./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:45:51,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:45:51,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:45:51,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:45:51,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:45:51,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:45:51,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:45:51,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:45:51,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:45:51,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:45:51,664 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:45:51,664 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:45:51,665 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:45:51,665 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:45:51,666 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:45:51,666 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:45:51,667 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:45:51,667 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:45:51,668 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:45:51,668 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:45:51,669 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:45:51,669 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:45:51,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:45:51,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:45:51,671 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:45:51,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:45:51,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:45:51,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:45:51,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:45:51,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:45:51,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:45:51,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:45:51,674 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:45:51,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:45:51,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:45:51,676 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:45:51,676 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:45:51,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:45:51,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:45:51,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:45:51,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:45:51,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:45:51,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:45:51,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:45:51,679 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:45:51,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:45:51,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:45:51,680 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:45:51,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:45:51,681 INFO L153 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_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 [2024-11-09 06:45:51,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:45:52,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:45:52,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:45:52,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:45:52,046 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:45:52,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c Unable to find full path for "g++" [2024-11-09 06:45:54,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:45:54,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:45:54,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2024-11-09 06:45:54,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/data/2b1c20bf7/38cc89505c3541ca851f08e8afbb5be1/FLAGf0517397c [2024-11-09 06:45:54,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/data/2b1c20bf7/38cc89505c3541ca851f08e8afbb5be1 [2024-11-09 06:45:54,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:45:54,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:45:54,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:45:54,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:45:54,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:45:54,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:45:54" (1/1) ... [2024-11-09 06:45:54,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4814e2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:54, skipping insertion in model container [2024-11-09 06:45:54,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:45:54" (1/1) ... [2024-11-09 06:45:54,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:45:55,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:45:55,191 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:45:55,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:45:55,249 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:45:55,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55 WrapperNode [2024-11-09 06:45:55,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:45:55,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:45:55,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:45:55,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:45:55,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,321 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 17, calls inlined = 29, statements flattened = 355 [2024-11-09 06:45:55,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:45:55,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:45:55,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:45:55,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:45:55,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:45:55,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:45:55,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:45:55,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:45:55,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (1/1) ... [2024-11-09 06:45:55,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:45:55,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:55,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:45:55,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:45:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:45:55,495 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 06:45:55,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 06:45:55,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 06:45:55,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 06:45:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 06:45:55,499 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 06:45:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:45:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:45:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:45:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:45:55,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:45:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:45:55,502 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:45:55,699 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:45:55,703 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:45:56,628 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:45:56,629 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:45:57,132 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:45:57,133 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:45:57,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:57 BoogieIcfgContainer [2024-11-09 06:45:57,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:45:57,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:45:57,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:45:57,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:45:57,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:45:54" (1/3) ... [2024-11-09 06:45:57,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182565ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:45:57, skipping insertion in model container [2024-11-09 06:45:57,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:55" (2/3) ... [2024-11-09 06:45:57,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182565ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:45:57, skipping insertion in model container [2024-11-09 06:45:57,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:57" (3/3) ... [2024-11-09 06:45:57,145 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2024-11-09 06:45:57,168 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:45:57,169 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-11-09 06:45:57,169 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:45:57,348 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 06:45:57,401 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 162 places, 174 transitions, 369 flow [2024-11-09 06:46:03,604 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 157112 states, 153734 states have (on average 3.9158026201100604) internal successors, (601992), 157111 states have internal predecessors, (601992), 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) [2024-11-09 06:46:03,653 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:46:03,660 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4551e095, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:46:03,661 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-11-09 06:46:03,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 157112 states, 153734 states have (on average 3.9158026201100604) internal successors, (601992), 157111 states have internal predecessors, (601992), 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) [2024-11-09 06:46:03,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:46:03,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:03,864 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:46:03,865 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-09 06:46:03,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:03,871 INFO L85 PathProgramCache]: Analyzing trace with hash 34404219, now seen corresponding path program 1 times [2024-11-09 06:46:03,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:03,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575200534] [2024-11-09 06:46:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:03,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:46:04,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:04,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575200534] [2024-11-09 06:46:04,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575200534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:46:04,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:46:04,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:46:04,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203648844] [2024-11-09 06:46:04,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:46:04,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:46:04,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:46:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:46:04,510 INFO L87 Difference]: Start difference. First operand has 157112 states, 153734 states have (on average 3.9158026201100604) internal successors, (601992), 157111 states have internal predecessors, (601992), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 06:46:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:09,438 INFO L93 Difference]: Finished difference Result 157126 states and 602010 transitions. [2024-11-09 06:46:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:46:09,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-09 06:46:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:11,811 INFO L225 Difference]: With dead ends: 157126 [2024-11-09 06:46:11,811 INFO L226 Difference]: Without dead ends: 157122 [2024-11-09 06:46:11,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:46:11,877 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 11 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:11,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 304 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:46:12,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157122 states. [2024-11-09 06:46:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157122 to 157120. [2024-11-09 06:46:20,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157120 states, 153742 states have (on average 3.9156769132702838) internal successors, (602004), 157119 states have internal predecessors, (602004), 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) [2024-11-09 06:46:22,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157120 states to 157120 states and 602004 transitions. [2024-11-09 06:46:22,973 INFO L78 Accepts]: Start accepts. Automaton has 157120 states and 602004 transitions. Word has length 4 [2024-11-09 06:46:22,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:22,975 INFO L471 AbstractCegarLoop]: Abstraction has 157120 states and 602004 transitions. [2024-11-09 06:46:22,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 06:46:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 157120 states and 602004 transitions. [2024-11-09 06:46:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:46:22,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:22,978 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-09 06:46:22,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:46:22,979 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-09 06:46:22,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1115303773, now seen corresponding path program 1 times [2024-11-09 06:46:22,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:22,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522042506] [2024-11-09 06:46:22,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:22,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:46:23,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:23,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522042506] [2024-11-09 06:46:23,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522042506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:23,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314536792] [2024-11-09 06:46:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:23,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:23,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:23,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:23,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:46:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:23,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:46:23,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:23,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:46:23,552 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:46:23,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314536792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:46:23,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:46:23,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 06:46:23,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610101673] [2024-11-09 06:46:23,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:46:23,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:46:23,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:23,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:46:23,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:46:23,561 INFO L87 Difference]: Start difference. First operand 157120 states and 602004 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:46:26,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:26,627 INFO L93 Difference]: Finished difference Result 157122 states and 602006 transitions. [2024-11-09 06:46:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:46:26,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:46:26,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:29,119 INFO L225 Difference]: With dead ends: 157122 [2024-11-09 06:46:29,120 INFO L226 Difference]: Without dead ends: 157120 [2024-11-09 06:46:29,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:46:29,176 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 25 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:29,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 490 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:46:29,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157120 states. [2024-11-09 06:46:35,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157120 to 157118. [2024-11-09 06:46:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157118 states, 153742 states have (on average 3.9156639044633215) internal successors, (602002), 157117 states have internal predecessors, (602002), 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) [2024-11-09 06:46:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157118 states to 157118 states and 602002 transitions. [2024-11-09 06:46:37,406 INFO L78 Accepts]: Start accepts. Automaton has 157118 states and 602002 transitions. Word has length 8 [2024-11-09 06:46:37,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:37,407 INFO L471 AbstractCegarLoop]: Abstraction has 157118 states and 602002 transitions. [2024-11-09 06:46:37,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:46:37,407 INFO L276 IsEmpty]: Start isEmpty. Operand 157118 states and 602002 transitions. [2024-11-09 06:46:37,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:46:37,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:37,408 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-09 06:46:37,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:46:37,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:37,610 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-09 06:46:37,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:37,611 INFO L85 PathProgramCache]: Analyzing trace with hash -214677494, now seen corresponding path program 1 times [2024-11-09 06:46:37,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:37,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679296068] [2024-11-09 06:46:37,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:37,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:46:37,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:37,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679296068] [2024-11-09 06:46:37,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679296068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:37,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454305050] [2024-11-09 06:46:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:37,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:37,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:37,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:37,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:46:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:37,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:46:37,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:46:37,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:38,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:46:38,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454305050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:46:38,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [29434856] [2024-11-09 06:46:38,072 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:259) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:46:38,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:46:38,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 06:46:38,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332771029] [2024-11-09 06:46:38,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:46:38,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:46:38,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:38,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:46:38,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:46:38,078 INFO L87 Difference]: Start difference. First operand 157118 states and 602002 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 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) [2024-11-09 06:46:40,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:40,936 INFO L93 Difference]: Finished difference Result 157152 states and 602052 transitions. [2024-11-09 06:46:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:46:40,937 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:46:40,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:42,197 INFO L225 Difference]: With dead ends: 157152 [2024-11-09 06:46:42,197 INFO L226 Difference]: Without dead ends: 157150 [2024-11-09 06:46:42,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:46:42,247 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 95 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:42,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:46:43,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157150 states. [2024-11-09 06:46:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157150 to 157142. [2024-11-09 06:46:48,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157142 states, 153766 states have (on average 3.9152868644563816) internal successors, (602038), 157141 states have internal predecessors, (602038), 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) [2024-11-09 06:46:50,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157142 states to 157142 states and 602038 transitions. [2024-11-09 06:46:50,431 INFO L78 Accepts]: Start accepts. Automaton has 157142 states and 602038 transitions. Word has length 9 [2024-11-09 06:46:50,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:50,431 INFO L471 AbstractCegarLoop]: Abstraction has 157142 states and 602038 transitions. [2024-11-09 06:46:50,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 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) [2024-11-09 06:46:50,432 INFO L276 IsEmpty]: Start isEmpty. Operand 157142 states and 602038 transitions. [2024-11-09 06:46:50,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:46:50,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:50,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:50,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:46:50,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2587ea4d-d1c5-495f-ab2d-c097f3ea0574/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:50,633 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2024-11-09 06:46:50,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:50,634 INFO L85 PathProgramCache]: Analyzing trace with hash -834123264, now seen corresponding path program 1 times [2024-11-09 06:46:50,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:50,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765461666] [2024-11-09 06:46:50,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:50,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:46:50,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:50,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765461666] [2024-11-09 06:46:50,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765461666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:46:50,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:46:50,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:46:50,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823018206] [2024-11-09 06:46:50,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:46:50,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:46:50,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:50,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:46:50,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:46:50,779 INFO L87 Difference]: Start difference. First operand 157142 states and 602038 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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)