./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix009.oepc.i --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_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/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_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix009.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/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_930b2a78-b085-49b6-9b94-a24b5437120a/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 4dcfd24df13a4fc35e028ca53c41591d13aa2fa957261180f0dd9c1764b57d13 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:51:47,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:51:47,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:51:47,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:51:47,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:51:47,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:51:47,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:51:47,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:51:47,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:51:47,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:51:47,998 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:51:47,998 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:51:47,998 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:51:47,999 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:51:48,000 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:51:48,000 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:51:48,001 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:51:48,002 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:51:48,002 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:51:48,002 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:51:48,003 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:51:48,007 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:51:48,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:51:48,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:51:48,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:51:48,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:51:48,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:51:48,018 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:51:48,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:51:48,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:51:48,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:51:48,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:51:48,020 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:51:48,020 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:51:48,020 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:51:48,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:51:48,021 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:51:48,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:51:48,021 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:51:48,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:51:48,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:51:48,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:51:48,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:51:48,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:51:48,024 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:51:48,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:51:48,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:51:48,024 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:51:48,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:51:48,025 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_930b2a78-b085-49b6-9b94-a24b5437120a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dcfd24df13a4fc35e028ca53c41591d13aa2fa957261180f0dd9c1764b57d13 [2024-11-09 04:51:48,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:51:48,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:51:48,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:51:48,309 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:51:48,310 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:51:48,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-wmm/mix009.oepc.i Unable to find full path for "g++" [2024-11-09 04:51:50,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:51:50,600 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:51:50,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/sv-benchmarks/c/pthread-wmm/mix009.oepc.i [2024-11-09 04:51:50,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/data/86f0b3693/91983fa13f3c455d96327dbb313678f3/FLAG4d010dada [2024-11-09 04:51:50,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/data/86f0b3693/91983fa13f3c455d96327dbb313678f3 [2024-11-09 04:51:50,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:51:50,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:51:50,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:51:50,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:51:50,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:51:50,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:51:50" (1/1) ... [2024-11-09 04:51:50,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1cc9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:50, skipping insertion in model container [2024-11-09 04:51:50,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:51:50" (1/1) ... [2024-11-09 04:51:50,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:51:51,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:51:51,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:51:51,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:51:51,567 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:51:51,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51 WrapperNode [2024-11-09 04:51:51,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:51:51,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:51:51,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:51:51,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:51:51,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,598 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,636 INFO L138 Inliner]: procedures = 174, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 119 [2024-11-09 04:51:51,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:51:51,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:51:51,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:51:51,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:51:51,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:51:51,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:51:51,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:51:51,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:51:51,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (1/1) ... [2024-11-09 04:51:51,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:51:51,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:51:51,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:51:51,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:51:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 04:51:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:51:51,786 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 04:51:51,787 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 04:51:51,787 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 04:51:51,788 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 04:51:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:51:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 04:51:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:51:51,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:51:51,791 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 04:51:51,961 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:51:51,963 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:51:52,311 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 04:51:52,313 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:51:52,699 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:51:52,699 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:51:52,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:51:52 BoogieIcfgContainer [2024-11-09 04:51:52,700 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:51:52,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:51:52,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:51:52,710 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:51:52,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:51:50" (1/3) ... [2024-11-09 04:51:52,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:51:52, skipping insertion in model container [2024-11-09 04:51:52,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:51:51" (2/3) ... [2024-11-09 04:51:52,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:51:52, skipping insertion in model container [2024-11-09 04:51:52,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:51:52" (3/3) ... [2024-11-09 04:51:52,715 INFO L112 eAbstractionObserver]: Analyzing ICFG mix009.oepc.i [2024-11-09 04:51:52,734 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:51:52,734 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 04:51:52,734 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 04:51:52,827 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 04:51:52,862 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 31 transitions, 70 flow [2024-11-09 04:51:52,969 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 766 states, 758 states have (on average 2.6609498680738786) internal successors, (2017), 765 states have internal predecessors, (2017), 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 04:51:53,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:51:53,017 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;@7885f022, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:51:53,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 04:51:53,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 766 states, 758 states have (on average 2.6609498680738786) internal successors, (2017), 765 states have internal predecessors, (2017), 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 04:51:53,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:51:53,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:51:53,031 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:51:53,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-09 04:51:53,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:51:53,037 INFO L85 PathProgramCache]: Analyzing trace with hash 908933630, now seen corresponding path program 1 times [2024-11-09 04:51:53,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:51:53,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564745686] [2024-11-09 04:51:53,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:51:53,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:51:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:51:53,436 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 04:51:53,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:51:53,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564745686] [2024-11-09 04:51:53,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564745686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:51:53,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:51:53,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:51:53,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731274554] [2024-11-09 04:51:53,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:51:53,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:51:53,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:51:53,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:51:53,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:51:53,472 INFO L87 Difference]: Start difference. First operand has 766 states, 758 states have (on average 2.6609498680738786) internal successors, (2017), 765 states have internal predecessors, (2017), 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 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 04:51:53,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:51:53,724 INFO L93 Difference]: Finished difference Result 822 states and 2093 transitions. [2024-11-09 04:51:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:51:53,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 04:51:53,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:51:53,753 INFO L225 Difference]: With dead ends: 822 [2024-11-09 04:51:53,754 INFO L226 Difference]: Without dead ends: 552 [2024-11-09 04:51:53,758 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 04:51:53,764 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:51:53,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 16 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:51:53,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-09 04:51:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-09 04:51:53,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 548 states have (on average 2.571167883211679) internal successors, (1409), 551 states have internal predecessors, (1409), 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 04:51:53,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 1409 transitions. [2024-11-09 04:51:53,844 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 1409 transitions. Word has length 9 [2024-11-09 04:51:53,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:51:53,844 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 1409 transitions. [2024-11-09 04:51:53,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 04:51:53,845 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 1409 transitions. [2024-11-09 04:51:53,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 04:51:53,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:51:53,848 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:51:53,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:51:53,848 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-09 04:51:53,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:51:53,849 INFO L85 PathProgramCache]: Analyzing trace with hash 966205506, now seen corresponding path program 1 times [2024-11-09 04:51:53,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:51:53,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981158002] [2024-11-09 04:51:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:51:53,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:51:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:51:54,111 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 04:51:54,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:51:54,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981158002] [2024-11-09 04:51:54,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981158002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:51:54,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:51:54,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:51:54,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149420075] [2024-11-09 04:51:54,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:51:54,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:51:54,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:51:54,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:51:54,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:51:54,115 INFO L87 Difference]: Start difference. First operand 552 states and 1409 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:51:54,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:51:54,237 INFO L93 Difference]: Finished difference Result 552 states and 1409 transitions. [2024-11-09 04:51:54,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:51:54,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-09 04:51:54,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:51:54,241 INFO L225 Difference]: With dead ends: 552 [2024-11-09 04:51:54,241 INFO L226 Difference]: Without dead ends: 524 [2024-11-09 04:51:54,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:51:54,243 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:51:54,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:51:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-09 04:51:54,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2024-11-09 04:51:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 522 states have (on average 2.5727969348659006) internal successors, (1343), 523 states have internal predecessors, (1343), 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 04:51:54,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1343 transitions. [2024-11-09 04:51:54,270 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1343 transitions. Word has length 17 [2024-11-09 04:51:54,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:51:54,270 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 1343 transitions. [2024-11-09 04:51:54,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:51:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1343 transitions. [2024-11-09 04:51:54,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 04:51:54,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:51:54,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:51:54,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:51:54,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-09 04:51:54,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:51:54,274 INFO L85 PathProgramCache]: Analyzing trace with hash 966205507, now seen corresponding path program 1 times [2024-11-09 04:51:54,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:51:54,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610811210] [2024-11-09 04:51:54,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:51:54,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:51:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:51:54,492 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 04:51:54,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:51:54,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610811210] [2024-11-09 04:51:54,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610811210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:51:54,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:51:54,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:51:54,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678246728] [2024-11-09 04:51:54,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:51:54,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:51:54,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:51:54,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:51:54,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:51:54,497 INFO L87 Difference]: Start difference. First operand 524 states and 1343 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:51:54,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:51:54,594 INFO L93 Difference]: Finished difference Result 524 states and 1343 transitions. [2024-11-09 04:51:54,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:51:54,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-09 04:51:54,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:51:54,596 INFO L225 Difference]: With dead ends: 524 [2024-11-09 04:51:54,597 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:51:54,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:51:54,602 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 27 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:51:54,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 16 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:51:54,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:51:54,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:51:54,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 04:51:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:51:54,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-09 04:51:54,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:51:54,605 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:51:54,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 04:51:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:51:54,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:51:54,608 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-09 04:51:54,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-09 04:51:54,609 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-09 04:51:54,610 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-09 04:51:54,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-09 04:51:54,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-09 04:51:54,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-09 04:51:54,611 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-09 04:51:54,612 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-09 04:51:54,612 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-09 04:51:54,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:51:54,616 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 04:51:54,621 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 04:51:54,621 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:51:54,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:51:54 BasicIcfg [2024-11-09 04:51:54,629 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:51:54,629 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:51:54,630 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:51:54,630 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:51:54,631 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:51:52" (3/4) ... [2024-11-09 04:51:54,634 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:51:54,638 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-09 04:51:54,638 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-09 04:51:54,645 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-11-09 04:51:54,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-09 04:51:54,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 04:51:54,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 04:51:54,736 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:51:54,739 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:51:54,739 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:51:54,740 INFO L158 Benchmark]: Toolchain (without parser) took 3876.86ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 101.8MB in the beginning and 122.7MB in the end (delta: -21.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2024-11-09 04:51:54,741 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 136.3MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:51:54,741 INFO L158 Benchmark]: CACSL2BoogieTranslator took 703.48ms. Allocated memory is still 136.3MB. Free memory was 101.8MB in the beginning and 76.4MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 04:51:54,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.72ms. Allocated memory is still 136.3MB. Free memory was 76.4MB in the beginning and 73.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:51:54,742 INFO L158 Benchmark]: Boogie Preprocessor took 52.36ms. Allocated memory is still 136.3MB. Free memory was 73.9MB in the beginning and 72.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:51:54,742 INFO L158 Benchmark]: RCFGBuilder took 1006.90ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 72.2MB in the beginning and 118.2MB in the end (delta: -46.0MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2024-11-09 04:51:54,743 INFO L158 Benchmark]: TraceAbstraction took 1924.00ms. Allocated memory is still 174.1MB. Free memory was 118.2MB in the beginning and 128.0MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:51:54,745 INFO L158 Benchmark]: Witness Printer took 110.12ms. Allocated memory is still 174.1MB. Free memory was 128.0MB in the beginning and 122.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 04:51:54,747 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 136.3MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 703.48ms. Allocated memory is still 136.3MB. Free memory was 101.8MB in the beginning and 76.4MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.72ms. Allocated memory is still 136.3MB. Free memory was 76.4MB in the beginning and 73.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.36ms. Allocated memory is still 136.3MB. Free memory was 73.9MB in the beginning and 72.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1006.90ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 72.2MB in the beginning and 118.2MB in the end (delta: -46.0MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1924.00ms. Allocated memory is still 174.1MB. Free memory was 118.2MB in the beginning and 128.0MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 110.12ms. Allocated memory is still 174.1MB. Free memory was 128.0MB in the beginning and 122.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 807]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 807]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 55 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 32 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=766occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 04:51:54,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_930b2a78-b085-49b6-9b94-a24b5437120a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE