./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:12:26,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:12:26,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:12:26,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:12:26,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:12:26,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:12:26,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:12:26,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:12:26,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:12:26,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:12:26,189 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:12:26,190 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:12:26,190 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:12:26,190 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:12:26,191 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:12:26,191 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:12:26,192 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:12:26,192 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:12:26,192 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:12:26,193 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:12:26,193 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:12:26,194 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:12:26,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:12:26,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:12:26,195 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:12:26,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:12:26,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:12:26,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:12:26,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:12:26,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:12:26,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:12:26,198 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:12:26,198 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:12:26,198 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:12:26,199 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:12:26,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:12:26,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:12:26,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:12:26,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:12:26,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:12:26,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:12:26,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:12:26,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:12:26,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:12:26,202 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:12:26,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:12:26,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:12:26,203 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:12:26,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:12:26,204 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_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 [2024-11-09 06:12:26,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:12:26,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:12:26,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:12:26,543 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:12:26,544 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:12:26,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c Unable to find full path for "g++" [2024-11-09 06:12:28,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:12:28,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:12:28,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2024-11-09 06:12:28,797 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/data/d11885959/10d2c231a17a41458d12bcb7826e9a73/FLAG4e33e16b4 [2024-11-09 06:12:29,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/data/d11885959/10d2c231a17a41458d12bcb7826e9a73 [2024-11-09 06:12:29,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:12:29,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:12:29,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:12:29,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:12:29,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:12:29,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70cf51e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29, skipping insertion in model container [2024-11-09 06:12:29,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,216 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:12:29,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:12:29,441 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:12:29,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:12:29,482 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:12:29,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29 WrapperNode [2024-11-09 06:12:29,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:12:29,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:12:29,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:12:29,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:12:29,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,525 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 171 [2024-11-09 06:12:29,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:12:29,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:12:29,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:12:29,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:12:29,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:12:29,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:12:29,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:12:29,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:12:29,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (1/1) ... [2024-11-09 06:12:29,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:12:29,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:12:29,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:12:29,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:12:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:12:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 06:12:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 06:12:29,632 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 06:12:29,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 06:12:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:12:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:12:29,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:12:29,635 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:12:29,752 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:12:29,754 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:12:30,150 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:12:30,150 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:12:30,535 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:12:30,537 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:12:30,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:12:30 BoogieIcfgContainer [2024-11-09 06:12:30,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:12:30,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:12:30,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:12:30,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:12:30,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:12:29" (1/3) ... [2024-11-09 06:12:30,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76da38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:12:30, skipping insertion in model container [2024-11-09 06:12:30,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:12:29" (2/3) ... [2024-11-09 06:12:30,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76da38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:12:30, skipping insertion in model container [2024-11-09 06:12:30,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:12:30" (3/3) ... [2024-11-09 06:12:30,549 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2024-11-09 06:12:30,580 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:12:30,580 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 06:12:30,580 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:12:30,673 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:12:30,715 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 72 transitions, 158 flow [2024-11-09 06:12:30,868 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1377 states, 1329 states have (on average 2.8999247554552294) internal successors, (3854), 1376 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:30,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:12:30,913 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;@3abe93dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:12:30,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-09 06:12:30,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 1377 states, 1329 states have (on average 2.8999247554552294) internal successors, (3854), 1376 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:30,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:12:30,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:30,930 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:30,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:30,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:30,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1381454885, now seen corresponding path program 1 times [2024-11-09 06:12:30,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:30,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065525090] [2024-11-09 06:12:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:30,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:31,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:31,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065525090] [2024-11-09 06:12:31,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065525090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:31,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:31,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:12:31,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556772245] [2024-11-09 06:12:31,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:31,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:12:31,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:31,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:12:31,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:31,372 INFO L87 Difference]: Start difference. First operand has 1377 states, 1329 states have (on average 2.8999247554552294) internal successors, (3854), 1376 states have internal predecessors, (3854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:31,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:31,603 INFO L93 Difference]: Finished difference Result 1377 states and 3854 transitions. [2024-11-09 06:12:31,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:12:31,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:12:31,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:31,631 INFO L225 Difference]: With dead ends: 1377 [2024-11-09 06:12:31,631 INFO L226 Difference]: Without dead ends: 1269 [2024-11-09 06:12:31,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:31,641 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:31,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 78 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:12:31,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-09 06:12:31,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1269. [2024-11-09 06:12:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1235 states have (on average 2.8874493927125506) internal successors, (3566), 1268 states have internal predecessors, (3566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:31,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 3566 transitions. [2024-11-09 06:12:31,773 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 3566 transitions. Word has length 9 [2024-11-09 06:12:31,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:31,775 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 3566 transitions. [2024-11-09 06:12:31,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 3566 transitions. [2024-11-09 06:12:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:12:31,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:31,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:31,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:12:31,778 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:31,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash -124570925, now seen corresponding path program 1 times [2024-11-09 06:12:31,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:31,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821311224] [2024-11-09 06:12:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:31,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:31,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:31,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821311224] [2024-11-09 06:12:31,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821311224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:31,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:31,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:12:31,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826292060] [2024-11-09 06:12:31,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:31,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:12:31,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:31,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:12:31,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:31,933 INFO L87 Difference]: Start difference. First operand 1269 states and 3566 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:32,080 INFO L93 Difference]: Finished difference Result 1269 states and 3566 transitions. [2024-11-09 06:12:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:12:32,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-11-09 06:12:32,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:32,095 INFO L225 Difference]: With dead ends: 1269 [2024-11-09 06:12:32,095 INFO L226 Difference]: Without dead ends: 1215 [2024-11-09 06:12:32,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:32,097 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 105 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:32,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 78 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:32,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-11-09 06:12:32,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 1215. [2024-11-09 06:12:32,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1188 states have (on average 2.8804713804713806) internal successors, (3422), 1214 states have internal predecessors, (3422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 3422 transitions. [2024-11-09 06:12:32,148 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 3422 transitions. Word has length 10 [2024-11-09 06:12:32,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:32,149 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 3422 transitions. [2024-11-09 06:12:32,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 3422 transitions. [2024-11-09 06:12:32,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:12:32,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:32,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:32,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:12:32,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:32,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:32,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1226708596, now seen corresponding path program 1 times [2024-11-09 06:12:32,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:32,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112850832] [2024-11-09 06:12:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:32,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:32,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:32,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112850832] [2024-11-09 06:12:32,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112850832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:32,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:32,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:12:32,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185592735] [2024-11-09 06:12:32,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:32,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:12:32,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:32,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:12:32,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:32,306 INFO L87 Difference]: Start difference. First operand 1215 states and 3422 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:32,427 INFO L93 Difference]: Finished difference Result 1215 states and 3422 transitions. [2024-11-09 06:12:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:12:32,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 06:12:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:32,438 INFO L225 Difference]: With dead ends: 1215 [2024-11-09 06:12:32,438 INFO L226 Difference]: Without dead ends: 1121 [2024-11-09 06:12:32,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:32,440 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 99 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:32,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 69 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2024-11-09 06:12:32,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2024-11-09 06:12:32,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1102 states have (on average 2.8747731397459164) internal successors, (3168), 1120 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 3168 transitions. [2024-11-09 06:12:32,493 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 3168 transitions. Word has length 11 [2024-11-09 06:12:32,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:32,494 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 3168 transitions. [2024-11-09 06:12:32,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 3168 transitions. [2024-11-09 06:12:32,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:12:32,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:32,497 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:32,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:12:32,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:32,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:32,498 INFO L85 PathProgramCache]: Analyzing trace with hash 545458613, now seen corresponding path program 1 times [2024-11-09 06:12:32,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:32,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137044796] [2024-11-09 06:12:32,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:32,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:32,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:32,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:32,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137044796] [2024-11-09 06:12:32,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137044796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:32,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:32,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:12:32,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880691383] [2024-11-09 06:12:32,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:32,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:12:32,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:32,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:12:32,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:32,645 INFO L87 Difference]: Start difference. First operand 1121 states and 3168 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:32,851 INFO L93 Difference]: Finished difference Result 1171 states and 3302 transitions. [2024-11-09 06:12:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:12:32,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-11-09 06:12:32,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:32,859 INFO L225 Difference]: With dead ends: 1171 [2024-11-09 06:12:32,860 INFO L226 Difference]: Without dead ends: 1121 [2024-11-09 06:12:32,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:12:32,864 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 129 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:32,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 131 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:12:32,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2024-11-09 06:12:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1071. [2024-11-09 06:12:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1057 states have (on average 2.87038789025544) internal successors, (3034), 1070 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 3034 transitions. [2024-11-09 06:12:32,908 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 3034 transitions. Word has length 12 [2024-11-09 06:12:32,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:32,909 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 3034 transitions. [2024-11-09 06:12:32,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:32,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 3034 transitions. [2024-11-09 06:12:32,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:12:32,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:32,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:32,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:12:32,911 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:32,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash 545459638, now seen corresponding path program 1 times [2024-11-09 06:12:32,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:32,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856209676] [2024-11-09 06:12:32,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:32,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:32,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:32,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856209676] [2024-11-09 06:12:32,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856209676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:32,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:12:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604256345] [2024-11-09 06:12:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:32,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:12:32,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:12:32,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:32,989 INFO L87 Difference]: Start difference. First operand 1071 states and 3034 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:33,127 INFO L93 Difference]: Finished difference Result 1521 states and 4280 transitions. [2024-11-09 06:12:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:12:33,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-11-09 06:12:33,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:33,163 INFO L225 Difference]: With dead ends: 1521 [2024-11-09 06:12:33,163 INFO L226 Difference]: Without dead ends: 1471 [2024-11-09 06:12:33,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:33,167 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 76 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:33,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 109 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:33,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2024-11-09 06:12:33,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1271. [2024-11-09 06:12:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1257 states have (on average 2.8798727128082735) internal successors, (3620), 1270 states have internal predecessors, (3620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 3620 transitions. [2024-11-09 06:12:33,219 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 3620 transitions. Word has length 12 [2024-11-09 06:12:33,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:33,219 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 3620 transitions. [2024-11-09 06:12:33,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 3620 transitions. [2024-11-09 06:12:33,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:12:33,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:33,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:33,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:12:33,221 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:33,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:33,223 INFO L85 PathProgramCache]: Analyzing trace with hash 626739819, now seen corresponding path program 1 times [2024-11-09 06:12:33,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:33,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249308707] [2024-11-09 06:12:33,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:33,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:33,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:33,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249308707] [2024-11-09 06:12:33,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249308707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:33,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:33,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:12:33,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496328505] [2024-11-09 06:12:33,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:33,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:12:33,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:33,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:12:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:33,304 INFO L87 Difference]: Start difference. First operand 1271 states and 3620 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:33,416 INFO L93 Difference]: Finished difference Result 1271 states and 3620 transitions. [2024-11-09 06:12:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:12:33,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-09 06:12:33,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:33,431 INFO L225 Difference]: With dead ends: 1271 [2024-11-09 06:12:33,431 INFO L226 Difference]: Without dead ends: 1218 [2024-11-09 06:12:33,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:33,435 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 94 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:33,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 66 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:33,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2024-11-09 06:12:33,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2024-11-09 06:12:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1207 states have (on average 2.87986743993372) internal successors, (3476), 1217 states have internal predecessors, (3476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 3476 transitions. [2024-11-09 06:12:33,486 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 3476 transitions. Word has length 12 [2024-11-09 06:12:33,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:33,487 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 3476 transitions. [2024-11-09 06:12:33,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 3476 transitions. [2024-11-09 06:12:33,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:12:33,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:33,488 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:33,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:12:33,489 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:33,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash -270651572, now seen corresponding path program 1 times [2024-11-09 06:12:33,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:33,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939893630] [2024-11-09 06:12:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:33,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:33,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:33,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939893630] [2024-11-09 06:12:33,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939893630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:33,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:33,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:12:33,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182944515] [2024-11-09 06:12:33,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:33,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:12:33,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:33,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:12:33,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:12:33,608 INFO L87 Difference]: Start difference. First operand 1218 states and 3476 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:33,826 INFO L93 Difference]: Finished difference Result 1266 states and 3605 transitions. [2024-11-09 06:12:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:12:33,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2024-11-09 06:12:33,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:33,834 INFO L225 Difference]: With dead ends: 1266 [2024-11-09 06:12:33,834 INFO L226 Difference]: Without dead ends: 1138 [2024-11-09 06:12:33,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:12:33,836 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 163 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:33,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 162 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:12:33,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-09 06:12:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1100. [2024-11-09 06:12:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1093 states have (on average 2.8234217749313815) internal successors, (3086), 1099 states have internal predecessors, (3086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 3086 transitions. [2024-11-09 06:12:33,877 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 3086 transitions. Word has length 13 [2024-11-09 06:12:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:33,877 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 3086 transitions. [2024-11-09 06:12:33,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:33,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 3086 transitions. [2024-11-09 06:12:33,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:12:33,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:33,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:33,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:12:33,880 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:33,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:33,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1147053563, now seen corresponding path program 1 times [2024-11-09 06:12:33,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:33,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96275508] [2024-11-09 06:12:33,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:33,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:33,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:33,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96275508] [2024-11-09 06:12:33,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96275508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:33,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:33,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:12:33,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696827205] [2024-11-09 06:12:33,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:33,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:12:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:12:33,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:33,960 INFO L87 Difference]: Start difference. First operand 1100 states and 3086 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:34,120 INFO L93 Difference]: Finished difference Result 1214 states and 3374 transitions. [2024-11-09 06:12:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:12:34,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 06:12:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:34,127 INFO L225 Difference]: With dead ends: 1214 [2024-11-09 06:12:34,128 INFO L226 Difference]: Without dead ends: 1046 [2024-11-09 06:12:34,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:34,129 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 66 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:34,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 131 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2024-11-09 06:12:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 780. [2024-11-09 06:12:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 777 states have (on average 2.765765765765766) internal successors, (2149), 779 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 2149 transitions. [2024-11-09 06:12:34,158 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 2149 transitions. Word has length 14 [2024-11-09 06:12:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:34,159 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 2149 transitions. [2024-11-09 06:12:34,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,159 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 2149 transitions. [2024-11-09 06:12:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:12:34,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:34,160 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:34,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:12:34,160 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:34,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:34,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1000578861, now seen corresponding path program 1 times [2024-11-09 06:12:34,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:34,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564464369] [2024-11-09 06:12:34,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:34,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:34,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:34,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564464369] [2024-11-09 06:12:34,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564464369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:34,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:34,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:12:34,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381988327] [2024-11-09 06:12:34,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:34,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:12:34,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:12:34,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:34,258 INFO L87 Difference]: Start difference. First operand 780 states and 2149 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:34,393 INFO L93 Difference]: Finished difference Result 821 states and 2261 transitions. [2024-11-09 06:12:34,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:12:34,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 06:12:34,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:34,399 INFO L225 Difference]: With dead ends: 821 [2024-11-09 06:12:34,399 INFO L226 Difference]: Without dead ends: 780 [2024-11-09 06:12:34,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:12:34,401 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 104 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:34,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 98 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:34,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-09 06:12:34,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 739. [2024-11-09 06:12:34,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 737 states have (on average 2.7639077340569878) internal successors, (2037), 738 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 2037 transitions. [2024-11-09 06:12:34,425 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 2037 transitions. Word has length 14 [2024-11-09 06:12:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:34,425 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 2037 transitions. [2024-11-09 06:12:34,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 2037 transitions. [2024-11-09 06:12:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:12:34,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:34,427 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:34,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:12:34,427 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:34,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:34,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1000579886, now seen corresponding path program 1 times [2024-11-09 06:12:34,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:34,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113157975] [2024-11-09 06:12:34,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:34,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:34,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:34,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113157975] [2024-11-09 06:12:34,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113157975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:34,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:34,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:12:34,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248325215] [2024-11-09 06:12:34,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:34,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:12:34,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:34,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:12:34,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:34,480 INFO L87 Difference]: Start difference. First operand 739 states and 2037 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:34,586 INFO L93 Difference]: Finished difference Result 1108 states and 3045 transitions. [2024-11-09 06:12:34,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:12:34,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 06:12:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:34,594 INFO L225 Difference]: With dead ends: 1108 [2024-11-09 06:12:34,594 INFO L226 Difference]: Without dead ends: 1067 [2024-11-09 06:12:34,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:34,595 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 66 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:34,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 83 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-11-09 06:12:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 903. [2024-11-09 06:12:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 901 states have (on average 2.8035516093229744) internal successors, (2526), 902 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 2526 transitions. [2024-11-09 06:12:34,626 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 2526 transitions. Word has length 14 [2024-11-09 06:12:34,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:34,626 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 2526 transitions. [2024-11-09 06:12:34,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 2526 transitions. [2024-11-09 06:12:34,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:12:34,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:34,628 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:34,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:12:34,628 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:34,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:34,629 INFO L85 PathProgramCache]: Analyzing trace with hash 953174259, now seen corresponding path program 1 times [2024-11-09 06:12:34,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:34,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634546989] [2024-11-09 06:12:34,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:34,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:34,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:34,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634546989] [2024-11-09 06:12:34,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634546989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:34,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:34,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:12:34,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600497863] [2024-11-09 06:12:34,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:34,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:12:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:34,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:12:34,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:12:34,724 INFO L87 Difference]: Start difference. First operand 903 states and 2526 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:34,896 INFO L93 Difference]: Finished difference Result 944 states and 2638 transitions. [2024-11-09 06:12:34,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:12:34,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 06:12:34,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:34,903 INFO L225 Difference]: With dead ends: 944 [2024-11-09 06:12:34,903 INFO L226 Difference]: Without dead ends: 575 [2024-11-09 06:12:34,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:12:34,906 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 137 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:34,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 129 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-09 06:12:34,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2024-11-09 06:12:34,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 2.6254355400696863) internal successors, (1507), 574 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1507 transitions. [2024-11-09 06:12:34,923 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1507 transitions. Word has length 15 [2024-11-09 06:12:34,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:34,924 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 1507 transitions. [2024-11-09 06:12:34,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:34,924 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1507 transitions. [2024-11-09 06:12:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:12:34,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:34,925 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:34,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:12:34,925 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 06:12:34,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash 430948691, now seen corresponding path program 1 times [2024-11-09 06:12:34,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:34,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070969130] [2024-11-09 06:12:34,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:34,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:35,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:12:35,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:35,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070969130] [2024-11-09 06:12:35,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070969130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:35,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:35,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:12:35,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506867110] [2024-11-09 06:12:35,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:35,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:12:35,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:35,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:12:35,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:35,013 INFO L87 Difference]: Start difference. First operand 575 states and 1507 transitions. Second operand has 5 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) [2024-11-09 06:12:35,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:35,142 INFO L93 Difference]: Finished difference Result 575 states and 1507 transitions. [2024-11-09 06:12:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:12:35,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 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 [2024-11-09 06:12:35,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:35,145 INFO L225 Difference]: With dead ends: 575 [2024-11-09 06:12:35,145 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:12:35,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:12:35,146 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 83 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:35,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 138 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:12:35,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:12:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:12:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:12:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:12:35,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-11-09 06:12:35,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:35,152 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:12:35,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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) [2024-11-09 06:12:35,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:12:35,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:12:35,155 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2024-11-09 06:12:35,156 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2024-11-09 06:12:35,156 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2024-11-09 06:12:35,156 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2024-11-09 06:12:35,156 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2024-11-09 06:12:35,157 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2024-11-09 06:12:35,157 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2024-11-09 06:12:35,157 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2024-11-09 06:12:35,157 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2024-11-09 06:12:35,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2024-11-09 06:12:35,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2024-11-09 06:12:35,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2024-11-09 06:12:35,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2024-11-09 06:12:35,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2024-11-09 06:12:35,158 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2024-11-09 06:12:35,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2024-11-09 06:12:35,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2024-11-09 06:12:35,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2024-11-09 06:12:35,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2024-11-09 06:12:35,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2024-11-09 06:12:35,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2024-11-09 06:12:35,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2024-11-09 06:12:35,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2024-11-09 06:12:35,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2024-11-09 06:12:35,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2024-11-09 06:12:35,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2024-11-09 06:12:35,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:12:35,164 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:35,169 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 06:12:35,169 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:12:35,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:12:35 BasicIcfg [2024-11-09 06:12:35,174 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:12:35,174 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:12:35,174 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:12:35,174 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:12:35,175 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:12:30" (3/4) ... [2024-11-09 06:12:35,177 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:12:35,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 06:12:35,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 06:12:35,187 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-11-09 06:12:35,187 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 06:12:35,187 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 06:12:35,187 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 06:12:35,273 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:12:35,274 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:12:35,274 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:12:35,275 INFO L158 Benchmark]: Toolchain (without parser) took 6089.51ms. Allocated memory was 169.9MB in the beginning and 220.2MB in the end (delta: 50.3MB). Free memory was 129.2MB in the beginning and 155.9MB in the end (delta: -26.7MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-11-09 06:12:35,275 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:12:35,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.87ms. Allocated memory is still 169.9MB. Free memory was 129.2MB in the beginning and 116.0MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:12:35,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.38ms. Allocated memory is still 169.9MB. Free memory was 116.0MB in the beginning and 114.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:12:35,276 INFO L158 Benchmark]: Boogie Preprocessor took 41.68ms. Allocated memory is still 169.9MB. Free memory was 113.4MB in the beginning and 112.5MB in the end (delta: 988.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:12:35,277 INFO L158 Benchmark]: RCFGBuilder took 968.76ms. Allocated memory is still 169.9MB. Free memory was 112.5MB in the beginning and 118.2MB in the end (delta: -5.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 06:12:35,277 INFO L158 Benchmark]: TraceAbstraction took 4632.39ms. Allocated memory was 169.9MB in the beginning and 220.2MB in the end (delta: 50.3MB). Free memory was 117.3MB in the beginning and 161.1MB in the end (delta: -43.8MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-11-09 06:12:35,277 INFO L158 Benchmark]: Witness Printer took 99.90ms. Allocated memory is still 220.2MB. Free memory was 161.1MB in the beginning and 155.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:12:35,279 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.87ms. Allocated memory is still 169.9MB. Free memory was 129.2MB in the beginning and 116.0MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.38ms. Allocated memory is still 169.9MB. Free memory was 116.0MB in the beginning and 114.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.68ms. Allocated memory is still 169.9MB. Free memory was 113.4MB in the beginning and 112.5MB in the end (delta: 988.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 968.76ms. Allocated memory is still 169.9MB. Free memory was 112.5MB in the beginning and 118.2MB in the end (delta: -5.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4632.39ms. Allocated memory was 169.9MB in the beginning and 220.2MB in the end (delta: 50.3MB). Free memory was 117.3MB in the beginning and 161.1MB in the end (delta: -43.8MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 99.90ms. Allocated memory is still 220.2MB. Free memory was 161.1MB in the beginning and 155.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 115 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1230 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1230 mSDsluCounter, 1272 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 595 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1284 IncrementalHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 677 mSDtfsCounter, 1284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1377occurred in iteration=0, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 759 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 06:12:35,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73775297-a369-4dcf-945d-4f438e6f3bf0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE