./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a 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_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2 --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 a42fdc99fbc54512a7829bd297e0f02fe251a511098f304812399f6e9de1d8b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:22:14,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:22:14,557 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 11:22:14,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:22:14,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:22:14,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:22:14,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:22:14,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:22:14,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:22:14,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:22:14,605 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:22:14,606 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:22:14,606 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:22:14,606 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:22:14,607 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:22:14,607 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:22:14,608 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:22:14,608 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:22:14,609 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:22:14,609 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:22:14,610 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:22:14,610 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:22:14,611 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:22:14,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:22:14,612 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:22:14,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:22:14,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:22:14,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:22:14,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:22:14,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:22:14,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:22:14,615 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:22:14,616 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 11:22:14,616 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:22:14,616 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:22:14,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:22:14,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:22:14,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:22:14,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:22:14,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:22:14,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:22:14,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:22:14,620 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:22:14,620 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:22:14,621 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:22:14,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:22:14,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:22:14,622 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:22:14,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:22:14,622 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_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a42fdc99fbc54512a7829bd297e0f02fe251a511098f304812399f6e9de1d8b6 [2024-11-02 11:22:14,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:22:14,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:22:14,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:22:14,961 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:22:14,962 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:22:14,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c Unable to find full path for "g++" [2024-11-02 11:22:17,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:22:17,346 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:22:17,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2024-11-02 11:22:17,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/data/18ec3d5dc/6468970abda04ed1bb49b09e7dc52bf4/FLAGf3a2de95d [2024-11-02 11:22:17,381 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/data/18ec3d5dc/6468970abda04ed1bb49b09e7dc52bf4 [2024-11-02 11:22:17,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:22:17,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:22:17,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:22:17,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:22:17,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:22:17,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e083d88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17, skipping insertion in model container [2024-11-02 11:22:17,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:22:17,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:22:17,716 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:22:17,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:22:17,822 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:22:17,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17 WrapperNode [2024-11-02 11:22:17,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:22:17,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:22:17,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:22:17,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:22:17,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,914 INFO L138 Inliner]: procedures = 22, calls = 157, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 406 [2024-11-02 11:22:17,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:22:17,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:22:17,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:22:17,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:22:17,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:22:17,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:22:17,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:22:17,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:22:17,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (1/1) ... [2024-11-02 11:22:17,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:22:18,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:22:18,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:22:18,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bbe9104-3a65-4f3e-a615-b37ca0dd72ef/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:22:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:22:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-02 11:22:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-02 11:22:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-02 11:22:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-02 11:22:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-02 11:22:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-02 11:22:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-02 11:22:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-02 11:22:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:22:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 11:22:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 11:22:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:22:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:22:18,077 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 11:22:18,227 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:22:18,229 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:22:19,058 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 11:22:19,058 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:22:19,589 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:22:19,589 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 11:22:19,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:22:19 BoogieIcfgContainer [2024-11-02 11:22:19,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:22:19,596 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:22:19,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:22:19,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:22:19,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:22:17" (1/3) ... [2024-11-02 11:22:19,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce79468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:22:19, skipping insertion in model container [2024-11-02 11:22:19,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:22:17" (2/3) ... [2024-11-02 11:22:19,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce79468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:22:19, skipping insertion in model container [2024-11-02 11:22:19,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:22:19" (3/3) ... [2024-11-02 11:22:19,622 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2024-11-02 11:22:19,653 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:22:19,657 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-02 11:22:19,657 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 11:22:19,734 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-02 11:22:19,778 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 102 transitions, 232 flow [2024-11-02 11:22:38,661 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 501775 states, 501151 states have (on average 4.290174019407324) internal successors, (2150025), 501774 states have internal predecessors, (2150025), 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) [2024-11-02 11:22:38,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:22:38,736 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;@1c849b13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:22:38,736 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-02 11:22:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 501775 states, 501151 states have (on average 4.290174019407324) internal successors, (2150025), 501774 states have internal predecessors, (2150025), 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) [2024-11-02 11:22:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 11:22:40,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:22:40,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:22:40,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2024-11-02 11:22:40,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:22:40,738 INFO L85 PathProgramCache]: Analyzing trace with hash -955494258, now seen corresponding path program 1 times [2024-11-02 11:22:40,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:22:40,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955173880] [2024-11-02 11:22:40,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:22:40,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:22:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:22:41,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:22:41,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:22:41,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955173880] [2024-11-02 11:22:41,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955173880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:22:41,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:22:41,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:22:41,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055400283] [2024-11-02 11:22:41,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:22:41,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:22:41,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:22:41,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:22:41,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:22:42,313 INFO L87 Difference]: Start difference. First operand has 501775 states, 501151 states have (on average 4.290174019407324) internal successors, (2150025), 501774 states have internal predecessors, (2150025), 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 2.6666666666666665) internal successors, (8), 3 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)