./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i --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_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:37:36,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:37:36,990 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:37:36,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:37:36,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:37:37,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:37:37,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:37:37,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:37:37,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:37:37,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:37:37,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:37:37,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:37:37,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:37:37,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:37:37,053 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:37:37,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:37:37,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:37:37,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:37:37,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:37:37,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:37:37,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:37:37,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:37:37,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:37:37,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:37:37,062 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:37:37,063 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:37:37,063 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:37:37,063 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:37:37,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:37:37,064 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:37:37,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:37:37,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:37:37,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:37:37,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:37:37,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:37:37,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:37:37,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:37:37,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:37:37,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:37:37,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:37:37,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:37:37,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:37:37,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:37:37,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:37:37,074 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 [2024-11-08 16:37:37,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:37:37,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:37:37,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:37:37,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:37:37,476 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:37:37,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i Unable to find full path for "g++" [2024-11-08 16:37:40,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:37:40,447 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:37:40,448 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-11-08 16:37:40,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/data/9285d509a/ff90f05c2ad84fd5886e96c14f4a6c38/FLAGf49c79c30 [2024-11-08 16:37:40,501 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/data/9285d509a/ff90f05c2ad84fd5886e96c14f4a6c38 [2024-11-08 16:37:40,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:37:40,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:37:40,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:37:40,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:37:40,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:37:40,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:37:40" (1/1) ... [2024-11-08 16:37:40,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643aa10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:40, skipping insertion in model container [2024-11-08 16:37:40,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:37:40" (1/1) ... [2024-11-08 16:37:40,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:37:41,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:37:41,260 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:37:41,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:37:41,391 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:37:41,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41 WrapperNode [2024-11-08 16:37:41,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:37:41,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:37:41,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:37:41,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:37:41,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,486 INFO L138 Inliner]: procedures = 172, calls = 61, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 154 [2024-11-08 16:37:41,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:37:41,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:37:41,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:37:41,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:37:41,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,547 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-11-08 16:37:41,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:37:41,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:37:41,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:37:41,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:37:41,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (1/1) ... [2024-11-08 16:37:41,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:37:41,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:37:41,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:37:41,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:37:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:37:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:37:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:37:41,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:37:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:37:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:37:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:37:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:37:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:37:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:37:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:37:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:37:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:37:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 16:37:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 16:37:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:37:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-08 16:37:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:37:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:37:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:37:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:37:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:37:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:37:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:37:41,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:37:41,722 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:37:41,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:37:41,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:37:42,649 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:37:42,650 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:37:43,061 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:37:43,062 INFO L316 CfgBuilder]: Removed 21 assume(true) statements. [2024-11-08 16:37:43,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:37:43 BoogieIcfgContainer [2024-11-08 16:37:43,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:37:43,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:37:43,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:37:43,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:37:43,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:37:40" (1/3) ... [2024-11-08 16:37:43,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e202f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:37:43, skipping insertion in model container [2024-11-08 16:37:43,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:41" (2/3) ... [2024-11-08 16:37:43,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e202f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:37:43, skipping insertion in model container [2024-11-08 16:37:43,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:37:43" (3/3) ... [2024-11-08 16:37:43,075 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_42-trylock2_racefree.i [2024-11-08 16:37:43,092 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:37:43,092 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 16:37:43,093 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:37:43,159 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 16:37:43,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 127 transitions, 261 flow [2024-11-08 16:37:43,330 INFO L124 PetriNetUnfolderBase]: 37/179 cut-off events. [2024-11-08 16:37:43,330 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:37:43,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 179 events. 37/179 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 712 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 118. Up to 6 conditions per place. [2024-11-08 16:37:43,338 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 127 transitions, 261 flow [2024-11-08 16:37:43,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 126 transitions, 259 flow [2024-11-08 16:37:43,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:37:43,371 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=PETRI_NET, 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;@c70a19d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:37:43,371 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 16:37:43,383 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:37:43,383 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 16:37:43,384 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:37:43,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:37:43,385 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:37:43,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:37:43,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:43,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1907570908, now seen corresponding path program 1 times [2024-11-08 16:37:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:43,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650774908] [2024-11-08 16:37:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:43,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:43,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:43,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:43,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650774908] [2024-11-08 16:37:43,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650774908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:43,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:43,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:37:43,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913102975] [2024-11-08 16:37:43,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:43,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:37:43,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:44,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:37:44,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:37:44,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 127 [2024-11-08 16:37:44,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 126 transitions, 259 flow. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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) [2024-11-08 16:37:44,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:37:44,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 127 [2024-11-08 16:37:44,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:37:44,894 INFO L124 PetriNetUnfolderBase]: 654/1686 cut-off events. [2024-11-08 16:37:44,895 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:37:44,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2943 conditions, 1686 events. 654/1686 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 10345 event pairs, 0 based on Foata normal form. 343/1952 useless extension candidates. Maximal degree in co-relation 2902. Up to 1185 conditions per place. [2024-11-08 16:37:44,921 INFO L140 encePairwiseOnDemand]: 99/127 looper letters, 93 selfloop transitions, 3 changer transitions 0/146 dead transitions. [2024-11-08 16:37:44,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 146 transitions, 491 flow [2024-11-08 16:37:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:37:44,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:37:44,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2024-11-08 16:37:44,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6791338582677166 [2024-11-08 16:37:44,945 INFO L175 Difference]: Start difference. First operand has 105 places, 126 transitions, 259 flow. Second operand 4 states and 345 transitions. [2024-11-08 16:37:44,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 146 transitions, 491 flow [2024-11-08 16:37:44,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 146 transitions, 491 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:37:44,963 INFO L231 Difference]: Finished difference. Result has 107 places, 103 transitions, 225 flow [2024-11-08 16:37:44,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=107, PETRI_TRANSITIONS=103} [2024-11-08 16:37:44,971 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2024-11-08 16:37:44,974 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 103 transitions, 225 flow [2024-11-08 16:37:44,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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) [2024-11-08 16:37:44,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:37:44,975 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:44,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:37:44,976 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:37:44,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:44,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2101790848, now seen corresponding path program 1 times [2024-11-08 16:37:44,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:44,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561294615] [2024-11-08 16:37:44,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:44,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:37:45,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:37:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:37:45,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:37:45,150 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:37:45,154 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-08 16:37:45,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-08 16:37:45,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-08 16:37:45,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-08 16:37:45,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-08 16:37:45,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-08 16:37:45,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-08 16:37:45,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-08 16:37:45,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-08 16:37:45,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-08 16:37:45,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-08 16:37:45,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-08 16:37:45,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-08 16:37:45,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-08 16:37:45,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-08 16:37:45,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-08 16:37:45,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-08 16:37:45,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-08 16:37:45,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-08 16:37:45,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-08 16:37:45,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-08 16:37:45,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:37:45,166 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 16:37:45,172 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:37:45,172 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:37:45,246 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 16:37:45,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 190 transitions, 396 flow [2024-11-08 16:37:45,312 INFO L124 PetriNetUnfolderBase]: 64/316 cut-off events. [2024-11-08 16:37:45,313 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 16:37:45,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 316 events. 64/316 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1433 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 191. Up to 9 conditions per place. [2024-11-08 16:37:45,318 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 190 transitions, 396 flow [2024-11-08 16:37:45,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 190 transitions, 396 flow [2024-11-08 16:37:45,326 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:37:45,327 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, 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;@c70a19d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:37:45,327 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-08 16:37:45,331 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:37:45,331 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 16:37:45,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:37:45,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:37:45,332 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:37:45,332 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:37:45,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:45,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1061448423, now seen corresponding path program 1 times [2024-11-08 16:37:45,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:45,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647083357] [2024-11-08 16:37:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:45,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:45,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:45,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647083357] [2024-11-08 16:37:45,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647083357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:45,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:45,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:37:45,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19024228] [2024-11-08 16:37:45,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:45,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:37:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:37:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:37:45,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 190 [2024-11-08 16:37:45,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 190 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-11-08 16:37:45,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:37:45,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 190 [2024-11-08 16:37:45,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:37:56,565 INFO L124 PetriNetUnfolderBase]: 30285/62842 cut-off events. [2024-11-08 16:37:56,565 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-08 16:37:56,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108540 conditions, 62842 events. 30285/62842 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 963. Compared 639163 event pairs, 13944 based on Foata normal form. 13098/71708 useless extension candidates. Maximal degree in co-relation 4834. Up to 45514 conditions per place. [2024-11-08 16:37:56,986 INFO L140 encePairwiseOnDemand]: 150/190 looper letters, 121 selfloop transitions, 3 changer transitions 0/202 dead transitions. [2024-11-08 16:37:56,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 202 transitions, 668 flow [2024-11-08 16:37:56,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:37:56,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:37:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 497 transitions. [2024-11-08 16:37:56,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6539473684210526 [2024-11-08 16:37:56,996 INFO L175 Difference]: Start difference. First operand has 157 places, 190 transitions, 396 flow. Second operand 4 states and 497 transitions. [2024-11-08 16:37:56,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 202 transitions, 668 flow [2024-11-08 16:37:56,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 202 transitions, 668 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:37:57,006 INFO L231 Difference]: Finished difference. Result has 162 places, 159 transitions, 356 flow [2024-11-08 16:37:57,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=162, PETRI_TRANSITIONS=159} [2024-11-08 16:37:57,007 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 5 predicate places. [2024-11-08 16:37:57,008 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 159 transitions, 356 flow [2024-11-08 16:37:57,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-11-08 16:37:57,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:37:57,009 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:57,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:37:57,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:37:57,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:57,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1610846746, now seen corresponding path program 1 times [2024-11-08 16:37:57,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:57,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746055776] [2024-11-08 16:37:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:57,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:57,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:57,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746055776] [2024-11-08 16:37:57,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746055776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:57,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:57,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:37:57,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830995229] [2024-11-08 16:37:57,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:57,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:37:57,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:57,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:37:57,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:37:57,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 190 [2024-11-08 16:37:57,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 159 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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) [2024-11-08 16:37:57,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:37:57,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 190 [2024-11-08 16:37:57,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:09,663 INFO L124 PetriNetUnfolderBase]: 49408/100098 cut-off events. [2024-11-08 16:38:09,664 INFO L125 PetriNetUnfolderBase]: For 734/1817 co-relation queries the response was YES. [2024-11-08 16:38:09,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175334 conditions, 100098 events. 49408/100098 cut-off events. For 734/1817 co-relation queries the response was YES. Maximal size of possible extension queue 1651. Compared 1079972 event pairs, 11966 based on Foata normal form. 1002/95383 useless extension candidates. Maximal degree in co-relation 175158. Up to 40500 conditions per place. [2024-11-08 16:38:10,410 INFO L140 encePairwiseOnDemand]: 179/190 looper letters, 230 selfloop transitions, 16 changer transitions 0/329 dead transitions. [2024-11-08 16:38:10,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 329 transitions, 1222 flow [2024-11-08 16:38:10,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:38:10,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:38:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 657 transitions. [2024-11-08 16:38:10,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6915789473684211 [2024-11-08 16:38:10,415 INFO L175 Difference]: Start difference. First operand has 162 places, 159 transitions, 356 flow. Second operand 5 states and 657 transitions. [2024-11-08 16:38:10,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 329 transitions, 1222 flow [2024-11-08 16:38:10,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 329 transitions, 1218 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:38:10,429 INFO L231 Difference]: Finished difference. Result has 169 places, 174 transitions, 480 flow [2024-11-08 16:38:10,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=480, PETRI_PLACES=169, PETRI_TRANSITIONS=174} [2024-11-08 16:38:10,431 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 12 predicate places. [2024-11-08 16:38:10,431 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 174 transitions, 480 flow [2024-11-08 16:38:10,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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) [2024-11-08 16:38:10,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:10,436 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:10,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:38:10,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:38:10,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1233225281, now seen corresponding path program 1 times [2024-11-08 16:38:10,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:10,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544666168] [2024-11-08 16:38:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:10,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:10,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:10,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544666168] [2024-11-08 16:38:10,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544666168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:38:10,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536065624] [2024-11-08 16:38:10,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:10,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:10,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:10,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:38:10,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:38:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:38:10,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:38:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:10,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:38:10,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536065624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:10,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:38:10,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 16:38:10,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761899963] [2024-11-08 16:38:10,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:10,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:38:10,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:10,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:38:10,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:38:10,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 190 [2024-11-08 16:38:10,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 174 transitions, 480 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2024-11-08 16:38:10,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:10,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 190 [2024-11-08 16:38:10,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:25,286 INFO L124 PetriNetUnfolderBase]: 51592/105149 cut-off events. [2024-11-08 16:38:25,286 INFO L125 PetriNetUnfolderBase]: For 22072/22106 co-relation queries the response was YES. [2024-11-08 16:38:25,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202818 conditions, 105149 events. 51592/105149 cut-off events. For 22072/22106 co-relation queries the response was YES. Maximal size of possible extension queue 1686. Compared 1138981 event pairs, 29184 based on Foata normal form. 540/99530 useless extension candidates. Maximal degree in co-relation 189015. Up to 68807 conditions per place. [2024-11-08 16:38:25,956 INFO L140 encePairwiseOnDemand]: 185/190 looper letters, 226 selfloop transitions, 6 changer transitions 0/310 dead transitions. [2024-11-08 16:38:25,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 310 transitions, 1298 flow [2024-11-08 16:38:25,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:38:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:38:25,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 676 transitions. [2024-11-08 16:38:25,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5929824561403508 [2024-11-08 16:38:25,960 INFO L175 Difference]: Start difference. First operand has 169 places, 174 transitions, 480 flow. Second operand 6 states and 676 transitions. [2024-11-08 16:38:25,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 310 transitions, 1298 flow [2024-11-08 16:38:26,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 310 transitions, 1298 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:38:26,042 INFO L231 Difference]: Finished difference. Result has 173 places, 173 transitions, 488 flow [2024-11-08 16:38:26,043 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=488, PETRI_PLACES=173, PETRI_TRANSITIONS=173} [2024-11-08 16:38:26,046 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 16 predicate places. [2024-11-08 16:38:26,046 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 173 transitions, 488 flow [2024-11-08 16:38:26,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2024-11-08 16:38:26,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:26,047 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 16:38:26,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:38:26,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70005daa-a0b3-4c48-a8a9-c4938fe010d7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:26,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:38:26,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:26,250 INFO L85 PathProgramCache]: Analyzing trace with hash -424721068, now seen corresponding path program 1 times [2024-11-08 16:38:26,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:26,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581255007] [2024-11-08 16:38:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:26,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:26,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:38:26,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:26,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581255007] [2024-11-08 16:38:26,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581255007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:26,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:26,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:38:26,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031430238] [2024-11-08 16:38:26,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:26,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:38:26,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:26,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:38:26,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:38:26,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 190 [2024-11-08 16:38:26,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 173 transitions, 488 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2024-11-08 16:38:26,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:26,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 190 [2024-11-08 16:38:26,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:38:40,274 INFO L124 PetriNetUnfolderBase]: 50951/101680 cut-off events. [2024-11-08 16:38:40,274 INFO L125 PetriNetUnfolderBase]: For 23326/23357 co-relation queries the response was YES. [2024-11-08 16:38:40,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198987 conditions, 101680 events. 50951/101680 cut-off events. For 23326/23357 co-relation queries the response was YES. Maximal size of possible extension queue 1643. Compared 1085131 event pairs, 13278 based on Foata normal form. 1090/98496 useless extension candidates. Maximal degree in co-relation 177745. Up to 71530 conditions per place. [2024-11-08 16:38:40,787 INFO L140 encePairwiseOnDemand]: 184/190 looper letters, 183 selfloop transitions, 6 changer transitions 0/266 dead transitions. [2024-11-08 16:38:40,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 266 transitions, 1112 flow [2024-11-08 16:38:40,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:38:40,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:38:40,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 472 transitions. [2024-11-08 16:38:40,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6210526315789474 [2024-11-08 16:38:40,790 INFO L175 Difference]: Start difference. First operand has 173 places, 173 transitions, 488 flow. Second operand 4 states and 472 transitions. [2024-11-08 16:38:40,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 266 transitions, 1112 flow [2024-11-08 16:38:40,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 266 transitions, 1102 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 16:38:40,912 INFO L231 Difference]: Finished difference. Result has 172 places, 172 transitions, 490 flow [2024-11-08 16:38:40,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=490, PETRI_PLACES=172, PETRI_TRANSITIONS=172} [2024-11-08 16:38:40,913 INFO L277 CegarLoopForPetriNet]: 157 programPoint places, 15 predicate places. [2024-11-08 16:38:40,913 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 172 transitions, 490 flow [2024-11-08 16:38:40,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2024-11-08 16:38:40,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:40,914 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 16:38:40,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:38:40,914 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:38:40,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:40,915 INFO L85 PathProgramCache]: Analyzing trace with hash 109152802, now seen corresponding path program 1 times [2024-11-08 16:38:40,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:40,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457472793] [2024-11-08 16:38:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:38:40,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:38:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:38:40,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:38:40,949 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:38:40,949 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-08 16:38:40,949 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2024-11-08 16:38:40,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2024-11-08 16:38:40,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2024-11-08 16:38:40,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2024-11-08 16:38:40,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2024-11-08 16:38:40,950 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2024-11-08 16:38:40,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2024-11-08 16:38:40,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2024-11-08 16:38:40,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2024-11-08 16:38:40,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2024-11-08 16:38:40,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2024-11-08 16:38:40,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2024-11-08 16:38:40,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2024-11-08 16:38:40,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2024-11-08 16:38:40,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2024-11-08 16:38:40,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2024-11-08 16:38:40,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2024-11-08 16:38:40,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2024-11-08 16:38:40,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2024-11-08 16:38:40,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2024-11-08 16:38:40,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2024-11-08 16:38:40,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2024-11-08 16:38:40,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2024-11-08 16:38:40,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2024-11-08 16:38:40,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2024-11-08 16:38:40,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2024-11-08 16:38:40,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2024-11-08 16:38:40,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2024-11-08 16:38:40,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:38:40,955 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 16:38:40,956 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:38:40,956 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 16:38:40,996 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 16:38:40,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 253 transitions, 533 flow [2024-11-08 16:38:41,062 INFO L124 PetriNetUnfolderBase]: 96/478 cut-off events. [2024-11-08 16:38:41,062 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 16:38:41,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 478 events. 96/478 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2298 event pairs, 1 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 331. Up to 16 conditions per place. [2024-11-08 16:38:41,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 253 transitions, 533 flow [2024-11-08 16:38:41,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 253 transitions, 533 flow [2024-11-08 16:38:41,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:38:41,076 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=PETRI_NET, 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;@c70a19d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:38:41,076 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-08 16:38:41,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:38:41,079 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-08 16:38:41,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:38:41,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:38:41,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:38:41,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2024-11-08 16:38:41,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2128257270, now seen corresponding path program 1 times [2024-11-08 16:38:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:41,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55701802] [2024-11-08 16:38:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:41,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:41,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55701802] [2024-11-08 16:38:41,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55701802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:41,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:41,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:38:41,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102998395] [2024-11-08 16:38:41,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:41,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:38:41,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:41,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:38:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:38:41,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 253 [2024-11-08 16:38:41,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 253 transitions, 533 flow. Second operand has 4 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 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) [2024-11-08 16:38:41,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:38:41,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 253 [2024-11-08 16:38:41,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand