./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/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_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/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_5df8a7da-16e0-4805-85f3-fd00f6a9000f/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 0f1f05cefb3bd84a08d6d936499ca6f215f6edf0bfbf58f9874b646b6408f7c8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:50,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:50,632 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 11:25:50,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:50,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:50,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:50,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:50,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:50,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:50,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:50,691 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:50,691 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:50,692 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:50,694 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:25:50,695 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:50,695 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:50,695 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:25:50,696 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:25:50,696 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:50,696 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:25:50,697 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:25:50,701 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:25:50,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:50,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:25:50,703 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:25:50,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:25:50,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:25:50,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:50,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:25:50,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:50,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:25:50,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:50,706 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 11:25:50,706 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 11:25:50,707 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:25:50,707 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:25:50,708 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:50,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:50,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:50,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:50,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:50,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:50,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:50,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:25:50,711 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:25:50,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:25:50,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:50,712 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:50,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:50,712 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_5df8a7da-16e0-4805-85f3-fd00f6a9000f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1f05cefb3bd84a08d6d936499ca6f215f6edf0bfbf58f9874b646b6408f7c8 [2024-11-02 11:25:51,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:51,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:51,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:51,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:51,112 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:51,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c Unable to find full path for "g++" [2024-11-02 11:25:53,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:25:54,007 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:25:54,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2024-11-02 11:25:54,026 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/data/afc751c8d/e8b35f2cf92d41fd8df71b9667084ebc/FLAG0ee36a86b [2024-11-02 11:25:54,161 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/data/afc751c8d/e8b35f2cf92d41fd8df71b9667084ebc [2024-11-02 11:25:54,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:25:54,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:25:54,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:54,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:25:54,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:25:54,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f211123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54, skipping insertion in model container [2024-11-02 11:25:54,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:25:54,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:54,557 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:25:54,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:54,637 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:25:54,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54 WrapperNode [2024-11-02 11:25:54,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:54,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:54,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:25:54,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:25:54,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,697 INFO L138 Inliner]: procedures = 21, calls = 96, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 266 [2024-11-02 11:25:54,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:54,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:25:54,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:25:54,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:25:54,709 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:25:54,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:25:54,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:25:54,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:25:54,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (1/1) ... [2024-11-02 11:25:54,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:54,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:54,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:25:54,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5df8a7da-16e0-4805-85f3-fd00f6a9000f/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:25:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:25:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-02 11:25:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-02 11:25:54,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-02 11:25:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-02 11:25:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-02 11:25:54,849 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-02 11:25:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:25:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 11:25:54,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 11:25:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:25:54,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:25:54,852 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 11:25:54,966 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:25:54,968 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:25:55,436 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 11:25:55,436 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:25:56,027 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:25:56,027 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 11:25:56,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:56 BoogieIcfgContainer [2024-11-02 11:25:56,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:25:56,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:25:56,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:25:56,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:25:56,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:54" (1/3) ... [2024-11-02 11:25:56,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a1837f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:56, skipping insertion in model container [2024-11-02 11:25:56,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:54" (2/3) ... [2024-11-02 11:25:56,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a1837f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:56, skipping insertion in model container [2024-11-02 11:25:56,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:56" (3/3) ... [2024-11-02 11:25:56,052 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2024-11-02 11:25:56,084 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:25:56,084 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-02 11:25:56,085 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 11:25:56,226 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-02 11:25:56,263 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 68 transitions, 157 flow [2024-11-02 11:25:57,274 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 14794 states, 14670 states have (on average 3.3314928425357873) internal successors, (48873), 14793 states have internal predecessors, (48873), 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 11:25:57,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:25:57,327 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;@3395fb6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:25:57,327 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-02 11:25:57,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 14794 states, 14670 states have (on average 3.3314928425357873) internal successors, (48873), 14793 states have internal predecessors, (48873), 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 11:25:57,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 11:25:57,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:25:57,387 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:25:57,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:25:57,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:25:57,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1967803496, now seen corresponding path program 1 times [2024-11-02 11:25:57,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:25:57,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206423089] [2024-11-02 11:25:57,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:25:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:25:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:25:58,256 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 11:25:58,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:25:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206423089] [2024-11-02 11:25:58,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206423089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:25:58,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:25:58,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:25:58,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226872095] [2024-11-02 11:25:58,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:25:58,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:25:58,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:25:58,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:25:58,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:25:58,378 INFO L87 Difference]: Start difference. First operand has 14794 states, 14670 states have (on average 3.3314928425357873) internal successors, (48873), 14793 states have internal predecessors, (48873), 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 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 11:25:59,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:25:59,194 INFO L93 Difference]: Finished difference Result 14914 states and 49173 transitions. [2024-11-02 11:25:59,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:25:59,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-11-02 11:25:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:25:59,544 INFO L225 Difference]: With dead ends: 14914 [2024-11-02 11:25:59,544 INFO L226 Difference]: Without dead ends: 14152 [2024-11-02 11:25:59,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:25:59,567 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 170 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 11:25:59,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 41 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 11:25:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14152 states. [2024-11-02 11:26:00,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14152 to 14032. [2024-11-02 11:26:00,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14032 states, 13933 states have (on average 3.323476638197086) internal successors, (46306), 14031 states have internal predecessors, (46306), 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 11:26:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14032 states to 14032 states and 46306 transitions. [2024-11-02 11:26:00,675 INFO L78 Accepts]: Start accepts. Automaton has 14032 states and 46306 transitions. Word has length 7 [2024-11-02 11:26:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:00,676 INFO L471 AbstractCegarLoop]: Abstraction has 14032 states and 46306 transitions. [2024-11-02 11:26:00,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 11:26:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 14032 states and 46306 transitions. [2024-11-02 11:26:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 11:26:00,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:00,679 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:00,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:26:00,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:00,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:00,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1967803497, now seen corresponding path program 1 times [2024-11-02 11:26:00,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:00,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285960367] [2024-11-02 11:26:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:00,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:00,945 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 11:26:00,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:00,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285960367] [2024-11-02 11:26:00,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285960367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:00,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:00,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:26:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923335072] [2024-11-02 11:26:00,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:00,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 11:26:00,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:00,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 11:26:00,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:26:00,951 INFO L87 Difference]: Start difference. First operand 14032 states and 46306 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 11:26:01,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:01,515 INFO L93 Difference]: Finished difference Result 18586 states and 59574 transitions. [2024-11-02 11:26:01,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:26:01,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-11-02 11:26:01,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:01,776 INFO L225 Difference]: With dead ends: 18586 [2024-11-02 11:26:01,776 INFO L226 Difference]: Without dead ends: 15234 [2024-11-02 11:26:01,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-02 11:26:01,795 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 120 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:01,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 52 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:01,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15234 states. [2024-11-02 11:26:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15234 to 14950. [2024-11-02 11:26:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14950 states, 14855 states have (on average 3.330932346011444) internal successors, (49481), 14949 states have internal predecessors, (49481), 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 11:26:02,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14950 states to 14950 states and 49481 transitions. [2024-11-02 11:26:02,721 INFO L78 Accepts]: Start accepts. Automaton has 14950 states and 49481 transitions. Word has length 7 [2024-11-02 11:26:02,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:02,724 INFO L471 AbstractCegarLoop]: Abstraction has 14950 states and 49481 transitions. [2024-11-02 11:26:02,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 11:26:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 14950 states and 49481 transitions. [2024-11-02 11:26:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 11:26:02,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:02,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:02,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:26:02,734 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:02,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:02,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1919507889, now seen corresponding path program 1 times [2024-11-02 11:26:02,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:02,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924158725] [2024-11-02 11:26:02,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:02,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:02,915 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 11:26:02,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:02,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924158725] [2024-11-02 11:26:02,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924158725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:02,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:02,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:26:02,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651767708] [2024-11-02 11:26:02,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:02,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:26:02,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:02,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:26:02,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:26:02,919 INFO L87 Difference]: Start difference. First operand 14950 states and 49481 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2024-11-02 11:26:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:03,316 INFO L93 Difference]: Finished difference Result 14950 states and 49481 transitions. [2024-11-02 11:26:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 11:26:03,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 [2024-11-02 11:26:03,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:03,437 INFO L225 Difference]: With dead ends: 14950 [2024-11-02 11:26:03,437 INFO L226 Difference]: Without dead ends: 14263 [2024-11-02 11:26:03,448 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 [2024-11-02 11:26:03,449 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 123 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:03,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 27 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:26:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14263 states. [2024-11-02 11:26:03,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14263 to 14263. [2024-11-02 11:26:04,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14263 states, 14186 states have (on average 3.3254617228253207) internal successors, (47175), 14262 states have internal predecessors, (47175), 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 11:26:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14263 states to 14263 states and 47175 transitions. [2024-11-02 11:26:04,115 INFO L78 Accepts]: Start accepts. Automaton has 14263 states and 47175 transitions. Word has length 14 [2024-11-02 11:26:04,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:04,233 INFO L471 AbstractCegarLoop]: Abstraction has 14263 states and 47175 transitions. [2024-11-02 11:26:04,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2024-11-02 11:26:04,234 INFO L276 IsEmpty]: Start isEmpty. Operand 14263 states and 47175 transitions. [2024-11-02 11:26:04,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 11:26:04,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:04,242 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:04,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 11:26:04,242 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:04,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:04,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1919507890, now seen corresponding path program 1 times [2024-11-02 11:26:04,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:04,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161031224] [2024-11-02 11:26:04,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:04,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:04,631 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 11:26:04,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:04,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161031224] [2024-11-02 11:26:04,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161031224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:04,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:04,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:26:04,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638533244] [2024-11-02 11:26:04,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:04,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:26:04,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:04,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:26:04,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:04,635 INFO L87 Difference]: Start difference. First operand 14263 states and 47175 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-02 11:26:05,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:05,185 INFO L93 Difference]: Finished difference Result 25623 states and 85395 transitions. [2024-11-02 11:26:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:05,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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 [2024-11-02 11:26:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:05,615 INFO L225 Difference]: With dead ends: 25623 [2024-11-02 11:26:05,615 INFO L226 Difference]: Without dead ends: 23940 [2024-11-02 11:26:05,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:05,628 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 175 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:05,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 68 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:05,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23940 states. [2024-11-02 11:26:06,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23940 to 16076. [2024-11-02 11:26:06,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16076 states, 15999 states have (on average 3.339208700543784) internal successors, (53424), 16075 states have internal predecessors, (53424), 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 11:26:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16076 states to 16076 states and 53424 transitions. [2024-11-02 11:26:06,683 INFO L78 Accepts]: Start accepts. Automaton has 16076 states and 53424 transitions. Word has length 14 [2024-11-02 11:26:06,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:06,684 INFO L471 AbstractCegarLoop]: Abstraction has 16076 states and 53424 transitions. [2024-11-02 11:26:06,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-02 11:26:06,684 INFO L276 IsEmpty]: Start isEmpty. Operand 16076 states and 53424 transitions. [2024-11-02 11:26:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 11:26:06,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:06,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:06,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 11:26:06,688 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:06,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:06,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1360419564, now seen corresponding path program 1 times [2024-11-02 11:26:06,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:06,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417833063] [2024-11-02 11:26:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:06,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:06,941 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 11:26:06,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:06,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417833063] [2024-11-02 11:26:06,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417833063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:06,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:06,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:26:06,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936205427] [2024-11-02 11:26:06,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:06,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:26:06,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:06,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:26:06,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:06,945 INFO L87 Difference]: Start difference. First operand 16076 states and 53424 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-02 11:26:07,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:07,635 INFO L93 Difference]: Finished difference Result 24488 states and 81543 transitions. [2024-11-02 11:26:07,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:07,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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 [2024-11-02 11:26:07,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:07,791 INFO L225 Difference]: With dead ends: 24488 [2024-11-02 11:26:07,791 INFO L226 Difference]: Without dead ends: 23834 [2024-11-02 11:26:07,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:07,805 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 124 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:07,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 87 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23834 states. [2024-11-02 11:26:08,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23834 to 16004. [2024-11-02 11:26:08,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16004 states, 15927 states have (on average 3.3396119796571857) internal successors, (53190), 16003 states have internal predecessors, (53190), 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 11:26:08,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16004 states to 16004 states and 53190 transitions. [2024-11-02 11:26:08,781 INFO L78 Accepts]: Start accepts. Automaton has 16004 states and 53190 transitions. Word has length 14 [2024-11-02 11:26:08,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:08,782 INFO L471 AbstractCegarLoop]: Abstraction has 16004 states and 53190 transitions. [2024-11-02 11:26:08,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-02 11:26:08,783 INFO L276 IsEmpty]: Start isEmpty. Operand 16004 states and 53190 transitions. [2024-11-02 11:26:08,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 11:26:08,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:08,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:08,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 11:26:08,788 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:08,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash 615483045, now seen corresponding path program 1 times [2024-11-02 11:26:08,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:08,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272253820] [2024-11-02 11:26:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:08,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:08,897 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 11:26:08,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272253820] [2024-11-02 11:26:08,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272253820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:08,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:08,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:26:08,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673743186] [2024-11-02 11:26:08,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:08,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 11:26:08,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:08,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 11:26:08,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 11:26:08,905 INFO L87 Difference]: Start difference. First operand 16004 states and 53190 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2024-11-02 11:26:09,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:09,338 INFO L93 Difference]: Finished difference Result 17437 states and 57350 transitions. [2024-11-02 11:26:09,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 11:26:09,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 [2024-11-02 11:26:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:09,475 INFO L225 Difference]: With dead ends: 17437 [2024-11-02 11:26:09,475 INFO L226 Difference]: Without dead ends: 15779 [2024-11-02 11:26:09,489 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 [2024-11-02 11:26:09,490 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 118 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:09,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 68 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 11:26:09,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15779 states. [2024-11-02 11:26:10,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15779 to 15030. [2024-11-02 11:26:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15030 states, 14977 states have (on average 3.3172197369299594) internal successors, (49682), 15029 states have internal predecessors, (49682), 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 11:26:10,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15030 states to 15030 states and 49682 transitions. [2024-11-02 11:26:10,363 INFO L78 Accepts]: Start accepts. Automaton has 15030 states and 49682 transitions. Word has length 14 [2024-11-02 11:26:10,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:10,364 INFO L471 AbstractCegarLoop]: Abstraction has 15030 states and 49682 transitions. [2024-11-02 11:26:10,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2024-11-02 11:26:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 15030 states and 49682 transitions. [2024-11-02 11:26:10,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:26:10,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:10,368 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:10,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 11:26:10,368 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:10,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:10,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1940965634, now seen corresponding path program 1 times [2024-11-02 11:26:10,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:10,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084876388] [2024-11-02 11:26:10,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:10,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:10,579 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 11:26:10,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:10,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084876388] [2024-11-02 11:26:10,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084876388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:10,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:10,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:26:10,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737750752] [2024-11-02 11:26:10,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:10,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:26:10,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:10,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:26:10,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:10,587 INFO L87 Difference]: Start difference. First operand 15030 states and 49682 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 11:26:10,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:10,970 INFO L93 Difference]: Finished difference Result 15468 states and 50845 transitions. [2024-11-02 11:26:10,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:10,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 11:26:10,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:11,050 INFO L225 Difference]: With dead ends: 15468 [2024-11-02 11:26:11,050 INFO L226 Difference]: Without dead ends: 14882 [2024-11-02 11:26:11,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:11,059 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 139 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:11,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 70 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:11,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14882 states. [2024-11-02 11:26:11,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14882 to 14444. [2024-11-02 11:26:11,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14444 states, 14400 states have (on average 3.3108333333333335) internal successors, (47676), 14443 states have internal predecessors, (47676), 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 11:26:11,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14444 states to 14444 states and 47676 transitions. [2024-11-02 11:26:11,757 INFO L78 Accepts]: Start accepts. Automaton has 14444 states and 47676 transitions. Word has length 16 [2024-11-02 11:26:11,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:11,758 INFO L471 AbstractCegarLoop]: Abstraction has 14444 states and 47676 transitions. [2024-11-02 11:26:11,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 11:26:11,759 INFO L276 IsEmpty]: Start isEmpty. Operand 14444 states and 47676 transitions. [2024-11-02 11:26:11,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:26:11,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:11,761 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:11,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 11:26:11,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:11,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:11,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1940965633, now seen corresponding path program 1 times [2024-11-02 11:26:11,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:11,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847587598] [2024-11-02 11:26:11,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:11,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:12,048 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 11:26:12,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:12,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847587598] [2024-11-02 11:26:12,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847587598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:12,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:12,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 11:26:12,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772447661] [2024-11-02 11:26:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:12,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 11:26:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:12,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 11:26:12,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:26:12,051 INFO L87 Difference]: Start difference. First operand 14444 states and 47676 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 11:26:12,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:12,470 INFO L93 Difference]: Finished difference Result 22577 states and 74646 transitions. [2024-11-02 11:26:12,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:12,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 11:26:12,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:12,586 INFO L225 Difference]: With dead ends: 22577 [2024-11-02 11:26:12,587 INFO L226 Difference]: Without dead ends: 22143 [2024-11-02 11:26:12,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:26:12,599 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 136 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:12,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 74 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:12,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22143 states. [2024-11-02 11:26:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22143 to 14851. [2024-11-02 11:26:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14851 states, 14807 states have (on average 3.3166070101978793) internal successors, (49109), 14850 states have internal predecessors, (49109), 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 11:26:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14851 states to 14851 states and 49109 transitions. [2024-11-02 11:26:13,442 INFO L78 Accepts]: Start accepts. Automaton has 14851 states and 49109 transitions. Word has length 16 [2024-11-02 11:26:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:13,443 INFO L471 AbstractCegarLoop]: Abstraction has 14851 states and 49109 transitions. [2024-11-02 11:26:13,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 11:26:13,443 INFO L276 IsEmpty]: Start isEmpty. Operand 14851 states and 49109 transitions. [2024-11-02 11:26:13,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:26:13,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:13,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:13,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-02 11:26:13,447 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:13,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:13,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1465126655, now seen corresponding path program 1 times [2024-11-02 11:26:13,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:13,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055677438] [2024-11-02 11:26:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:13,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:13,792 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 11:26:13,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:13,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055677438] [2024-11-02 11:26:13,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055677438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:13,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:13,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-02 11:26:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799961717] [2024-11-02 11:26:13,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:13,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 11:26:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 11:26:13,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:26:13,796 INFO L87 Difference]: Start difference. First operand 14851 states and 49109 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 11:26:14,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:14,521 INFO L93 Difference]: Finished difference Result 23939 states and 79392 transitions. [2024-11-02 11:26:14,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:14,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 11:26:14,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:14,679 INFO L225 Difference]: With dead ends: 23939 [2024-11-02 11:26:14,679 INFO L226 Difference]: Without dead ends: 23463 [2024-11-02 11:26:14,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:26:14,687 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 142 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:14,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 78 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:14,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23463 states. [2024-11-02 11:26:15,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23463 to 15123. [2024-11-02 11:26:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15123 states, 15079 states have (on average 3.3165992439816963) internal successors, (50011), 15122 states have internal predecessors, (50011), 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 11:26:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15123 states to 15123 states and 50011 transitions. [2024-11-02 11:26:15,392 INFO L78 Accepts]: Start accepts. Automaton has 15123 states and 50011 transitions. Word has length 16 [2024-11-02 11:26:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:15,393 INFO L471 AbstractCegarLoop]: Abstraction has 15123 states and 50011 transitions. [2024-11-02 11:26:15,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 11:26:15,393 INFO L276 IsEmpty]: Start isEmpty. Operand 15123 states and 50011 transitions. [2024-11-02 11:26:15,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:26:15,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:15,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:15,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-02 11:26:15,399 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:15,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:15,400 INFO L85 PathProgramCache]: Analyzing trace with hash -484989657, now seen corresponding path program 2 times [2024-11-02 11:26:15,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:15,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130062017] [2024-11-02 11:26:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:15,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:15,778 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 11:26:15,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:15,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130062017] [2024-11-02 11:26:15,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130062017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:15,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:15,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:26:15,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76882987] [2024-11-02 11:26:15,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:15,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:26:15,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:15,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:26:15,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:15,783 INFO L87 Difference]: Start difference. First operand 15123 states and 50011 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 11:26:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:16,325 INFO L93 Difference]: Finished difference Result 24761 states and 82113 transitions. [2024-11-02 11:26:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:16,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 11:26:16,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:16,683 INFO L225 Difference]: With dead ends: 24761 [2024-11-02 11:26:16,684 INFO L226 Difference]: Without dead ends: 24207 [2024-11-02 11:26:16,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:16,688 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 104 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:16,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 79 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:16,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24207 states. [2024-11-02 11:26:17,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24207 to 14803. [2024-11-02 11:26:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14803 states, 14759 states have (on average 3.3141134223185853) internal successors, (48913), 14802 states have internal predecessors, (48913), 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 11:26:17,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14803 states to 14803 states and 48913 transitions. [2024-11-02 11:26:17,149 INFO L78 Accepts]: Start accepts. Automaton has 14803 states and 48913 transitions. Word has length 16 [2024-11-02 11:26:17,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:17,150 INFO L471 AbstractCegarLoop]: Abstraction has 14803 states and 48913 transitions. [2024-11-02 11:26:17,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 11:26:17,150 INFO L276 IsEmpty]: Start isEmpty. Operand 14803 states and 48913 transitions. [2024-11-02 11:26:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:26:17,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:17,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:17,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-02 11:26:17,154 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:17,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:17,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1594193063, now seen corresponding path program 1 times [2024-11-02 11:26:17,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:17,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017113341] [2024-11-02 11:26:17,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:17,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:17,364 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 11:26:17,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:17,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017113341] [2024-11-02 11:26:17,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017113341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:17,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:17,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:26:17,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204413192] [2024-11-02 11:26:17,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:17,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:26:17,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:17,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:26:17,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:17,367 INFO L87 Difference]: Start difference. First operand 14803 states and 48913 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 11:26:17,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:17,864 INFO L93 Difference]: Finished difference Result 24055 states and 79740 transitions. [2024-11-02 11:26:17,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:17,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 11:26:17,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:17,989 INFO L225 Difference]: With dead ends: 24055 [2024-11-02 11:26:17,989 INFO L226 Difference]: Without dead ends: 23616 [2024-11-02 11:26:18,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:18,003 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 130 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:18,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 81 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 11:26:18,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23616 states. [2024-11-02 11:26:18,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23616 to 16032. [2024-11-02 11:26:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16032 states, 15988 states have (on average 3.313172379284463) internal successors, (52971), 16031 states have internal predecessors, (52971), 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 11:26:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16032 states to 16032 states and 52971 transitions. [2024-11-02 11:26:18,863 INFO L78 Accepts]: Start accepts. Automaton has 16032 states and 52971 transitions. Word has length 16 [2024-11-02 11:26:18,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:18,863 INFO L471 AbstractCegarLoop]: Abstraction has 16032 states and 52971 transitions. [2024-11-02 11:26:18,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 11:26:18,863 INFO L276 IsEmpty]: Start isEmpty. Operand 16032 states and 52971 transitions. [2024-11-02 11:26:18,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:26:18,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:18,866 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:18,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-02 11:26:18,866 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-02 11:26:18,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:18,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1788093991, now seen corresponding path program 1 times [2024-11-02 11:26:18,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:18,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418157123] [2024-11-02 11:26:18,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:18,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:19,110 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 11:26:19,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:19,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418157123] [2024-11-02 11:26:19,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418157123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:19,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:19,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 11:26:19,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241876232] [2024-11-02 11:26:19,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:19,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 11:26:19,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:19,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 11:26:19,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-02 11:26:19,113 INFO L87 Difference]: Start difference. First operand 16032 states and 52971 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 11:26:19,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:19,615 INFO L93 Difference]: Finished difference Result 25559 states and 84649 transitions. [2024-11-02 11:26:19,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 11:26:19,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 11:26:19,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted.