./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_add-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH --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 b0bf6ee66b233cfe70507a3d8d55aa219725b8ce14e12bc2fdcf83f18b236eff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:06:37,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:06:37,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:06:37,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:06:37,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:06:37,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:06:37,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:06:37,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:06:37,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:06:37,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:06:37,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:06:37,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:06:37,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:06:37,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:06:37,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:06:37,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:06:37,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:06:37,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:06:37,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:06:37,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:06:37,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:06:37,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:06:37,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:06:37,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:06:37,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:06:37,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:06:37,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:06:37,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:06:37,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:06:37,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:06:37,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:06:37,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:06:37,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:06:37,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:06:37,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:06:37,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:06:37,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:06:37,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:06:37,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:06:37,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:06:37,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:06:37,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:06:37,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:06:37,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:06:37,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:06:37,446 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:06:37,446 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:06:37,446 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:06:37,447 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:06:37,447 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:06:37,447 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:06:37,447 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:06:37,448 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:06:37,449 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:06:37,449 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:06:37,449 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:06:37,449 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:06:37,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:06:37,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:06:37,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:06:37,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:06:37,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:06:37,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:06:37,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:06:37,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:06:37,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:06:37,452 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:06:37,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:06:37,453 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:06:37,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:06:37,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:06:37,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:06:37,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:37,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:06:37,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:06:37,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:06:37,456 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:06:37,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:06:37,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:06:37,457 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:06:37,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:06:37,457 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_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0bf6ee66b233cfe70507a3d8d55aa219725b8ce14e12bc2fdcf83f18b236eff [2021-11-03 04:06:37,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:06:37,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:06:37,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:06:37,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:06:37,750 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:06:37,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_add-2.i [2021-11-03 04:06:37,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data/9d5177c46/22648ed29fcd433584a145b71de121d5/FLAGfe5a565bb [2021-11-03 04:06:38,438 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:06:38,439 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/sv-benchmarks/c/ldv-sets/test_add-2.i [2021-11-03 04:06:38,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data/9d5177c46/22648ed29fcd433584a145b71de121d5/FLAGfe5a565bb [2021-11-03 04:06:38,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data/9d5177c46/22648ed29fcd433584a145b71de121d5 [2021-11-03 04:06:38,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:06:38,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:06:38,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:38,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:06:38,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:06:38,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:38" (1/1) ... [2021-11-03 04:06:38,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f76070a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:38, skipping insertion in model container [2021-11-03 04:06:38,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:38" (1/1) ... [2021-11-03 04:06:38,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:06:38,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:39,150 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_54ddc76d-04c0-4094-a2db-c1b550ede560/sv-benchmarks/c/ldv-sets/test_add-2.i[25793,25806] [2021-11-03 04:06:39,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:39,165 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:06:39,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@309718cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:39, skipping insertion in model container [2021-11-03 04:06:39,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:39,167 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:06:39,170 INFO L168 Benchmark]: Toolchain (without parser) took 461.19 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 52.3 MB in the beginning and 87.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:06:39,171 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:06:39,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.88 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 52.1 MB in the beginning and 87.5 MB in the end (delta: -35.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:06:39,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 457.88 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 52.1 MB in the beginning and 87.5 MB in the end (delta: -35.4 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: 635]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH --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 b0bf6ee66b233cfe70507a3d8d55aa219725b8ce14e12bc2fdcf83f18b236eff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:06:41,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:06:41,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:06:41,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:06:41,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:06:41,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:06:41,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:06:41,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:06:41,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:06:41,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:06:41,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:06:41,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:06:41,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:06:41,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:06:41,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:06:41,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:06:41,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:06:41,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:06:41,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:06:41,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:06:41,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:06:41,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:06:41,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:06:41,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:06:41,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:06:41,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:06:41,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:06:41,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:06:41,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:06:41,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:06:41,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:06:41,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:06:41,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:06:41,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:06:41,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:06:41,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:06:41,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:06:41,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:06:41,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:06:41,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:06:41,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:06:41,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:06:41,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:06:41,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:06:41,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:06:41,550 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:06:41,550 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:06:41,550 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:06:41,551 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:06:41,551 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:06:41,551 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:06:41,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:06:41,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:06:41,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:06:41,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:06:41,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:06:41,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:06:41,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:06:41,555 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:06:41,555 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:06:41,556 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:06:41,556 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:06:41,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:06:41,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:06:41,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:06:41,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:06:41,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:06:41,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:06:41,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:41,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:06:41,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:06:41,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:06:41,558 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:06:41,559 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:06:41,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:06:41,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:06:41,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:06:41,560 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_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0bf6ee66b233cfe70507a3d8d55aa219725b8ce14e12bc2fdcf83f18b236eff [2021-11-03 04:06:41,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:06:41,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:06:41,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:06:41,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:06:41,956 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:06:41,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_add-2.i [2021-11-03 04:06:42,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data/7eb623fcb/6a40dacee6174f12ace9f430af5d2bd1/FLAGc70413ac4 [2021-11-03 04:06:42,629 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:06:42,630 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/sv-benchmarks/c/ldv-sets/test_add-2.i [2021-11-03 04:06:42,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data/7eb623fcb/6a40dacee6174f12ace9f430af5d2bd1/FLAGc70413ac4 [2021-11-03 04:06:42,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/data/7eb623fcb/6a40dacee6174f12ace9f430af5d2bd1 [2021-11-03 04:06:42,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:06:42,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:06:42,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:42,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:06:42,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:06:42,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:42" (1/1) ... [2021-11-03 04:06:42,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3323b874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:42, skipping insertion in model container [2021-11-03 04:06:42,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:06:42" (1/1) ... [2021-11-03 04:06:42,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:06:42,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:43,286 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_54ddc76d-04c0-4094-a2db-c1b550ede560/sv-benchmarks/c/ldv-sets/test_add-2.i[25793,25806] [2021-11-03 04:06:43,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:43,313 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:06:43,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:06:43,392 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_54ddc76d-04c0-4094-a2db-c1b550ede560/sv-benchmarks/c/ldv-sets/test_add-2.i[25793,25806] [2021-11-03 04:06:43,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:43,398 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:06:43,438 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_54ddc76d-04c0-4094-a2db-c1b550ede560/sv-benchmarks/c/ldv-sets/test_add-2.i[25793,25806] [2021-11-03 04:06:43,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:06:43,473 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:06:43,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43 WrapperNode [2021-11-03 04:06:43,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:06:43,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:06:43,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:06:43,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:06:43,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:06:43,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:06:43,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:06:43,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:06:43,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:06:43,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:06:43,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:06:43,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:06:43,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (1/1) ... [2021-11-03 04:06:43,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:06:43,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:06:43,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:06:43,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:06:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:06:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:06:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:06:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:06:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:06:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:06:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:06:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:06:43,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:06:43,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:06:44,310 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:06:44,310 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-11-03 04:06:44,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:44 BoogieIcfgContainer [2021-11-03 04:06:44,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:06:44,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:06:44,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:06:44,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:06:44,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:06:42" (1/3) ... [2021-11-03 04:06:44,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4762a8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:44, skipping insertion in model container [2021-11-03 04:06:44,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:06:43" (2/3) ... [2021-11-03 04:06:44,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4762a8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:06:44, skipping insertion in model container [2021-11-03 04:06:44,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:06:44" (3/3) ... [2021-11-03 04:06:44,320 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-2.i [2021-11-03 04:06:44,326 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:06:44,326 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:06:44,394 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:06:44,400 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:06:44,401 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 04:06:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:44,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 04:06:44,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:44,421 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:44,422 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:06:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1191041087, now seen corresponding path program 1 times [2021-11-03 04:06:44,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:44,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589151038] [2021-11-03 04:06:44,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:44,441 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:44,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:44,445 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:44,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:06:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:44,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:06:44,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:44,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:44,683 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:44,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589151038] [2021-11-03 04:06:44,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1589151038] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:44,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:44,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:06:44,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849193760] [2021-11-03 04:06:44,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:06:44,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:44,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:06:44,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:06:44,711 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:44,730 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2021-11-03 04:06:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:06:44,731 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 04:06:44,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:44,740 INFO L225 Difference]: With dead ends: 45 [2021-11-03 04:06:44,740 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 04:06:44,743 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:06:44,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 04:06:44,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-03 04:06:44,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-11-03 04:06:44,782 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2021-11-03 04:06:44,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:44,783 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-03 04:06:44,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:44,783 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-11-03 04:06:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 04:06:44,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:44,784 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:44,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:44,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:44,997 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:06:44,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:44,998 INFO L85 PathProgramCache]: Analyzing trace with hash -942277654, now seen corresponding path program 1 times [2021-11-03 04:06:44,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:44,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618274393] [2021-11-03 04:06:44,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:45,000 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:45,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:45,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:45,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:06:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:45,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:06:45,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:45,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:45,217 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:45,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618274393] [2021-11-03 04:06:45,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618274393] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:45,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:45,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 04:06:45,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426832206] [2021-11-03 04:06:45,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:06:45,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:45,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:06:45,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:06:45,224 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:45,288 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2021-11-03 04:06:45,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:06:45,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 04:06:45,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:45,295 INFO L225 Difference]: With dead ends: 41 [2021-11-03 04:06:45,295 INFO L226 Difference]: Without dead ends: 32 [2021-11-03 04:06:45,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:06:45,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-03 04:06:45,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-11-03 04:06:45,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-03 04:06:45,306 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-11-03 04:06:45,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:45,312 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-03 04:06:45,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-03 04:06:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 04:06:45,313 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:45,313 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:45,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:45,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:45,526 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:06:45,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:45,526 INFO L85 PathProgramCache]: Analyzing trace with hash 239429152, now seen corresponding path program 1 times [2021-11-03 04:06:45,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:45,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694885270] [2021-11-03 04:06:45,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:45,528 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:45,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:45,529 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:45,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:06:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:45,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 04:06:45,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:45,720 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:06:45,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2021-11-03 04:06:45,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-03 04:06:45,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:45,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:45,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:45,871 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:45,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694885270] [2021-11-03 04:06:45,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694885270] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:45,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:45,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 04:06:45,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538195560] [2021-11-03 04:06:45,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:06:45,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:45,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:06:45,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:06:45,874 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:47,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:47,515 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2021-11-03 04:06:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:06:47,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 04:06:47,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:47,517 INFO L225 Difference]: With dead ends: 44 [2021-11-03 04:06:47,517 INFO L226 Difference]: Without dead ends: 23 [2021-11-03 04:06:47,518 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:06:47,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-03 04:06:47,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2021-11-03 04:06:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:47,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-03 04:06:47,522 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2021-11-03 04:06:47,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:47,522 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-03 04:06:47,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:47,522 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-03 04:06:47,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:06:47,523 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:47,523 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:47,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:47,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:47,735 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:06:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:47,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1232200096, now seen corresponding path program 1 times [2021-11-03 04:06:47,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:47,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839310186] [2021-11-03 04:06:47,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:47,738 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:47,740 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:47,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:06:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:47,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-03 04:06:47,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:47,992 INFO L354 Elim1Store]: treesize reduction 78, result has 28.4 percent of original size [2021-11-03 04:06:47,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2021-11-03 04:06:48,369 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 04:06:48,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-03 04:06:51,494 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-03 04:06:51,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 45 [2021-11-03 04:06:51,831 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-03 04:06:51,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-11-03 04:06:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:51,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:51,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12818 treesize of output 12690 [2021-11-03 04:06:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:55,370 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:55,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839310186] [2021-11-03 04:06:55,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839310186] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:55,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:55,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-03 04:06:55,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82481909] [2021-11-03 04:06:55,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 04:06:55,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:55,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 04:06:55,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:06:55,373 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:56,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:56,505 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-11-03 04:06:56,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-03 04:06:56,506 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:06:56,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:56,507 INFO L225 Difference]: With dead ends: 31 [2021-11-03 04:06:56,507 INFO L226 Difference]: Without dead ends: 26 [2021-11-03 04:06:56,508 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:06:56,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-03 04:06:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-11-03 04:06:56,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-11-03 04:06:56,513 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 16 [2021-11-03 04:06:56,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:56,513 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-11-03 04:06:56,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-11-03 04:06:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:06:56,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:56,514 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:56,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:56,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:56,715 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:06:56,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:56,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1233808810, now seen corresponding path program 1 times [2021-11-03 04:06:56,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:56,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398244012] [2021-11-03 04:06:56,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:56,717 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:56,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:56,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:56,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:06:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:56,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:06:56,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:56,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:06:56,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:06:56,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:06:56,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398244012] [2021-11-03 04:06:56,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398244012] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:06:56,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:06:56,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 04:06:56,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025080738] [2021-11-03 04:06:56,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:06:56,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:06:56,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:06:56,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:06:56,976 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:57,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:06:57,016 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-11-03 04:06:57,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:06:57,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 [2021-11-03 04:06:57,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:06:57,017 INFO L225 Difference]: With dead ends: 24 [2021-11-03 04:06:57,017 INFO L226 Difference]: Without dead ends: 20 [2021-11-03 04:06:57,018 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:06:57,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-03 04:06:57,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-03 04:06:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-03 04:06:57,022 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 16 [2021-11-03 04:06:57,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:06:57,022 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-11-03 04:06:57,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:06:57,022 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-03 04:06:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 04:06:57,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:06:57,023 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:06:57,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:06:57,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:06:57,233 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:06:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:06:57,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1654632530, now seen corresponding path program 1 times [2021-11-03 04:06:57,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:06:57,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927431344] [2021-11-03 04:06:57,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:06:57,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:06:57,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:06:57,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:06:57,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ddc76d-04c0-4094-a2db-c1b550ede560/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:06:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:06:57,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-03 04:06:57,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:06:57,588 INFO L354 Elim1Store]: treesize reduction 78, result has 28.4 percent of original size [2021-11-03 04:06:57,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2021-11-03 04:06:57,931 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 04:06:57,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-03 04:07:01,106 INFO L354 Elim1Store]: treesize reduction 184, result has 15.2 percent of original size [2021-11-03 04:07:01,107 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 4 case distinctions, treesize of input 384 treesize of output 343 [2021-11-03 04:07:01,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:07:01,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 806 [2021-11-03 04:07:02,431 INFO L354 Elim1Store]: treesize reduction 138, result has 15.9 percent of original size [2021-11-03 04:07:02,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 330350 treesize of output 188884 [2021-11-03 04:07:19,391 WARN L207 SmtUtils]: Spent 16.33 s on a formula simplification. DAG size of input: 169 DAG size of output: 78 [2021-11-03 04:07:19,392 INFO L354 Elim1Store]: treesize reduction 803, result has 18.3 percent of original size [2021-11-03 04:07:19,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 191193 treesize of output 117679 [2021-11-03 04:07:25,546 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification. DAG size of input: 267 DAG size of output: 127 [2021-11-03 04:07:25,546 INFO L354 Elim1Store]: treesize reduction 852, result has 25.6 percent of original size [2021-11-03 04:07:25,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 134124 treesize of output 75094 [2021-11-03 04:07:29,207 INFO L354 Elim1Store]: treesize reduction 172, result has 30.1 percent of original size [2021-11-03 04:07:29,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 75147 treesize of output 63955 [2021-11-03 04:07:29,680 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 04:07:32,824 INFO L354 Elim1Store]: treesize reduction 172, result has 30.1 percent of original size [2021-11-03 04:07:32,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 63985 treesize of output 62649 [2021-11-03 04:07:36,310 INFO L354 Elim1Store]: treesize reduction 204, result has 27.7 percent of original size [2021-11-03 04:07:36,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 62661 treesize of output 59917 [2021-11-03 04:07:40,493 INFO L354 Elim1Store]: treesize reduction 204, result has 27.7 percent of original size [2021-11-03 04:07:40,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 59920 treesize of output 54360 [2021-11-03 04:07:41,065 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:07:41,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54381 treesize of output 54077 [2021-11-03 04:07:41,592 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:07:41,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54357 treesize of output 54055 [2021-11-03 04:07:42,018 INFO L883 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 04:07:42,075 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:07:42,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54333 treesize of output 54033 [2021-11-03 04:07:42,610 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 04:07:42,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54309 treesize of output 54011 [2021-11-03 04:07:46,534 INFO L354 Elim1Store]: treesize reduction 206, result has 24.8 percent of original size [2021-11-03 04:07:46,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 53996 treesize of output 52398 [2021-11-03 04:07:47,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52377 treesize of output 52332 [2021-11-03 04:07:50,113 INFO L354 Elim1Store]: treesize reduction 272, result has 24.7 percent of original size [2021-11-03 04:07:50,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 27 case distinctions, treesize of input 52686 treesize of output 52126 [2021-11-03 04:07:50,549 INFO L883 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 04:07:52,428 INFO L354 Elim1Store]: treesize reduction 344, result has 22.0 percent of original size [2021-11-03 04:07:52,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 52295 treesize of output 50325 [2021-11-03 04:07:54,217 INFO L354 Elim1Store]: treesize reduction 241, result has 28.9 percent of original size [2021-11-03 04:07:54,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 50319 treesize of output 49888 [2021-11-03 04:07:54,956 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:07:54,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49885 treesize of output 49882 [2021-11-03 04:07:57,497 INFO L354 Elim1Store]: treesize reduction 326, result has 26.1 percent of original size [2021-11-03 04:07:57,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 49870 treesize of output 48942 [2021-11-03 04:07:58,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:07:58,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48937 [2021-11-03 04:07:59,751 INFO L354 Elim1Store]: treesize reduction 140, result has 20.5 percent of original size [2021-11-03 04:07:59,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 48937 treesize of output 48925 [2021-11-03 04:07:59,966 INFO L883 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 04:08:02,298 INFO L354 Elim1Store]: treesize reduction 249, result has 26.5 percent of original size [2021-11-03 04:08:02,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 48906 treesize of output 44883 [2021-11-03 04:08:10,636 INFO L244 Elim1Store]: Index analysis took 129 ms [2021-11-03 04:08:11,664 INFO L354 Elim1Store]: treesize reduction 14, result has 76.3 percent of original size [2021-11-03 04:08:11,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 76 [2021-11-03 04:08:16,497 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:08:16,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2021-11-03 04:08:20,698 INFO L244 Elim1Store]: Index analysis took 120 ms [2021-11-03 04:08:21,668 INFO L354 Elim1Store]: treesize reduction 14, result has 76.3 percent of original size [2021-11-03 04:08:21,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 76 [2021-11-03 04:08:26,769 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:08:26,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 41 [2021-11-03 04:08:30,698 INFO L244 Elim1Store]: Index analysis took 236 ms [2021-11-03 04:08:31,578 INFO L354 Elim1Store]: treesize reduction 68, result has 39.8 percent of original size [2021-11-03 04:08:31,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 55 treesize of output 79 [2021-11-03 04:08:36,564 INFO L244 Elim1Store]: Index analysis took 214 ms [2021-11-03 04:08:36,966 INFO L354 Elim1Store]: treesize reduction 38, result has 35.6 percent of original size [2021-11-03 04:08:36,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 38 treesize of output 44 [2021-11-03 04:08:42,320 INFO L244 Elim1Store]: Index analysis took 157 ms [2021-11-03 04:08:43,436 INFO L354 Elim1Store]: treesize reduction 20, result has 69.2 percent of original size [2021-11-03 04:08:43,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 76 [2021-11-03 04:08:48,915 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-03 04:08:48,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2021-11-03 04:08:52,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-03 04:08:53,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:08:53,823 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:08:53,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 41 [2021-11-03 04:08:56,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-03 04:08:57,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:08:57,868 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:08:57,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 41 [2021-11-03 04:09:01,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:09:01,975 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:09:01,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-03 04:09:04,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:09:04,640 INFO L244 Elim1Store]: Index analysis took 159 ms [2021-11-03 04:09:05,237 INFO L354 Elim1Store]: treesize reduction 12, result has 75.5 percent of original size [2021-11-03 04:09:05,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 68 [2021-11-03 04:09:10,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:09:10,160 INFO L244 Elim1Store]: Index analysis took 350 ms [2021-11-03 04:09:11,474 INFO L354 Elim1Store]: treesize reduction 46, result has 55.3 percent of original size [2021-11-03 04:09:11,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 55 treesize of output 91 [2021-11-03 04:09:17,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:09:17,502 INFO L244 Elim1Store]: Index analysis took 112 ms [2021-11-03 04:09:17,902 INFO L354 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2021-11-03 04:09:17,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 42 [2021-11-03 04:09:21,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:09:21,741 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:09:21,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2021-11-03 04:09:24,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:09:24,269 INFO L244 Elim1Store]: Index analysis took 127 ms [2021-11-03 04:09:24,915 INFO L354 Elim1Store]: treesize reduction 12, result has 75.5 percent of original size [2021-11-03 04:09:24,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 68 [2021-11-03 04:09:31,081 INFO L244 Elim1Store]: Index analysis took 349 ms [2021-11-03 04:09:32,281 INFO L354 Elim1Store]: treesize reduction 82, result has 52.6 percent of original size [2021-11-03 04:09:32,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 62 treesize of output 128 [2021-11-03 04:09:41,672 INFO L244 Elim1Store]: Index analysis took 344 ms [2021-11-03 04:09:43,405 INFO L354 Elim1Store]: treesize reduction 56, result has 46.7 percent of original size [2021-11-03 04:09:43,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 45 treesize of output 75 [2021-11-03 04:09:50,158 INFO L244 Elim1Store]: Index analysis took 505 ms [2021-11-03 04:09:51,433 INFO L354 Elim1Store]: treesize reduction 34, result has 67.6 percent of original size [2021-11-03 04:09:51,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 53 treesize of output 105 [2021-11-03 04:09:58,660 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-11-03 04:09:59,771 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-03 04:09:59,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 56 [2021-11-03 04:10:07,268 INFO L244 Elim1Store]: Index analysis took 485 ms [2021-11-03 04:10:08,769 INFO L354 Elim1Store]: treesize reduction 38, result has 63.8 percent of original size [2021-11-03 04:10:08,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 53 treesize of output 101 [2021-11-03 04:10:15,692 INFO L244 Elim1Store]: Index analysis took 224 ms [2021-11-03 04:10:16,499 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-03 04:10:16,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 36 treesize of output 56 [2021-11-03 04:10:30,154 INFO L244 Elim1Store]: Index analysis took 835 ms [2021-11-03 04:10:33,146 INFO L354 Elim1Store]: treesize reduction 84, result has 51.4 percent of original size [2021-11-03 04:10:33,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 82 treesize of output 146 [2021-11-03 04:10:35,699 INFO L244 Elim1Store]: Index analysis took 664 ms [2021-11-03 04:10:38,476 INFO L354 Elim1Store]: treesize reduction 68, result has 60.7 percent of original size [2021-11-03 04:10:38,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 84 treesize of output 164 [2021-11-03 04:10:45,152 INFO L354 Elim1Store]: treesize reduction 26, result has 61.2 percent of original size [2021-11-03 04:10:45,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 88 [2021-11-03 04:10:46,174 INFO L244 Elim1Store]: Index analysis took 199 ms [2021-11-03 04:10:49,391 INFO L354 Elim1Store]: treesize reduction 56, result has 67.6 percent of original size [2021-11-03 04:10:49,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 84 treesize of output 176 [2021-11-03 04:10:59,103 INFO L354 Elim1Store]: treesize reduction 24, result has 60.7 percent of original size [2021-11-03 04:10:59,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 80