./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_17a-ps_add1_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/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_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_17a-ps_add1_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/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_66cf6f88-1dcc-4acb-97b9-165575d37537/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 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:02:37,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:02:38,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:02:38,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:02:38,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:02:38,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:02:38,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:02:38,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:02:38,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:02:38,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:02:38,086 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:02:38,086 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:02:38,087 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:02:38,087 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:02:38,088 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:02:38,088 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:02:38,090 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:02:38,090 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:02:38,090 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:02:38,091 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:02:38,091 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:02:38,094 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:02:38,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:02:38,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:02:38,096 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:02:38,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:02:38,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:02:38,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:02:38,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:02:38,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:02:38,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:02:38,102 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:02:38,102 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:02:38,102 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:02:38,103 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:02:38,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:02:38,103 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:02:38,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:02:38,104 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:02:38,104 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:02:38,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:02:38,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:02:38,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:02:38,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:02:38,108 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:02:38,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:02:38,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:02:38,109 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:02:38,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:02:38,109 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_66cf6f88-1dcc-4acb-97b9-165575d37537/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 [2024-11-09 07:02:38,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:02:38,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:02:38,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:02:38,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:02:38,444 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:02:38,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/goblint-regression/04-mutex_17a-ps_add1_nr.i Unable to find full path for "g++" [2024-11-09 07:02:40,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:02:40,777 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:02:40,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/sv-benchmarks/c/goblint-regression/04-mutex_17a-ps_add1_nr.i [2024-11-09 07:02:40,795 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/data/0fe457460/96b5e5959d2743bda51a0e9a20d1ff2a/FLAGfe79ddd73 [2024-11-09 07:02:41,056 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/data/0fe457460/96b5e5959d2743bda51a0e9a20d1ff2a [2024-11-09 07:02:41,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:02:41,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:02:41,061 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:02:41,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:02:41,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:02:41,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:41,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536ebdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41, skipping insertion in model container [2024-11-09 07:02:41,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:41,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:02:41,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:02:41,786 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:02:41,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:02:41,950 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:02:41,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41 WrapperNode [2024-11-09 07:02:41,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:02:41,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:02:41,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:02:41,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:02:41,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:41,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,019 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2024-11-09 07:02:42,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:02:42,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:02:42,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:02:42,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:02:42,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:02:42,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:02:42,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:02:42,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:02:42,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (1/1) ... [2024-11-09 07:02:42,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:02:42,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:02:42,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:02:42,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:02:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 07:02:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 07:02:42,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:02:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 07:02:42,146 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 07:02:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:02:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:02:42,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:02:42,149 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 07:02:42,309 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:02:42,312 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:02:42,495 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:02:42,495 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:02:42,666 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:02:42,666 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:02:42,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:02:42 BoogieIcfgContainer [2024-11-09 07:02:42,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:02:42,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:02:42,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:02:42,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:02:42,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:02:41" (1/3) ... [2024-11-09 07:02:42,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228e95a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:02:42, skipping insertion in model container [2024-11-09 07:02:42,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:02:41" (2/3) ... [2024-11-09 07:02:42,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228e95a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:02:42, skipping insertion in model container [2024-11-09 07:02:42,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:02:42" (3/3) ... [2024-11-09 07:02:42,684 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17a-ps_add1_nr.i [2024-11-09 07:02:42,708 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:02:42,709 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-09 07:02:42,709 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:02:42,820 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:02:42,856 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 40 transitions, 84 flow [2024-11-09 07:02:42,906 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 250 states, 224 states have (on average 2.1830357142857144) internal successors, (489), 249 states have internal predecessors, (489), 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 07:02:42,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:02:42,954 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;@79267311, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:02:42,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 07:02:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 224 states have (on average 2.1830357142857144) internal successors, (489), 249 states have internal predecessors, (489), 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 07:02:42,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 07:02:42,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:42,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 07:02:42,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 07:02:42,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1933887740, now seen corresponding path program 1 times [2024-11-09 07:02:42,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:42,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530230664] [2024-11-09 07:02:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:42,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:43,347 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 07:02:43,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:43,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530230664] [2024-11-09 07:02:43,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530230664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:43,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:43,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:02:43,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144477375] [2024-11-09 07:02:43,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:43,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:43,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:43,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:43,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:43,396 INFO L87 Difference]: Start difference. First operand has 250 states, 224 states have (on average 2.1830357142857144) internal successors, (489), 249 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 07:02:43,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:43,614 INFO L93 Difference]: Finished difference Result 437 states and 861 transitions. [2024-11-09 07:02:43,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:02:43,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2024-11-09 07:02:43,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:43,648 INFO L225 Difference]: With dead ends: 437 [2024-11-09 07:02:43,648 INFO L226 Difference]: Without dead ends: 417 [2024-11-09 07:02:43,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 07:02:43,660 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 45 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:43,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 60 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:02:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-09 07:02:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 290. [2024-11-09 07:02:43,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 264 states have (on average 2.178030303030303) internal successors, (575), 289 states have internal predecessors, (575), 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 07:02:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 575 transitions. [2024-11-09 07:02:43,767 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 575 transitions. Word has length 6 [2024-11-09 07:02:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:43,770 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 575 transitions. [2024-11-09 07:02:43,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 07:02:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 575 transitions. [2024-11-09 07:02:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 07:02:43,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:43,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 07:02:43,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:02:43,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 07:02:43,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:43,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1934429141, now seen corresponding path program 1 times [2024-11-09 07:02:43,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:43,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453552274] [2024-11-09 07:02:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:43,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:43,973 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 07:02:43,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:43,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453552274] [2024-11-09 07:02:43,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453552274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:43,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:43,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052090326] [2024-11-09 07:02:43,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:43,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:43,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:43,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:43,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:43,982 INFO L87 Difference]: Start difference. First operand 290 states and 575 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:02:44,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:44,155 INFO L93 Difference]: Finished difference Result 371 states and 747 transitions. [2024-11-09 07:02:44,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:02:44,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-09 07:02:44,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:44,164 INFO L225 Difference]: With dead ends: 371 [2024-11-09 07:02:44,165 INFO L226 Difference]: Without dead ends: 283 [2024-11-09 07:02:44,166 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 07:02:44,168 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 68 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:44,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 84 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:02:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-09 07:02:44,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 273. [2024-11-09 07:02:44,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 259 states have (on average 2.0463320463320462) internal successors, (530), 272 states have internal predecessors, (530), 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 07:02:44,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 530 transitions. [2024-11-09 07:02:44,188 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 530 transitions. Word has length 6 [2024-11-09 07:02:44,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:44,189 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 530 transitions. [2024-11-09 07:02:44,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:02:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 530 transitions. [2024-11-09 07:02:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 07:02:44,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:44,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:44,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:02:44,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 07:02:44,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:44,191 INFO L85 PathProgramCache]: Analyzing trace with hash -179080496, now seen corresponding path program 1 times [2024-11-09 07:02:44,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:44,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218518153] [2024-11-09 07:02:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:44,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:44,252 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 07:02:44,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:44,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218518153] [2024-11-09 07:02:44,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218518153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:44,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:44,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:02:44,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831018964] [2024-11-09 07:02:44,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:44,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:44,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:44,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:44,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:44,255 INFO L87 Difference]: Start difference. First operand 273 states and 530 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:44,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:44,363 INFO L93 Difference]: Finished difference Result 280 states and 543 transitions. [2024-11-09 07:02:44,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:02:44,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 07:02:44,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:44,366 INFO L225 Difference]: With dead ends: 280 [2024-11-09 07:02:44,366 INFO L226 Difference]: Without dead ends: 272 [2024-11-09 07:02:44,367 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 07:02:44,369 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:44,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 30 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:02:44,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-09 07:02:44,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2024-11-09 07:02:44,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 252 states have (on average 2.0436507936507935) internal successors, (515), 264 states have internal predecessors, (515), 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 07:02:44,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 515 transitions. [2024-11-09 07:02:44,390 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 515 transitions. Word has length 7 [2024-11-09 07:02:44,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:44,391 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 515 transitions. [2024-11-09 07:02:44,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:44,391 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 515 transitions. [2024-11-09 07:02:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 07:02:44,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:44,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:44,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:02:44,393 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 07:02:44,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:44,393 INFO L85 PathProgramCache]: Analyzing trace with hash -179022015, now seen corresponding path program 1 times [2024-11-09 07:02:44,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:44,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266502476] [2024-11-09 07:02:44,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:44,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:44,486 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 07:02:44,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:02:44,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266502476] [2024-11-09 07:02:44,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266502476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:44,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:02:44,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:02:44,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776233406] [2024-11-09 07:02:44,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:44,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:02:44,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:02:44,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:02:44,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:02:44,493 INFO L87 Difference]: Start difference. First operand 265 states and 515 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:44,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:44,646 INFO L93 Difference]: Finished difference Result 280 states and 535 transitions. [2024-11-09 07:02:44,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:02:44,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 07:02:44,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:44,649 INFO L225 Difference]: With dead ends: 280 [2024-11-09 07:02:44,649 INFO L226 Difference]: Without dead ends: 272 [2024-11-09 07:02:44,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 07:02:44,654 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:44,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 61 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:02:44,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-09 07:02:44,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 265. [2024-11-09 07:02:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 252 states have (on average 2.011904761904762) internal successors, (507), 264 states have internal predecessors, (507), 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 07:02:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 507 transitions. [2024-11-09 07:02:44,669 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 507 transitions. Word has length 7 [2024-11-09 07:02:44,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:44,669 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 507 transitions. [2024-11-09 07:02:44,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:02:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 507 transitions. [2024-11-09 07:02:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 07:02:44,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:44,671 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:44,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:02:44,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-09 07:02:44,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1256527891, now seen corresponding path program 1 times [2024-11-09 07:02:44,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:02:44,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087216679] [2024-11-09 07:02:44,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:44,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:02:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:02:44,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:02:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:02:44,742 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:02:44,743 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:02:44,744 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-09 07:02:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-09 07:02:44,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-09 07:02:44,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-09 07:02:44,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-09 07:02:44,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-09 07:02:44,749 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-09 07:02:44,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-09 07:02:44,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-09 07:02:44,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-09 07:02:44,750 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-09 07:02:44,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-09 07:02:44,751 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-09 07:02:44,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:02:44,756 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 07:02:44,785 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 07:02:44,785 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:02:44,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:02:44 BasicIcfg [2024-11-09 07:02:44,790 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:02:44,791 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:02:44,792 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:02:44,792 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:02:44,793 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:02:42" (3/4) ... [2024-11-09 07:02:44,794 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 07:02:44,844 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:02:44,845 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:02:44,848 INFO L158 Benchmark]: Toolchain (without parser) took 3785.91ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 102.8MB in the beginning and 129.0MB in the end (delta: -26.2MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-09 07:02:44,849 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:02:44,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 889.89ms. Allocated memory is still 136.3MB. Free memory was 102.8MB in the beginning and 72.4MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 07:02:44,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.84ms. Allocated memory is still 136.3MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:02:44,850 INFO L158 Benchmark]: Boogie Preprocessor took 44.22ms. Allocated memory is still 136.3MB. Free memory was 70.3MB in the beginning and 68.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:02:44,850 INFO L158 Benchmark]: RCFGBuilder took 606.59ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 68.8MB in the beginning and 148.5MB in the end (delta: -79.7MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2024-11-09 07:02:44,851 INFO L158 Benchmark]: TraceAbstraction took 2115.43ms. Allocated memory is still 180.4MB. Free memory was 147.4MB in the beginning and 131.1MB in the end (delta: 16.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-09 07:02:44,851 INFO L158 Benchmark]: Witness Printer took 53.87ms. Allocated memory is still 180.4MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:02:44,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 104.9MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 889.89ms. Allocated memory is still 136.3MB. Free memory was 102.8MB in the beginning and 72.4MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.84ms. Allocated memory is still 136.3MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.22ms. Allocated memory is still 136.3MB. Free memory was 70.3MB in the beginning and 68.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.59ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 68.8MB in the beginning and 148.5MB in the end (delta: -79.7MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2115.43ms. Allocated memory is still 180.4MB. Free memory was 147.4MB in the beginning and 131.1MB in the end (delta: 16.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 53.87ms. Allocated memory is still 180.4MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 944]: integer overflow possible integer overflow possible We found a FailurePath: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L937] 0 int i = __VERIFIER_nondet_int(); [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob=0, i=2147483647, id=-1, m={1:0}] [L941] COND TRUE 0 \read(i) VAL [\old(arg)={0:0}, glob=0, i=2147483647, id=-1, m={1:0}] [L944] 0 i++ VAL [\old(arg)={0:0}, glob=0, i=2147483647, id=-1, m={1:0}] - UnprovableResult [Line: 944]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 49 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 167 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 235 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 132 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 103 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 151 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-09 07:02:44,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cf6f88-1dcc-4acb-97b9-165575d37537/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)