./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/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_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/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_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:34:11,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:34:11,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:34:11,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:34:11,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:34:11,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:34:11,324 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:34:11,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:34:11,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:34:11,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:34:11,326 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:34:11,326 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:34:11,327 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:34:11,330 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:34:11,330 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:34:11,331 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:34:11,331 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:34:11,331 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:34:11,332 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:34:11,332 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:34:11,332 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:34:11,333 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:34:11,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:34:11,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:34:11,338 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:34:11,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:34:11,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:34:11,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:34:11,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:34:11,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:34:11,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:34:11,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:34:11,340 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:34:11,341 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:34:11,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:34:11,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:34:11,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:34:11,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:34:11,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:34:11,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:34:11,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:34:11,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:34:11,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:34:11,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:34:11,346 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:34:11,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:34:11,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:34:11,347 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:34:11,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:34:11,347 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_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2024-11-09 04:34:11,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:34:11,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:34:11,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:34:11,620 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:34:11,620 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:34:11,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c Unable to find full path for "g++" [2024-11-09 04:34:13,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:34:13,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:34:13,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2024-11-09 04:34:13,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/data/8b4055c8e/f20bc7c660124e1dae3f91422e7c1895/FLAGd3d0b2ecb [2024-11-09 04:34:13,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/data/8b4055c8e/f20bc7c660124e1dae3f91422e7c1895 [2024-11-09 04:34:13,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:34:13,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:34:13,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:34:13,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:34:13,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:34:13,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:34:13" (1/1) ... [2024-11-09 04:34:13,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86fb2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:13, skipping insertion in model container [2024-11-09 04:34:13,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:34:13" (1/1) ... [2024-11-09 04:34:13,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:34:14,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:34:14,276 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:34:14,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:34:14,345 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:34:14,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14 WrapperNode [2024-11-09 04:34:14,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:34:14,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:34:14,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:34:14,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:34:14,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,425 INFO L138 Inliner]: procedures = 25, calls = 74, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 487 [2024-11-09 04:34:14,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:34:14,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:34:14,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:34:14,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:34:14,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,467 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:34:14,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:34:14,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:34:14,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:34:14,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (1/1) ... [2024-11-09 04:34:14,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:34:14,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:34:14,519 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:34:14,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:34:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:34:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 04:34:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 04:34:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 04:34:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 04:34:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 04:34:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 04:34:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-09 04:34:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-09 04:34:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:34:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:34:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 04:34:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 04:34:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:34:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:34:14,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:34:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:34:14,563 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 04:34:14,707 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:34:14,709 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:34:15,591 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 04:34:15,592 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:34:16,278 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:34:16,279 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 04:34:16,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:34:16 BoogieIcfgContainer [2024-11-09 04:34:16,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:34:16,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:34:16,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:34:16,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:34:16,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:34:13" (1/3) ... [2024-11-09 04:34:16,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398194fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:34:16, skipping insertion in model container [2024-11-09 04:34:16,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:34:14" (2/3) ... [2024-11-09 04:34:16,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398194fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:34:16, skipping insertion in model container [2024-11-09 04:34:16,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:34:16" (3/3) ... [2024-11-09 04:34:16,288 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2024-11-09 04:34:16,308 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:34:16,308 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-11-09 04:34:16,308 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 04:34:16,416 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 04:34:16,457 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 134 transitions, 296 flow [2024-11-09 04:34:21,703 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107428 states, 105796 states have (on average 5.496521607622216) internal successors, (581510), 107427 states have internal predecessors, (581510), 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 04:34:21,746 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:34:21,755 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;@744698e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:34:21,756 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-09 04:34:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 107428 states, 105796 states have (on average 5.496521607622216) internal successors, (581510), 107427 states have internal predecessors, (581510), 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 04:34:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:34:21,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:21,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:34:21,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-09 04:34:21,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash 44633682, now seen corresponding path program 1 times [2024-11-09 04:34:21,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:21,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613428572] [2024-11-09 04:34:21,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:21,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:22,385 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 04:34:22,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:22,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613428572] [2024-11-09 04:34:22,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613428572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:22,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:22,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:34:22,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435037414] [2024-11-09 04:34:22,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:22,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:34:22,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:22,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:34:22,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:34:22,653 INFO L87 Difference]: Start difference. First operand has 107428 states, 105796 states have (on average 5.496521607622216) internal successors, (581510), 107427 states have internal predecessors, (581510), 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 04:34:27,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:27,360 INFO L93 Difference]: Finished difference Result 134004 states and 733732 transitions. [2024-11-09 04:34:27,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:34:27,363 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 04:34:27,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:28,809 INFO L225 Difference]: With dead ends: 134004 [2024-11-09 04:34:28,810 INFO L226 Difference]: Without dead ends: 49998 [2024-11-09 04:34:28,980 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 04:34:28,985 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 23 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:28,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 92 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:34:29,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49998 states. [2024-11-09 04:34:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49998 to 49994. [2024-11-09 04:34:32,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49994 states, 49798 states have (on average 5.289770673521025) internal successors, (263420), 49993 states have internal predecessors, (263420), 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 04:34:32,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49994 states to 49994 states and 263420 transitions. [2024-11-09 04:34:32,896 INFO L78 Accepts]: Start accepts. Automaton has 49994 states and 263420 transitions. Word has length 4 [2024-11-09 04:34:32,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:32,897 INFO L471 AbstractCegarLoop]: Abstraction has 49994 states and 263420 transitions. [2024-11-09 04:34:32,897 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 04:34:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 49994 states and 263420 transitions. [2024-11-09 04:34:32,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 04:34:32,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:32,898 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-09 04:34:32,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:34:32,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-09 04:34:32,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:32,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1386753903, now seen corresponding path program 1 times [2024-11-09 04:34:32,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:32,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700270559] [2024-11-09 04:34:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:33,040 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 04:34:33,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:33,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700270559] [2024-11-09 04:34:33,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700270559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:34:33,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742169378] [2024-11-09 04:34:33,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:33,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:34:33,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:34:33,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:34:33,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:34:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:33,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:34:33,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:34:33,258 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 04:34:33,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:34:33,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742169378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:33,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:34:33,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 04:34:33,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643514092] [2024-11-09 04:34:33,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:33,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:34:33,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:33,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:34:33,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:34:33,267 INFO L87 Difference]: Start difference. First operand 49994 states and 263420 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 04:34:35,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:35,109 INFO L93 Difference]: Finished difference Result 49998 states and 263424 transitions. [2024-11-09 04:34:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:34:35,110 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 04:34:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:35,649 INFO L225 Difference]: With dead ends: 49998 [2024-11-09 04:34:35,650 INFO L226 Difference]: Without dead ends: 49994 [2024-11-09 04:34:36,227 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 04:34:36,228 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 61 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:36,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 72 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:34:36,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49994 states. [2024-11-09 04:34:38,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49994 to 49990. [2024-11-09 04:34:38,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49990 states, 49798 states have (on average 5.289690349010001) internal successors, (263416), 49989 states have internal predecessors, (263416), 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 04:34:38,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49990 states to 49990 states and 263416 transitions. [2024-11-09 04:34:38,889 INFO L78 Accepts]: Start accepts. Automaton has 49990 states and 263416 transitions. Word has length 8 [2024-11-09 04:34:38,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:38,890 INFO L471 AbstractCegarLoop]: Abstraction has 49990 states and 263416 transitions. [2024-11-09 04:34:38,890 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 04:34:38,891 INFO L276 IsEmpty]: Start isEmpty. Operand 49990 states and 263416 transitions. [2024-11-09 04:34:38,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:34:38,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:38,891 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-09 04:34:38,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 04:34:39,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:34:39,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-09 04:34:39,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:39,097 INFO L85 PathProgramCache]: Analyzing trace with hash 39699502, now seen corresponding path program 1 times [2024-11-09 04:34:39,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:39,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882334136] [2024-11-09 04:34:39,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:39,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:39,200 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 04:34:39,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:39,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882334136] [2024-11-09 04:34:39,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882334136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:34:39,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793127145] [2024-11-09 04:34:39,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:39,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:34:39,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:34:39,203 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:34:39,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:34:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:39,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:34:39,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:34:39,348 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 04:34:39,349 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:34:40,100 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 04:34:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793127145] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:34:40,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1085825239] [2024-11-09 04:34:40,132 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 04:34:40,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:34:40,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-09 04:34:40,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581397361] [2024-11-09 04:34:40,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:34:40,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 04:34:40,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:40,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 04:34:40,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:34:40,142 INFO L87 Difference]: Start difference. First operand 49990 states and 263416 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 04:34:41,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:41,800 INFO L93 Difference]: Finished difference Result 50058 states and 263516 transitions. [2024-11-09 04:34:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:34:41,800 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 04:34:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:42,440 INFO L225 Difference]: With dead ends: 50058 [2024-11-09 04:34:42,441 INFO L226 Difference]: Without dead ends: 50054 [2024-11-09 04:34:42,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:34:42,477 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 167 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:42,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 132 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 04:34:42,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50054 states. [2024-11-09 04:34:44,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50054 to 50038. [2024-11-09 04:34:45,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50038 states, 49846 states have (on average 5.286041006299402) internal successors, (263488), 50037 states have internal predecessors, (263488), 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 04:34:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50038 states to 50038 states and 263488 transitions. [2024-11-09 04:34:45,459 INFO L78 Accepts]: Start accepts. Automaton has 50038 states and 263488 transitions. Word has length 9 [2024-11-09 04:34:45,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:45,460 INFO L471 AbstractCegarLoop]: Abstraction has 50038 states and 263488 transitions. [2024-11-09 04:34:45,460 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 04:34:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 50038 states and 263488 transitions. [2024-11-09 04:34:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 04:34:45,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:45,461 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:45,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:34:45,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1f3a64-05e8-4ded-b9a9-4c3306f497a9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:34:45,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-09 04:34:45,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:45,664 INFO L85 PathProgramCache]: Analyzing trace with hash -331390047, now seen corresponding path program 1 times [2024-11-09 04:34:45,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:45,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6529651] [2024-11-09 04:34:45,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:45,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:45,841 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 04:34:45,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:45,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6529651] [2024-11-09 04:34:45,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6529651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:45,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:45,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:34:45,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154959248] [2024-11-09 04:34:45,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:45,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:34:45,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:45,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:34:45,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:34:45,848 INFO L87 Difference]: Start difference. First operand 50038 states and 263488 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:49,460 INFO L93 Difference]: Finished difference Result 143224 states and 763326 transitions. [2024-11-09 04:34:49,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:34:49,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 04:34:49,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:34:51,295 INFO L225 Difference]: With dead ends: 143224 [2024-11-09 04:34:51,299 INFO L226 Difference]: Without dead ends: 93228 [2024-11-09 04:34:51,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:34:51,498 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 86 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:34:51,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 68 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:34:51,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93228 states. [2024-11-09 04:34:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93228 to 81064. [2024-11-09 04:34:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81064 states, 80794 states have (on average 5.381513478723668) internal successors, (434794), 81063 states have internal predecessors, (434794), 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 04:34:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81064 states to 81064 states and 434794 transitions. [2024-11-09 04:34:55,567 INFO L78 Accepts]: Start accepts. Automaton has 81064 states and 434794 transitions. Word has length 14 [2024-11-09 04:34:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:34:55,568 INFO L471 AbstractCegarLoop]: Abstraction has 81064 states and 434794 transitions. [2024-11-09 04:34:55,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:34:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 81064 states and 434794 transitions. [2024-11-09 04:34:55,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 04:34:55,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:55,570 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:55,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:34:55,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-09 04:34:55,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:55,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1683154302, now seen corresponding path program 1 times [2024-11-09 04:34:55,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:55,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658213369] [2024-11-09 04:34:55,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:55,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:34:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:34:55,655 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 04:34:55,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:34:55,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658213369] [2024-11-09 04:34:55,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658213369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:34:55,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:34:55,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:34:55,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470474447] [2024-11-09 04:34:55,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:34:55,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:34:55,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:34:55,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:34:55,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:34:55,658 INFO L87 Difference]: Start difference. First operand 81064 states and 434794 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2024-11-09 04:34:59,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:34:59,585 INFO L93 Difference]: Finished difference Result 152008 states and 807494 transitions. [2024-11-09 04:34:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:34:59,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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 15 [2024-11-09 04:34:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:35:01,179 INFO L225 Difference]: With dead ends: 152008 [2024-11-09 04:35:01,179 INFO L226 Difference]: Without dead ends: 70986 [2024-11-09 04:35:01,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:35:01,275 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 74 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:35:01,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 55 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:35:01,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70986 states. [2024-11-09 04:35:03,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70986 to 65482. [2024-11-09 04:35:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65482 states, 65264 states have (on average 5.2606950232900225) internal successors, (343334), 65481 states have internal predecessors, (343334), 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)