-24 11:08:35,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:08:35,223 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:08:35,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35 WrapperNode [2021-10-24 11:08:35,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:08:35,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:08:35,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:08:35,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:08:35,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:08:35,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:08:35,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:08:35,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:08:35,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:08:35,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:08:35,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:08:35,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:08:35,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (1/1) ... [2021-10-24 11:08:35,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:08:35,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:08:35,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:08:35,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:08:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 11:08:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:08:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 11:08:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-24 11:08:35,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-24 11:08:35,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-24 11:08:35,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-24 11:08:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 11:08:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:08:35,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:08:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 11:08:35,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 11:08:35,471 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-24 11:08:36,206 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:08:36,207 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-10-24 11:08:36,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:08:36 BoogieIcfgContainer [2021-10-24 11:08:36,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:08:36,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:08:36,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:08:36,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:08:36,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:08:34" (1/3) ... [2021-10-24 11:08:36,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6453b51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:08:36, skipping insertion in model container [2021-10-24 11:08:36,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:08:35" (2/3) ... [2021-10-24 11:08:36,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6453b51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:08:36, skipping insertion in model container [2021-10-24 11:08:36,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:08:36" (3/3) ... [2021-10-24 11:08:36,217 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2021-10-24 11:08:36,222 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-24 11:08:36,223 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:08:36,223 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 11:08:36,223 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-24 11:08:36,261 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,261 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,262 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,262 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,262 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,262 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,263 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,263 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,263 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,263 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,264 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,264 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,264 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,265 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,265 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,265 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,265 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,266 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,266 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,266 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,267 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,267 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,267 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,267 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,268 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,268 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,268 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,268 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,268 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,269 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,269 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,269 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,269 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,270 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,270 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,270 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,270 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,271 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,271 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,271 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,271 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,272 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,272 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,272 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,272 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,273 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,273 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,273 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,273 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,274 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,274 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,274 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,274 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,275 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,275 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,275 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,275 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,275 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,276 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,276 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,276 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,277 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,277 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,277 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,277 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,277 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,278 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,278 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,278 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,279 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,279 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,280 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,280 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,280 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,280 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,281 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,281 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,282 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,282 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,282 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,283 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,283 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,283 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,283 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,284 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,284 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,284 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,284 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,285 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,285 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,285 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,285 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,285 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,286 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,286 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,286 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,286 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,287 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,287 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,287 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,287 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,288 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,288 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,288 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,289 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,289 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,289 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,289 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,289 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,290 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,290 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,290 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,290 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,291 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,291 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,292 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,292 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,292 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,293 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,293 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,293 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,293 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,294 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,294 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,295 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,295 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,295 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,295 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,296 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,296 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,296 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,296 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,297 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,298 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,299 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,299 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,299 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,299 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,299 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,300 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,300 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,300 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,300 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,301 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,301 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,301 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,301 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,301 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,302 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,302 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,302 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,302 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,303 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,303 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,303 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,303 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,303 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,304 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,304 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,304 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,304 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,304 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,305 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,305 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,305 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,305 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,306 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,306 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,306 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,306 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,306 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,307 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,307 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,307 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,307 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,308 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,308 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,308 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,308 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,308 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,309 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,309 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,309 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,309 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,310 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,310 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,310 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,310 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,311 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,311 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,311 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,311 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,312 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,312 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,312 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,312 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,313 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,313 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,313 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,313 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,313 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,314 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,314 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,314 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,314 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,315 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,315 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,319 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,319 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,320 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,320 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,320 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,320 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,320 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,321 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,321 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,321 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,321 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,321 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,321 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,321 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,322 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,323 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,323 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,326 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,326 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,326 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,327 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,327 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,327 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,327 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,327 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,328 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,328 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,328 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,328 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,328 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,329 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,329 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,329 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,333 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,334 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,334 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,334 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,334 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,343 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,343 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,343 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,343 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,343 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,344 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,344 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_minus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,344 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,344 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,344 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,344 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 11:08:36,351 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-24 11:08:36,398 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:08:36,405 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:08:36,405 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 11:08:36,425 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-24 11:08:36,438 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 218 transitions, 452 flow [2021-10-24 11:08:36,441 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 218 transitions, 452 flow [2021-10-24 11:08:36,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 218 transitions, 452 flow [2021-10-24 11:08:36,537 INFO L129 PetriNetUnfolder]: 21/216 cut-off events. [2021-10-24 11:08:36,537 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-24 11:08:36,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 21/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 295 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 139. Up to 3 conditions per place. [2021-10-24 11:08:36,554 INFO L116 LiptonReduction]: Number of co-enabled transitions 4988 [2021-10-24 11:08:53,390 INFO L131 LiptonReduction]: Checked pairs total: 5377 [2021-10-24 11:08:53,390 INFO L133 LiptonReduction]: Total number of compositions: 247 [2021-10-24 11:08:53,400 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 26 transitions, 68 flow [2021-10-24 11:08:53,413 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 60 states, 59 states have (on average 2.406779661016949) internal successors, (142), 59 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:08:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 59 states have (on average 2.406779661016949) internal successors, (142), 59 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:08:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 11:08:53,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:08:53,423 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:08:53,423 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:08:53,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:08:53,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1807494129, now seen corresponding path program 1 times [2021-10-24 11:08:53,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:08:53,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645648398] [2021-10-24 11:08:53,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:08:53,443 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:08:53,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:08:53,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:08:53,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:08:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:08:53,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-24 11:08:53,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:08:54,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:08:54,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:08:56,197 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:08:56,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 352 treesize of output 412 [2021-10-24 11:08:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:08:59,398 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:08:59,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645648398] [2021-10-24 11:08:59,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645648398] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:08:59,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:08:59,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-24 11:08:59,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541063456] [2021-10-24 11:08:59,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 11:08:59,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:08:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 11:08:59,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-24 11:08:59,423 INFO L87 Difference]: Start difference. First operand has 60 states, 59 states have (on average 2.406779661016949) internal successors, (142), 59 states have internal predecessors, (142), 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 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:02,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:09:02,684 INFO L93 Difference]: Finished difference Result 310 states and 671 transitions. [2021-10-24 11:09:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-24 11:09:02,685 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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 15 [2021-10-24 11:09:02,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:09:02,697 INFO L225 Difference]: With dead ends: 310 [2021-10-24 11:09:02,698 INFO L226 Difference]: Without dead ends: 265 [2021-10-24 11:09:02,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2857.7ms TimeCoverageRelationStatistics Valid=208, Invalid=548, Unknown=0, NotChecked=0, Total=756 [2021-10-24 11:09:02,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-24 11:09:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 107. [2021-10-24 11:09:02,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 2.358490566037736) internal successors, (250), 106 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 250 transitions. [2021-10-24 11:09:02,748 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 250 transitions. Word has length 15 [2021-10-24 11:09:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:09:02,749 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 250 transitions. [2021-10-24 11:09:02,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 250 transitions. [2021-10-24 11:09:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 11:09:02,751 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:09:02,752 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:09:02,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-24 11:09:02,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:09:02,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:09:02,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:09:02,970 INFO L82 PathProgramCache]: Analyzing trace with hash -493602573, now seen corresponding path program 1 times [2021-10-24 11:09:02,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:09:02,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984786509] [2021-10-24 11:09:02,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:02,971 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:09:02,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:09:02,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:09:02,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:09:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:03,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-24 11:09:03,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:03,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:05,397 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:09:05,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 338 treesize of output 398 [2021-10-24 11:09:07,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:07,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:09:07,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984786509] [2021-10-24 11:09:07,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984786509] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:07,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1481782121] [2021-10-24 11:09:07,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:07,087 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 11:09:07,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 11:09:07,091 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 11:09:07,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-24 11:09:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:07,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-24 11:09:07,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:08,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:09,421 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:09:09,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 338 treesize of output 398 [2021-10-24 11:09:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:10,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1481782121] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:10,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265527155] [2021-10-24 11:09:10,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:10,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:09:10,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:09:10,888 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:09:10,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-24 11:09:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:11,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-24 11:09:11,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:11,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:11,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:13,002 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:09:13,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 338 treesize of output 398 [2021-10-24 11:09:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:14,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265527155] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:14,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 11:09:14,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 22 [2021-10-24 11:09:14,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123704492] [2021-10-24 11:09:14,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-24 11:09:14,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:09:14,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-24 11:09:14,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-10-24 11:09:14,155 INFO L87 Difference]: Start difference. First operand 107 states and 250 transitions. Second operand has 24 states, 23 states have (on average 2.3043478260869565) internal successors, (53), 23 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:21,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:09:21,182 INFO L93 Difference]: Finished difference Result 642 states and 1520 transitions. [2021-10-24 11:09:21,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-24 11:09:21,182 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.3043478260869565) internal successors, (53), 23 states have internal predecessors, (53), 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 16 [2021-10-24 11:09:21,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:09:21,188 INFO L225 Difference]: With dead ends: 642 [2021-10-24 11:09:21,189 INFO L226 Difference]: Without dead ends: 580 [2021-10-24 11:09:21,190 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 5210.4ms TimeCoverageRelationStatistics Valid=723, Invalid=2247, Unknown=0, NotChecked=0, Total=2970 [2021-10-24 11:09:21,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-10-24 11:09:21,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 182. [2021-10-24 11:09:21,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.3701657458563536) internal successors, (429), 181 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:21,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 429 transitions. [2021-10-24 11:09:21,227 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 429 transitions. Word has length 16 [2021-10-24 11:09:21,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:09:21,227 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 429 transitions. [2021-10-24 11:09:21,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.3043478260869565) internal successors, (53), 23 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 429 transitions. [2021-10-24 11:09:21,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 11:09:21,236 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:09:21,237 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:09:21,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-24 11:09:21,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-10-24 11:09:21,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:21,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:09:21,850 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:09:21,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:09:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash -872664831, now seen corresponding path program 1 times [2021-10-24 11:09:21,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:09:21,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707077626] [2021-10-24 11:09:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:21,852 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:09:21,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:09:21,853 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:09:21,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 11:09:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:22,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-24 11:09:22,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:22,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:24,295 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:09:24,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 338 treesize of output 398 [2021-10-24 11:09:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:25,901 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:09:25,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707077626] [2021-10-24 11:09:25,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707077626] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:25,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [860637193] [2021-10-24 11:09:25,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:25,902 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 11:09:25,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 11:09:25,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 11:09:25,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-24 11:09:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:26,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-24 11:09:26,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:26,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:26,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:28,188 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:09:28,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 338 treesize of output 398 [2021-10-24 11:09:29,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:29,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [860637193] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:29,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301359810] [2021-10-24 11:09:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:29,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:09:29,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:09:29,698 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:09:29,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-24 11:09:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:30,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-24 11:09:30,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:30,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:30,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:31,867 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:09:31,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 338 treesize of output 398 [2021-10-24 11:09:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:32,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301359810] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:32,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 11:09:32,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7, 7, 7, 7] total 23 [2021-10-24 11:09:32,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851088311] [2021-10-24 11:09:32,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-24 11:09:32,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:09:32,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-24 11:09:32,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2021-10-24 11:09:32,812 INFO L87 Difference]: Start difference. First operand 182 states and 429 transitions. Second operand has 25 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:42,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:09:42,714 INFO L93 Difference]: Finished difference Result 725 states and 1634 transitions. [2021-10-24 11:09:42,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-24 11:09:42,715 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 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 16 [2021-10-24 11:09:42,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:09:42,721 INFO L225 Difference]: With dead ends: 725 [2021-10-24 11:09:42,721 INFO L226 Difference]: Without dead ends: 690 [2021-10-24 11:09:42,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 7451.7ms TimeCoverageRelationStatistics Valid=643, Invalid=1907, Unknown=0, NotChecked=0, Total=2550 [2021-10-24 11:09:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2021-10-24 11:09:42,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 183. [2021-10-24 11:09:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 2.368131868131868) internal successors, (431), 182 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 431 transitions. [2021-10-24 11:09:42,756 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 431 transitions. Word has length 16 [2021-10-24 11:09:42,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:09:42,756 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 431 transitions. [2021-10-24 11:09:42,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:42,757 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 431 transitions. [2021-10-24 11:09:42,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 11:09:42,767 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:09:42,767 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:09:42,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:42,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:43,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:43,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:09:43,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:09:43,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:09:43,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1266528975, now seen corresponding path program 2 times [2021-10-24 11:09:43,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:09:43,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504468728] [2021-10-24 11:09:43,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 11:09:43,381 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:09:43,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:09:43,382 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:09:43,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 11:09:43,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-24 11:09:43,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:09:43,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-24 11:09:43,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 11:09:46,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:47,655 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:09:47,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 345 treesize of output 405 [2021-10-24 11:09:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 11:09:49,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:09:49,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504468728] [2021-10-24 11:09:49,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504468728] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:09:49,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:09:49,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-24 11:09:49,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633672366] [2021-10-24 11:09:49,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 11:09:49,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:09:49,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 11:09:49,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2021-10-24 11:09:49,434 INFO L87 Difference]: Start difference. First operand 183 states and 431 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:50,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:09:50,206 INFO L93 Difference]: Finished difference Result 359 states and 816 transitions. [2021-10-24 11:09:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 11:09:50,207 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-24 11:09:50,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:09:50,210 INFO L225 Difference]: With dead ends: 359 [2021-10-24 11:09:50,210 INFO L226 Difference]: Without dead ends: 334 [2021-10-24 11:09:50,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2692.9ms TimeCoverageRelationStatistics Valid=117, Invalid=262, Unknown=1, NotChecked=0, Total=380 [2021-10-24 11:09:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-10-24 11:09:50,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 172. [2021-10-24 11:09:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 2.2982456140350878) internal successors, (393), 171 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 393 transitions. [2021-10-24 11:09:50,227 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 393 transitions. Word has length 17 [2021-10-24 11:09:50,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:09:50,228 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 393 transitions. [2021-10-24 11:09:50,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 393 transitions. [2021-10-24 11:09:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 11:09:50,229 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:09:50,229 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:09:50,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:50,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:09:50,445 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:09:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:09:50,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1645591233, now seen corresponding path program 1 times [2021-10-24 11:09:50,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:09:50,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406420125] [2021-10-24 11:09:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:50,446 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:09:50,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:09:50,448 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:09:50,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 11:09:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:50,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-24 11:09:50,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:51,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:51,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:51,566 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:09:51,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406420125] [2021-10-24 11:09:51,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406420125] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:51,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [920099977] [2021-10-24 11:09:51,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:51,567 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 11:09:51,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 11:09:51,570 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 11:09:51,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-24 11:09:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:52,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-24 11:09:52,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:52,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:52,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:52,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [920099977] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:52,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951559341] [2021-10-24 11:09:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:52,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:09:52,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:09:52,588 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:09:52,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-24 11:09:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:53,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 11:09:53,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:53,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:53,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951559341] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:09:53,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 11:09:53,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 17 [2021-10-24 11:09:53,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756207071] [2021-10-24 11:09:53,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-24 11:09:53,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:09:53,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-24 11:09:53,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-10-24 11:09:53,470 INFO L87 Difference]: Start difference. First operand 172 states and 393 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:55,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:09:55,125 INFO L93 Difference]: Finished difference Result 511 states and 1116 transitions. [2021-10-24 11:09:55,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-24 11:09:55,128 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-24 11:09:55,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:09:55,132 INFO L225 Difference]: With dead ends: 511 [2021-10-24 11:09:55,132 INFO L226 Difference]: Without dead ends: 511 [2021-10-24 11:09:55,132 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 817.9ms TimeCoverageRelationStatistics Valid=198, Invalid=504, Unknown=0, NotChecked=0, Total=702 [2021-10-24 11:09:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2021-10-24 11:09:55,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 183. [2021-10-24 11:09:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 2.2857142857142856) internal successors, (416), 182 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 416 transitions. [2021-10-24 11:09:55,149 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 416 transitions. Word has length 17 [2021-10-24 11:09:55,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:09:55,149 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 416 transitions. [2021-10-24 11:09:55,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:55,150 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 416 transitions. [2021-10-24 11:09:55,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 11:09:55,151 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:09:55,151 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:09:55,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:55,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:55,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:55,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:09:55,755 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:09:55,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:09:55,756 INFO L82 PathProgramCache]: Analyzing trace with hash -44712999, now seen corresponding path program 1 times [2021-10-24 11:09:55,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:09:55,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554022938] [2021-10-24 11:09:55,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:09:55,756 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:09:55,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:09:55,759 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:09:55,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-24 11:09:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:09:56,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 11:09:56,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:56,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:09:56,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:09:56,491 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:09:56,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554022938] [2021-10-24 11:09:56,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554022938] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:09:56,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:09:56,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 11:09:56,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823448497] [2021-10-24 11:09:56,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 11:09:56,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:09:56,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 11:09:56,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-24 11:09:56,493 INFO L87 Difference]: Start difference. First operand 183 states and 416 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:56,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:09:56,773 INFO L93 Difference]: Finished difference Result 211 states and 459 transitions. [2021-10-24 11:09:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 11:09:56,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 18 [2021-10-24 11:09:56,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:09:56,776 INFO L225 Difference]: With dead ends: 211 [2021-10-24 11:09:56,776 INFO L226 Difference]: Without dead ends: 173 [2021-10-24 11:09:56,777 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 54.2ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-24 11:09:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-24 11:09:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-10-24 11:09:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 2.2906976744186047) internal successors, (394), 172 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 394 transitions. [2021-10-24 11:09:56,784 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 394 transitions. Word has length 18 [2021-10-24 11:09:56,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:09:56,784 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 394 transitions. [2021-10-24 11:09:56,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:09:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 394 transitions. [2021-10-24 11:09:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 11:09:56,786 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:09:56,786 INFO L512 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:09:56,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-24 11:09:56,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:09:57,000 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:09:57,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:09:57,000 INFO L82 PathProgramCache]: Analyzing trace with hash 282524265, now seen corresponding path program 3 times [2021-10-24 11:09:57,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:09:57,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168078873] [2021-10-24 11:09:57,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 11:09:57,001 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:09:57,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:09:57,001 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:09:57,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-24 11:09:57,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-24 11:09:57,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:09:57,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-24 11:09:57,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:09:59,916 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-24 11:09:59,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:10:01,474 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:10:01,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 345 treesize of output 405 [2021-10-24 11:10:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-24 11:10:02,893 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:10:02,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168078873] [2021-10-24 11:10:02,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168078873] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:10:02,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:10:02,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-24 11:10:02,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829255779] [2021-10-24 11:10:02,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 11:10:02,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:10:02,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 11:10:02,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2021-10-24 11:10:02,895 INFO L87 Difference]: Start difference. First operand 173 states and 394 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:03,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:10:03,582 INFO L93 Difference]: Finished difference Result 234 states and 510 transitions. [2021-10-24 11:10:03,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 11:10:03,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 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 19 [2021-10-24 11:10:03,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:10:03,586 INFO L225 Difference]: With dead ends: 234 [2021-10-24 11:10:03,586 INFO L226 Difference]: Without dead ends: 225 [2021-10-24 11:10:03,586 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2695.1ms TimeCoverageRelationStatistics Valid=117, Invalid=262, Unknown=1, NotChecked=0, Total=380 [2021-10-24 11:10:03,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-24 11:10:03,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 144. [2021-10-24 11:10:03,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 2.2517482517482517) internal successors, (322), 143 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:03,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 322 transitions. [2021-10-24 11:10:03,592 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 322 transitions. Word has length 19 [2021-10-24 11:10:03,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:10:03,593 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 322 transitions. [2021-10-24 11:10:03,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:03,593 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 322 transitions. [2021-10-24 11:10:03,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 11:10:03,594 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:10:03,594 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:10:03,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-24 11:10:03,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:10:03,809 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:10:03,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:10:03,809 INFO L82 PathProgramCache]: Analyzing trace with hash 289677361, now seen corresponding path program 2 times [2021-10-24 11:10:03,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:10:03,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398795290] [2021-10-24 11:10:03,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 11:10:03,810 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:10:03,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:10:03,811 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:10:03,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-24 11:10:04,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-24 11:10:04,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:10:04,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-24 11:10:04,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:10:05,908 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-10-24 11:10:05,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 246 treesize of output 374 [2021-10-24 11:10:07,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 11:10:07,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:10:08,902 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:10:08,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 352 treesize of output 412 [2021-10-24 11:10:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 11:10:12,185 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:10:12,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398795290] [2021-10-24 11:10:12,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398795290] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:10:12,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:10:12,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-24 11:10:12,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63190973] [2021-10-24 11:10:12,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 11:10:12,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:10:12,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 11:10:12,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-10-24 11:10:12,187 INFO L87 Difference]: Start difference. First operand 144 states and 322 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:18,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:10:18,321 INFO L93 Difference]: Finished difference Result 335 states and 806 transitions. [2021-10-24 11:10:18,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-24 11:10:18,322 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 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 19 [2021-10-24 11:10:18,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:10:18,325 INFO L225 Difference]: With dead ends: 335 [2021-10-24 11:10:18,325 INFO L226 Difference]: Without dead ends: 312 [2021-10-24 11:10:18,325 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 4511.5ms TimeCoverageRelationStatistics Valid=198, Invalid=354, Unknown=0, NotChecked=0, Total=552 [2021-10-24 11:10:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-10-24 11:10:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 148. [2021-10-24 11:10:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 2.2789115646258504) internal successors, (335), 147 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 335 transitions. [2021-10-24 11:10:18,334 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 335 transitions. Word has length 19 [2021-10-24 11:10:18,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:10:18,335 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 335 transitions. [2021-10-24 11:10:18,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:18,335 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 335 transitions. [2021-10-24 11:10:18,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 11:10:18,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:10:18,336 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:10:18,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-24 11:10:18,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:10:18,551 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:10:18,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:10:18,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1663699725, now seen corresponding path program 3 times [2021-10-24 11:10:18,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:10:18,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517475123] [2021-10-24 11:10:18,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-24 11:10:18,552 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:10:18,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:10:18,553 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:10:18,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-24 11:10:19,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-24 11:10:19,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:10:19,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-24 11:10:19,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:10:20,657 INFO L354 Elim1Store]: treesize reduction 156, result has 58.2 percent of original size [2021-10-24 11:10:20,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 246 treesize of output 374 [2021-10-24 11:10:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 11:10:21,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:10:22,646 INFO L354 Elim1Store]: treesize reduction 338, result has 37.3 percent of original size [2021-10-24 11:10:22,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 352 treesize of output 412 [2021-10-24 11:10:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 11:10:26,668 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:10:26,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517475123] [2021-10-24 11:10:26,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517475123] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:10:26,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:10:26,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-24 11:10:26,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847477511] [2021-10-24 11:10:26,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 11:10:26,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:10:26,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 11:10:26,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-10-24 11:10:26,670 INFO L87 Difference]: Start difference. First operand 148 states and 335 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:29,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:10:29,460 INFO L93 Difference]: Finished difference Result 265 states and 637 transitions. [2021-10-24 11:10:29,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 11:10:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 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 19 [2021-10-24 11:10:29,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:10:29,462 INFO L225 Difference]: With dead ends: 265 [2021-10-24 11:10:29,463 INFO L226 Difference]: Without dead ends: 250 [2021-10-24 11:10:29,463 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2180.8ms TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-10-24 11:10:29,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-24 11:10:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 137. [2021-10-24 11:10:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 2.264705882352941) internal successors, (308), 136 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 308 transitions. [2021-10-24 11:10:29,470 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 308 transitions. Word has length 19 [2021-10-24 11:10:29,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:10:29,470 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 308 transitions. [2021-10-24 11:10:29,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:10:29,471 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 308 transitions. [2021-10-24 11:10:29,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 11:10:29,472 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:10:29,472 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:10:29,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-24 11:10:29,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:10:29,686 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:10:29,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:10:29,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1913429159, now seen corresponding path program 1 times [2021-10-24 11:10:29,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:10:29,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567546052] [2021-10-24 11:10:29,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:10:29,688 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:10:29,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:10:29,689 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:10:29,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-24 11:10:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:10:30,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-24 11:10:30,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:10:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:10:31,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:10:40,676 WARN L207 SmtUtils]: Spent 8.37 s on a formula simplification. DAG size of input: 526 DAG size of output: 318 [2021-10-24 11:10:40,679 INFO L354 Elim1Store]: treesize reduction 1208, result has 47.3 percent of original size [2021-10-24 11:10:40,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 404 treesize of output 1173 [2021-10-24 11:11:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:11:30,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:11:30,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567546052] [2021-10-24 11:11:30,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567546052] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:11:30,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1939455523] [2021-10-24 11:11:30,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:11:30,111 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 11:11:30,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 11:11:30,113 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 11:11:30,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-10-24 11:11:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:11:31,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-24 11:11:31,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:11:32,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:11:32,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:11:40,876 WARN L207 SmtUtils]: Spent 8.04 s on a formula simplification. DAG size of input: 526 DAG size of output: 318 [2021-10-24 11:11:40,879 INFO L354 Elim1Store]: treesize reduction 1208, result has 47.3 percent of original size [2021-10-24 11:11:40,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 404 treesize of output 1173 [2021-10-24 11:12:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:12:20,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1939455523] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:12:20,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479250920] [2021-10-24 11:12:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:12:20,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:12:20,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:12:20,543 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:12:20,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-24 11:12:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:12:21,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-24 11:12:21,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:12:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:12:22,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:12:31,907 WARN L207 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 526 DAG size of output: 318 [2021-10-24 11:12:31,911 INFO L354 Elim1Store]: treesize reduction 1208, result has 47.3 percent of original size [2021-10-24 11:12:31,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 404 treesize of output 1173 [2021-10-24 11:12:55,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-24 11:12:55,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479250920] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:12:55,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 11:12:55,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10, 6] total 40 [2021-10-24 11:12:55,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265001541] [2021-10-24 11:12:55,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-24 11:12:55,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:12:55,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-24 11:12:55,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1235, Unknown=0, NotChecked=0, Total=1560 [2021-10-24 11:12:55,762 INFO L87 Difference]: Start difference. First operand 137 states and 308 transitions. Second operand has 40 states, 40 states have (on average 2.175) internal successors, (87), 40 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:13:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:13:12,032 INFO L93 Difference]: Finished difference Result 1101 states and 2317 transitions. [2021-10-24 11:13:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-10-24 11:13:12,033 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.175) internal successors, (87), 40 states have internal predecessors, (87), 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 19 [2021-10-24 11:13:12,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:13:12,040 INFO L225 Difference]: With dead ends: 1101 [2021-10-24 11:13:12,041 INFO L226 Difference]: Without dead ends: 1053 [2021-10-24 11:13:12,045 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4150 ImplicationChecksByTransitivity, 13758.6ms TimeCoverageRelationStatistics Valid=2768, Invalid=10572, Unknown=0, NotChecked=0, Total=13340 [2021-10-24 11:13:12,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2021-10-24 11:13:12,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 209. [2021-10-24 11:13:12,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 2.519230769230769) internal successors, (524), 208 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:13:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 524 transitions. [2021-10-24 11:13:12,079 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 524 transitions. Word has length 19 [2021-10-24 11:13:12,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:13:12,080 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 524 transitions. [2021-10-24 11:13:12,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.175) internal successors, (87), 40 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:13:12,080 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 524 transitions. [2021-10-24 11:13:12,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 11:13:12,081 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:13:12,082 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:13:12,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-24 11:13:12,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-10-24 11:13:12,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-10-24 11:13:12,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:13:12,697 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-24 11:13:12,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:13:12,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1880976935, now seen corresponding path program 2 times [2021-10-24 11:13:12,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:13:12,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986338153] [2021-10-24 11:13:12,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 11:13:12,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:13:12,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:13:12,699 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:13:12,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-24 11:13:13,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 11:13:13,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:13:13,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-24 11:13:13,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 11:13:14,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:13:25,945 WARN L207 SmtUtils]: Spent 8.73 s on a formula simplification. DAG size of input: 526 DAG size of output: 318 [2021-10-24 11:13:25,948 INFO L354 Elim1Store]: treesize reduction 1208, result has 47.3 percent of original size [2021-10-24 11:13:25,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 513 treesize of output 1212 [2021-10-24 11:13:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-24 11:13:55,978 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:13:55,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986338153] [2021-10-24 11:13:55,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986338153] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 11:13:55,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1088637893] [2021-10-24 11:13:55,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 11:13:55,979 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 11:13:55,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 11:13:55,980 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 11:13:55,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-10-24 11:13:57,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 11:13:57,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:13:57,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-24 11:13:57,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:13:57,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,441 INFO L354 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2021-10-24 11:13:57,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 50 [2021-10-24 11:13:57,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:13:57,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2021-10-24 11:14:00,095 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-10-24 11:14:00,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 40 [2021-10-24 11:14:04,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:04,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 89 [2021-10-24 11:14:08,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:08,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:08,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:08,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:08,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:08,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:09,715 INFO L354 Elim1Store]: treesize reduction 1575, result has 5.5 percent of original size [2021-10-24 11:14:09,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 113 treesize of output 145 [2021-10-24 11:14:16,094 WARN L207 SmtUtils]: Spent 6.07 s on a formula simplification that was a NOOP. DAG size: 84 [2021-10-24 11:14:22,829 WARN L207 SmtUtils]: Spent 6.07 s on a formula simplification that was a NOOP. DAG size: 86 [2021-10-24 11:14:22,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:22,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:22,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:22,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:22,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:14:22,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 11:16:36,800 WARN L207 SmtUtils]: Spent 2.23 m on a formula simplification. DAG size of input: 514 DAG size of output: 132 [2021-10-24 11:16:36,801 INFO L354 Elim1Store]: treesize reduction 2570, result has 13.8 percent of original size [2021-10-24 11:16:36,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 13 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 53 case distinctions, treesize of input 151 treesize of output 482 [2021-10-24 11:21:52,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-24 11:21:52,893 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-24 11:21:52,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-24 11:21:52,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637024142] [2021-10-24 11:21:52,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 11:21:52,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:21:52,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:21:52,896 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:21:52,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-24 11:21:54,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 11:21:54,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 11:21:54,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-24 11:21:54,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:21:54,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-24 11:21:54,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-24 11:21:54,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 17 [2021-10-24 11:21:54,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839915271] [2021-10-24 11:21:54,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-24 11:21:54,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:21:54,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-24 11:21:54,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2021-10-24 11:21:54,439 INFO L87 Difference]: Start difference. First operand 209 states and 524 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:21:54,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-24 11:21:54,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-24 11:21:54,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2021-10-24 11:21:55,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 11:21:55,041 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:312) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:432) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:275) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:881) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:778) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 35 more [2021-10-24 11:21:55,043 INFO L168 Benchmark]: Toolchain (without parser) took 800205.26 ms. Allocated memory was 62.9 MB in the beginning and 132.1 MB in the end (delta: 69.2 MB). Free memory was 42.4 MB in the beginning and 59.6 MB in the end (delta: -17.2 MB). Peak memory consumption was 51.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:21:55,043 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:21:55,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.95 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 44.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:21:55,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.47 ms. Allocated memory is still 62.9 MB. Free memory was 44.5 MB in the beginning and 42.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:21:55,044 INFO L168 Benchmark]: Boogie Preprocessor took 67.51 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 40.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:21:55,045 INFO L168 Benchmark]: RCFGBuilder took 842.05 ms. Allocated memory is still 62.9 MB. Free memory was 40.3 MB in the beginning and 40.8 MB in the end (delta: -499.7 kB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:21:55,045 INFO L168 Benchmark]: TraceAbstraction took 798831.40 ms. Allocated memory was 62.9 MB in the beginning and 132.1 MB in the end (delta: 69.2 MB). Free memory was 40.5 MB in the beginning and 59.6 MB in the end (delta: -19.1 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. [2021-10-24 11:21:55,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 384.95 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 44.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.47 ms. Allocated memory is still 62.9 MB. Free memory was 44.5 MB in the beginning and 42.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.51 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 40.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 842.05 ms. Allocated memory is still 62.9 MB. Free memory was 40.3 MB in the beginning and 40.8 MB in the end (delta: -499.7 kB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 798831.40 ms. Allocated memory was 62.9 MB in the beginning and 132.1 MB in the end (delta: 69.2 MB). Free memory was 40.5 MB in the beginning and 59.6 MB in the end (delta: -19.1 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16948.9ms, 204 PlacesBefore, 28 PlacesAfterwards, 218 TransitionsBefore, 26 TransitionsAfterwards, 4988 CoEnabledTransitionPairs, 7 FixpointIterations, 103 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 25 TrivialYvCompositions, 26 ConcurrentYvCompositions, 16 ChoiceCompositions, 247 TotalNumberOfCompositions, 5377 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4388, positive: 4311, positive conditional: 0, positive unconditional: 4311, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3612, positive: 3584, positive conditional: 0, positive unconditional: 3584, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3612, positive: 3584, positive conditional: 0, positive unconditional: 3584, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 940, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 940, negative conditional: 0, negative unconditional: 940, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4388, positive: 727, positive conditional: 0, positive unconditional: 727, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 3612, unknown conditional: 0, unknown unconditional: 3612] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15a8d72c-8b57-45d6-b238-0495feda6686/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:312) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...