./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.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_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/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_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/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_ba062c75-61ea-4774-a0a2-58ae15750f00/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 bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:02:54,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:02:55,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:02:55,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:02:55,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:02:55,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:02:55,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:02:55,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:02:55,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:02:55,093 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:02:55,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:02:55,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:02:55,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:02:55,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:02:55,098 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:02:55,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:02:55,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:02:55,099 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:02:55,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:02:55,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:02:55,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:02:55,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:02:55,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:02:55,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:02:55,106 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:02:55,106 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:02:55,106 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:02:55,106 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:02:55,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:02:55,107 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:02:55,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:02:55,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:02:55,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:02:55,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:02:55,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:02:55,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:02:55,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:02:55,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:02:55,114 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:02:55,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:02:55,115 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:02:55,115 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:02:55,116 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:02:55,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:02:55,117 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_ba062c75-61ea-4774-a0a2-58ae15750f00/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2024-11-08 17:02:55,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:02:55,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:02:55,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:02:55,550 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:02:55,550 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:02:55,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i Unable to find full path for "g++" [2024-11-08 17:02:58,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:02:58,477 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:02:58,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-08 17:02:58,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/data/5c8b917b8/46cd7f74896b4490853ca24b30b934ca/FLAG4a968fdca [2024-11-08 17:02:58,539 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/data/5c8b917b8/46cd7f74896b4490853ca24b30b934ca [2024-11-08 17:02:58,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:02:58,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:02:58,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:02:58,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:02:58,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:02:58,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:02:58" (1/1) ... [2024-11-08 17:02:58,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50045a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:58, skipping insertion in model container [2024-11-08 17:02:58,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:02:58" (1/1) ... [2024-11-08 17:02:58,652 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:02:59,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:02:59,557 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:02:59,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:02:59,751 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:02:59,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59 WrapperNode [2024-11-08 17:02:59,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:02:59,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:02:59,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:02:59,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:02:59,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,859 INFO L138 Inliner]: procedures = 272, calls = 108, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 346 [2024-11-08 17:02:59,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:02:59,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:02:59,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:02:59,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:02:59,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,883 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,920 INFO L175 MemorySlicer]: Split 84 memory accesses to 4 slices as follows [2, 5, 75, 2]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 60, 0]. The 7 writes are split as follows [0, 0, 6, 1]. [2024-11-08 17:02:59,924 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,971 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:02:59,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:02:59,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:02:59,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:02:59,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (1/1) ... [2024-11-08 17:02:59,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:03:00,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:00,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:03:00,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:03:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:03:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:03:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:03:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:03:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:03:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:03:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:03:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:03:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:03:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:03:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:03:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:03:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:03:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:03:00,082 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:03:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:03:00,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:03:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:03:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:03:00,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:03:00,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:03:00,087 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 17:03:00,349 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:03:00,352 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:03:01,165 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:03:01,166 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:03:01,908 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:03:01,908 INFO L316 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-08 17:03:01,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:03:01 BoogieIcfgContainer [2024-11-08 17:03:01,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:03:01,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:03:01,912 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:03:01,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:03:01,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:02:58" (1/3) ... [2024-11-08 17:03:01,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7029b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:03:01, skipping insertion in model container [2024-11-08 17:03:01,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:02:59" (2/3) ... [2024-11-08 17:03:01,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7029b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:03:01, skipping insertion in model container [2024-11-08 17:03:01,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:03:01" (3/3) ... [2024-11-08 17:03:01,921 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2024-11-08 17:03:01,945 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:03:01,946 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-08 17:03:01,946 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:03:02,068 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:03:02,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 177 transitions, 361 flow [2024-11-08 17:03:02,283 INFO L124 PetriNetUnfolderBase]: 68/278 cut-off events. [2024-11-08 17:03:02,284 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:03:02,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 278 events. 68/278 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1304 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 159. Up to 8 conditions per place. [2024-11-08 17:03:02,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 177 transitions, 361 flow [2024-11-08 17:03:02,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 176 transitions, 359 flow [2024-11-08 17:03:02,323 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:03:02,332 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;@5f473e13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:03:02,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-08 17:03:02,339 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:03:02,339 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 17:03:02,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:03:02,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:02,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:03:02,341 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 17:03:02,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash 28250979, now seen corresponding path program 1 times [2024-11-08 17:03:02,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:02,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324078400] [2024-11-08 17:03:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:02,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:02,968 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 17:03:02,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:02,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324078400] [2024-11-08 17:03:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324078400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:02,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:03:02,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:03:02,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29590820] [2024-11-08 17:03:02,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:02,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:03:02,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:03,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:03:03,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:03:03,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 177 [2024-11-08 17:03:03,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 176 transitions, 359 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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 17:03:03,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:03,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 177 [2024-11-08 17:03:03,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:03,942 INFO L124 PetriNetUnfolderBase]: 927/2894 cut-off events. [2024-11-08 17:03:03,942 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:03:03,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4596 conditions, 2894 events. 927/2894 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 23725 event pairs, 740 based on Foata normal form. 512/3066 useless extension candidates. Maximal degree in co-relation 4439. Up to 1695 conditions per place. [2024-11-08 17:03:03,976 INFO L140 encePairwiseOnDemand]: 140/177 looper letters, 68 selfloop transitions, 3 changer transitions 0/148 dead transitions. [2024-11-08 17:03:03,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 148 transitions, 445 flow [2024-11-08 17:03:03,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:03:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:03:03,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 413 transitions. [2024-11-08 17:03:03,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-08 17:03:04,001 INFO L175 Difference]: Start difference. First operand has 138 places, 176 transitions, 359 flow. Second operand 4 states and 413 transitions. [2024-11-08 17:03:04,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 148 transitions, 445 flow [2024-11-08 17:03:04,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 148 transitions, 445 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:03:04,014 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 325 flow [2024-11-08 17:03:04,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=325, PETRI_PLACES=143, PETRI_TRANSITIONS=148} [2024-11-08 17:03:04,026 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 5 predicate places. [2024-11-08 17:03:04,026 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 325 flow [2024-11-08 17:03:04,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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 17:03:04,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:04,030 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:03:04,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:03:04,031 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 17:03:04,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:04,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1524235403, now seen corresponding path program 1 times [2024-11-08 17:03:04,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:04,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094771856] [2024-11-08 17:03:04,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:04,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:04,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:04,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094771856] [2024-11-08 17:03:04,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094771856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:04,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168672791] [2024-11-08 17:03:04,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:04,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:04,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:04,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:04,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:03:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:04,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:03:04,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:04,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:03:04,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168672791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:04,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:03:04,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:03:04,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236749908] [2024-11-08 17:03:04,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:04,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:03:04,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:04,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:03:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:03:04,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 177 [2024-11-08 17:03:04,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 148 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 17:03:04,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:04,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 177 [2024-11-08 17:03:04,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:05,260 INFO L124 PetriNetUnfolderBase]: 927/2893 cut-off events. [2024-11-08 17:03:05,260 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 17:03:05,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4607 conditions, 2893 events. 927/2893 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 23741 event pairs, 740 based on Foata normal form. 1/2554 useless extension candidates. Maximal degree in co-relation 4588. Up to 1688 conditions per place. [2024-11-08 17:03:05,277 INFO L140 encePairwiseOnDemand]: 172/177 looper letters, 64 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-11-08 17:03:05,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 147 transitions, 461 flow [2024-11-08 17:03:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:03:05,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:03:05,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2024-11-08 17:03:05,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5018832391713748 [2024-11-08 17:03:05,282 INFO L175 Difference]: Start difference. First operand has 143 places, 148 transitions, 325 flow. Second operand 6 states and 533 transitions. [2024-11-08 17:03:05,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 147 transitions, 461 flow [2024-11-08 17:03:05,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 147 transitions, 459 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:03:05,287 INFO L231 Difference]: Finished difference. Result has 146 places, 147 transitions, 331 flow [2024-11-08 17:03:05,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=146, PETRI_TRANSITIONS=147} [2024-11-08 17:03:05,289 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 8 predicate places. [2024-11-08 17:03:05,289 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 147 transitions, 331 flow [2024-11-08 17:03:05,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 17:03:05,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:05,290 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 17:03:05,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:03:05,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:05,495 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 17:03:05,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash -6656272, now seen corresponding path program 1 times [2024-11-08 17:03:05,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:05,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877757055] [2024-11-08 17:03:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:05,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:03:05,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:05,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877757055] [2024-11-08 17:03:05,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877757055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:05,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:03:05,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:03:05,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648031926] [2024-11-08 17:03:05,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:05,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:03:05,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:05,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:03:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:03:05,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 177 [2024-11-08 17:03:05,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 147 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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 17:03:05,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:05,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 177 [2024-11-08 17:03:05,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:06,242 INFO L124 PetriNetUnfolderBase]: 926/2891 cut-off events. [2024-11-08 17:03:06,243 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 17:03:06,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4608 conditions, 2891 events. 926/2891 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 23741 event pairs, 740 based on Foata normal form. 2/2555 useless extension candidates. Maximal degree in co-relation 4582. Up to 1691 conditions per place. [2024-11-08 17:03:06,262 INFO L140 encePairwiseOnDemand]: 171/177 looper letters, 64 selfloop transitions, 6 changer transitions 0/146 dead transitions. [2024-11-08 17:03:06,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 146 transitions, 465 flow [2024-11-08 17:03:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:03:06,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:03:06,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2024-11-08 17:03:06,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5282485875706214 [2024-11-08 17:03:06,265 INFO L175 Difference]: Start difference. First operand has 146 places, 147 transitions, 331 flow. Second operand 4 states and 374 transitions. [2024-11-08 17:03:06,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 146 transitions, 465 flow [2024-11-08 17:03:06,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 146 transitions, 455 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 17:03:06,276 INFO L231 Difference]: Finished difference. Result has 145 places, 146 transitions, 333 flow [2024-11-08 17:03:06,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=333, PETRI_PLACES=145, PETRI_TRANSITIONS=146} [2024-11-08 17:03:06,278 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 7 predicate places. [2024-11-08 17:03:06,278 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 146 transitions, 333 flow [2024-11-08 17:03:06,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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 17:03:06,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:06,279 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:06,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:03:06,279 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 17:03:06,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:06,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1566527273, now seen corresponding path program 1 times [2024-11-08 17:03:06,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:06,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273107123] [2024-11-08 17:03:06,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:06,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:06,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273107123] [2024-11-08 17:03:06,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273107123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:06,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028689202] [2024-11-08 17:03:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:06,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:06,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:06,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:06,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:03:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:06,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:03:06,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:06,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:06,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:03:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:06,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028689202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:03:06,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:03:06,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 17:03:06,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618533874] [2024-11-08 17:03:06,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:03:06,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:03:06,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:06,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:03:06,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:03:06,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 177 [2024-11-08 17:03:06,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 146 transitions, 333 flow. Second operand has 10 states, 10 states have (on average 77.7) internal successors, (777), 10 states have internal predecessors, (777), 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 17:03:06,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:06,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 177 [2024-11-08 17:03:06,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:07,470 INFO L124 PetriNetUnfolderBase]: 926/2896 cut-off events. [2024-11-08 17:03:07,471 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-08 17:03:07,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4629 conditions, 2896 events. 926/2896 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 23799 event pairs, 740 based on Foata normal form. 2/2560 useless extension candidates. Maximal degree in co-relation 4574. Up to 1690 conditions per place. [2024-11-08 17:03:07,493 INFO L140 encePairwiseOnDemand]: 172/177 looper letters, 67 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2024-11-08 17:03:07,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 150 transitions, 506 flow [2024-11-08 17:03:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:03:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:03:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 608 transitions. [2024-11-08 17:03:07,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4907183212267958 [2024-11-08 17:03:07,497 INFO L175 Difference]: Start difference. First operand has 145 places, 146 transitions, 333 flow. Second operand 7 states and 608 transitions. [2024-11-08 17:03:07,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 150 transitions, 506 flow [2024-11-08 17:03:07,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 150 transitions, 493 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:03:07,502 INFO L231 Difference]: Finished difference. Result has 152 places, 149 transitions, 371 flow [2024-11-08 17:03:07,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=371, PETRI_PLACES=152, PETRI_TRANSITIONS=149} [2024-11-08 17:03:07,504 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 14 predicate places. [2024-11-08 17:03:07,504 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 149 transitions, 371 flow [2024-11-08 17:03:07,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.7) internal successors, (777), 10 states have internal predecessors, (777), 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 17:03:07,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:07,506 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:07,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:03:07,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:07,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 17:03:07,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:07,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2105242189, now seen corresponding path program 2 times [2024-11-08 17:03:07,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:07,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736326081] [2024-11-08 17:03:07,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:07,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 17:03:07,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:07,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736326081] [2024-11-08 17:03:07,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736326081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:07,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:03:07,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:03:07,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43783160] [2024-11-08 17:03:07,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:07,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:03:07,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:07,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:03:07,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:03:07,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 177 [2024-11-08 17:03:07,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 149 transitions, 371 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 17:03:07,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:07,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 177 [2024-11-08 17:03:07,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:08,550 INFO L124 PetriNetUnfolderBase]: 950/2671 cut-off events. [2024-11-08 17:03:08,551 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-08 17:03:08,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4429 conditions, 2671 events. 950/2671 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 20730 event pairs, 0 based on Foata normal form. 22/2434 useless extension candidates. Maximal degree in co-relation 4368. Up to 1647 conditions per place. [2024-11-08 17:03:08,574 INFO L140 encePairwiseOnDemand]: 170/177 looper letters, 112 selfloop transitions, 3 changer transitions 0/190 dead transitions. [2024-11-08 17:03:08,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 190 transitions, 683 flow [2024-11-08 17:03:08,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:03:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:03:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 419 transitions. [2024-11-08 17:03:08,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5918079096045198 [2024-11-08 17:03:08,577 INFO L175 Difference]: Start difference. First operand has 152 places, 149 transitions, 371 flow. Second operand 4 states and 419 transitions. [2024-11-08 17:03:08,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 190 transitions, 683 flow [2024-11-08 17:03:08,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 190 transitions, 677 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 17:03:08,589 INFO L231 Difference]: Finished difference. Result has 152 places, 147 transitions, 373 flow [2024-11-08 17:03:08,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=373, PETRI_PLACES=152, PETRI_TRANSITIONS=147} [2024-11-08 17:03:08,591 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 14 predicate places. [2024-11-08 17:03:08,592 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 147 transitions, 373 flow [2024-11-08 17:03:08,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 17:03:08,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:08,594 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:08,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:03:08,594 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 17:03:08,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1805062680, now seen corresponding path program 1 times [2024-11-08 17:03:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:08,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114880133] [2024-11-08 17:03:08,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:08,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:08,863 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:03:08,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:08,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114880133] [2024-11-08 17:03:08,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114880133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692682119] [2024-11-08 17:03:08,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:08,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:08,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:08,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:08,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:03:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:09,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:03:09,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:03:09,086 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:03:09,237 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:03:09,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692682119] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:03:09,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:03:09,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 17:03:09,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157781862] [2024-11-08 17:03:09,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:03:09,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:03:09,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:09,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:03:09,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:03:09,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 177 [2024-11-08 17:03:09,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 147 transitions, 373 flow. Second operand has 18 states, 18 states have (on average 77.66666666666667) internal successors, (1398), 18 states have internal predecessors, (1398), 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 17:03:09,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:09,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 177 [2024-11-08 17:03:09,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:10,306 INFO L124 PetriNetUnfolderBase]: 915/2835 cut-off events. [2024-11-08 17:03:10,306 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-08 17:03:10,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4612 conditions, 2835 events. 915/2835 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 22926 event pairs, 740 based on Foata normal form. 4/2533 useless extension candidates. Maximal degree in co-relation 4480. Up to 1645 conditions per place. [2024-11-08 17:03:10,332 INFO L140 encePairwiseOnDemand]: 172/177 looper letters, 71 selfloop transitions, 15 changer transitions 0/160 dead transitions. [2024-11-08 17:03:10,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 160 transitions, 655 flow [2024-11-08 17:03:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:03:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:03:10,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1230 transitions. [2024-11-08 17:03:10,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4632768361581921 [2024-11-08 17:03:10,342 INFO L175 Difference]: Start difference. First operand has 152 places, 147 transitions, 373 flow. Second operand 15 states and 1230 transitions. [2024-11-08 17:03:10,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 160 transitions, 655 flow [2024-11-08 17:03:10,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 160 transitions, 649 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:03:10,351 INFO L231 Difference]: Finished difference. Result has 168 places, 156 transitions, 501 flow [2024-11-08 17:03:10,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=501, PETRI_PLACES=168, PETRI_TRANSITIONS=156} [2024-11-08 17:03:10,354 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 30 predicate places. [2024-11-08 17:03:10,354 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 156 transitions, 501 flow [2024-11-08 17:03:10,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 77.66666666666667) internal successors, (1398), 18 states have internal predecessors, (1398), 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 17:03:10,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:10,357 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:10,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 17:03:10,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:10,562 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 17:03:10,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:10,563 INFO L85 PathProgramCache]: Analyzing trace with hash -2012961744, now seen corresponding path program 2 times [2024-11-08 17:03:10,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:10,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536334247] [2024-11-08 17:03:10,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:10,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:11,091 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:03:11,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:11,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536334247] [2024-11-08 17:03:11,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536334247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:11,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120204416] [2024-11-08 17:03:11,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:03:11,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:11,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:11,096 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:11,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:03:11,263 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:03:11,263 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:03:11,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:03:11,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:03:11,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:03:11,692 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:03:11,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120204416] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:03:11,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:03:11,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 17:03:11,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115693053] [2024-11-08 17:03:11,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:03:11,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:03:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:11,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:03:11,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:03:11,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 177 [2024-11-08 17:03:11,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 156 transitions, 501 flow. Second operand has 23 states, 23 states have (on average 77.69565217391305) internal successors, (1787), 23 states have internal predecessors, (1787), 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 17:03:11,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:11,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 177 [2024-11-08 17:03:11,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:12,778 INFO L124 PetriNetUnfolderBase]: 915/2847 cut-off events. [2024-11-08 17:03:12,778 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-08 17:03:12,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4689 conditions, 2847 events. 915/2847 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 22948 event pairs, 740 based on Foata normal form. 3/2544 useless extension candidates. Maximal degree in co-relation 4461. Up to 1645 conditions per place. [2024-11-08 17:03:12,812 INFO L140 encePairwiseOnDemand]: 172/177 looper letters, 74 selfloop transitions, 21 changer transitions 0/169 dead transitions. [2024-11-08 17:03:12,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 169 transitions, 835 flow [2024-11-08 17:03:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 17:03:12,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 17:03:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1694 transitions. [2024-11-08 17:03:12,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.455743879472693 [2024-11-08 17:03:12,822 INFO L175 Difference]: Start difference. First operand has 168 places, 156 transitions, 501 flow. Second operand 21 states and 1694 transitions. [2024-11-08 17:03:12,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 169 transitions, 835 flow [2024-11-08 17:03:12,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 169 transitions, 795 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-08 17:03:12,829 INFO L231 Difference]: Finished difference. Result has 188 places, 163 transitions, 607 flow [2024-11-08 17:03:12,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=607, PETRI_PLACES=188, PETRI_TRANSITIONS=163} [2024-11-08 17:03:12,831 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 50 predicate places. [2024-11-08 17:03:12,831 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 163 transitions, 607 flow [2024-11-08 17:03:12,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 77.69565217391305) internal successors, (1787), 23 states have internal predecessors, (1787), 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 17:03:12,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:12,833 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:12,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:03:13,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:13,038 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 17:03:13,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:13,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1044969882, now seen corresponding path program 3 times [2024-11-08 17:03:13,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:13,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475721124] [2024-11-08 17:03:13,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:13,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:03:13,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:03:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:03:13,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:03:13,146 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:03:13,147 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-08 17:03:13,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2024-11-08 17:03:13,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2024-11-08 17:03:13,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2024-11-08 17:03:13,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2024-11-08 17:03:13,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2024-11-08 17:03:13,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2024-11-08 17:03:13,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2024-11-08 17:03:13,152 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2024-11-08 17:03:13,152 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2024-11-08 17:03:13,152 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2024-11-08 17:03:13,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2024-11-08 17:03:13,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2024-11-08 17:03:13,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2024-11-08 17:03:13,153 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2024-11-08 17:03:13,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2024-11-08 17:03:13,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2024-11-08 17:03:13,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2024-11-08 17:03:13,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2024-11-08 17:03:13,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2024-11-08 17:03:13,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2024-11-08 17:03:13,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2024-11-08 17:03:13,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2024-11-08 17:03:13,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2024-11-08 17:03:13,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2024-11-08 17:03:13,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2024-11-08 17:03:13,156 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2024-11-08 17:03:13,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2024-11-08 17:03:13,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2024-11-08 17:03:13,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:03:13,157 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-08 17:03:13,161 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:03:13,161 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:03:13,206 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:03:13,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 232 transitions, 480 flow [2024-11-08 17:03:13,298 INFO L124 PetriNetUnfolderBase]: 110/456 cut-off events. [2024-11-08 17:03:13,298 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:03:13,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 456 events. 110/456 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2395 event pairs, 0 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 280. Up to 12 conditions per place. [2024-11-08 17:03:13,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 232 transitions, 480 flow [2024-11-08 17:03:13,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 232 transitions, 480 flow [2024-11-08 17:03:13,310 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:03:13,311 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;@5f473e13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:03:13,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-08 17:03:13,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:03:13,315 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 17:03:13,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:03:13,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:13,315 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:03:13,315 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-08 17:03:13,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash 35392867, now seen corresponding path program 1 times [2024-11-08 17:03:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591761995] [2024-11-08 17:03:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:13,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:13,372 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 17:03:13,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:13,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591761995] [2024-11-08 17:03:13,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591761995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:13,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:03:13,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:03:13,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214413712] [2024-11-08 17:03:13,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:13,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:03:13,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:13,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:03:13,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:03:13,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 232 [2024-11-08 17:03:13,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 232 transitions, 480 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 17:03:13,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:13,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 232 [2024-11-08 17:03:13,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:24,676 INFO L124 PetriNetUnfolderBase]: 37857/80995 cut-off events. [2024-11-08 17:03:24,676 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2024-11-08 17:03:24,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135378 conditions, 80995 events. 37857/80995 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 2414. Compared 931770 event pairs, 32342 based on Foata normal form. 16318/88937 useless extension candidates. Maximal degree in co-relation 100382. Up to 54269 conditions per place. [2024-11-08 17:03:25,255 INFO L140 encePairwiseOnDemand]: 185/232 looper letters, 92 selfloop transitions, 3 changer transitions 0/194 dead transitions. [2024-11-08 17:03:25,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 194 transitions, 594 flow [2024-11-08 17:03:25,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:03:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:03:25,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 535 transitions. [2024-11-08 17:03:25,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5765086206896551 [2024-11-08 17:03:25,260 INFO L175 Difference]: Start difference. First operand has 181 places, 232 transitions, 480 flow. Second operand 4 states and 535 transitions. [2024-11-08 17:03:25,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 194 transitions, 594 flow [2024-11-08 17:03:25,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 194 transitions, 594 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:03:25,273 INFO L231 Difference]: Finished difference. Result has 186 places, 194 transitions, 426 flow [2024-11-08 17:03:25,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=426, PETRI_PLACES=186, PETRI_TRANSITIONS=194} [2024-11-08 17:03:25,278 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 5 predicate places. [2024-11-08 17:03:25,279 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 194 transitions, 426 flow [2024-11-08 17:03:25,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 17:03:25,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:25,279 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:03:25,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:03:25,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-08 17:03:25,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:25,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1391654773, now seen corresponding path program 1 times [2024-11-08 17:03:25,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:25,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370998056] [2024-11-08 17:03:25,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:25,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:25,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:25,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370998056] [2024-11-08 17:03:25,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370998056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:25,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386376851] [2024-11-08 17:03:25,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:25,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:25,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:25,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:25,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:03:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:25,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:03:25,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:25,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:25,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:03:25,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386376851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:25,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:03:25,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:03:25,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116949829] [2024-11-08 17:03:25,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:25,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:03:25,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:25,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:03:25,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:03:25,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 232 [2024-11-08 17:03:25,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 194 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 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 17:03:25,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:25,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 232 [2024-11-08 17:03:25,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:35,310 INFO L124 PetriNetUnfolderBase]: 37857/80994 cut-off events. [2024-11-08 17:03:35,310 INFO L125 PetriNetUnfolderBase]: For 187/187 co-relation queries the response was YES. [2024-11-08 17:03:35,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135389 conditions, 80994 events. 37857/80994 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 2414. Compared 931448 event pairs, 32342 based on Foata normal form. 1/72619 useless extension candidates. Maximal degree in co-relation 135369. Up to 54262 conditions per place. [2024-11-08 17:03:36,024 INFO L140 encePairwiseOnDemand]: 227/232 looper letters, 88 selfloop transitions, 6 changer transitions 0/193 dead transitions. [2024-11-08 17:03:36,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 193 transitions, 610 flow [2024-11-08 17:03:36,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:03:36,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:03:36,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 689 transitions. [2024-11-08 17:03:36,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4949712643678161 [2024-11-08 17:03:36,030 INFO L175 Difference]: Start difference. First operand has 186 places, 194 transitions, 426 flow. Second operand 6 states and 689 transitions. [2024-11-08 17:03:36,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 193 transitions, 610 flow [2024-11-08 17:03:36,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 193 transitions, 608 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:03:36,038 INFO L231 Difference]: Finished difference. Result has 189 places, 193 transitions, 432 flow [2024-11-08 17:03:36,039 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=432, PETRI_PLACES=189, PETRI_TRANSITIONS=193} [2024-11-08 17:03:36,040 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 8 predicate places. [2024-11-08 17:03:36,040 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 193 transitions, 432 flow [2024-11-08 17:03:36,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 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 17:03:36,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:36,042 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 17:03:36,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:03:36,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 17:03:36,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-08 17:03:36,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:36,248 INFO L85 PathProgramCache]: Analyzing trace with hash 191626200, now seen corresponding path program 1 times [2024-11-08 17:03:36,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:36,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349859080] [2024-11-08 17:03:36,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:36,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:03:36,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:36,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349859080] [2024-11-08 17:03:36,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349859080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:36,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:03:36,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:03:36,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978437250] [2024-11-08 17:03:36,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:36,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:03:36,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:36,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:03:36,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:03:36,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 232 [2024-11-08 17:03:36,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 193 transitions, 432 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 17:03:36,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:36,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 232 [2024-11-08 17:03:36,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:44,580 INFO L124 PetriNetUnfolderBase]: 37856/80992 cut-off events. [2024-11-08 17:03:44,580 INFO L125 PetriNetUnfolderBase]: For 192/192 co-relation queries the response was YES. [2024-11-08 17:03:44,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135390 conditions, 80992 events. 37856/80992 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 2414. Compared 931800 event pairs, 32342 based on Foata normal form. 2/72620 useless extension candidates. Maximal degree in co-relation 135363. Up to 54265 conditions per place. [2024-11-08 17:03:45,027 INFO L140 encePairwiseOnDemand]: 226/232 looper letters, 88 selfloop transitions, 6 changer transitions 0/192 dead transitions. [2024-11-08 17:03:45,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 192 transitions, 614 flow [2024-11-08 17:03:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:03:45,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:03:45,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 486 transitions. [2024-11-08 17:03:45,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5237068965517241 [2024-11-08 17:03:45,030 INFO L175 Difference]: Start difference. First operand has 189 places, 193 transitions, 432 flow. Second operand 4 states and 486 transitions. [2024-11-08 17:03:45,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 192 transitions, 614 flow [2024-11-08 17:03:45,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 192 transitions, 604 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 17:03:45,036 INFO L231 Difference]: Finished difference. Result has 188 places, 192 transitions, 434 flow [2024-11-08 17:03:45,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=434, PETRI_PLACES=188, PETRI_TRANSITIONS=192} [2024-11-08 17:03:45,037 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 7 predicate places. [2024-11-08 17:03:45,037 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 192 transitions, 434 flow [2024-11-08 17:03:45,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 17:03:45,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:45,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:45,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:03:45,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-08 17:03:45,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:45,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1275067362, now seen corresponding path program 1 times [2024-11-08 17:03:45,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:45,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164649262] [2024-11-08 17:03:45,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:45,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:45,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:45,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164649262] [2024-11-08 17:03:45,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164649262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:45,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015045934] [2024-11-08 17:03:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:45,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:45,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:45,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:45,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:03:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:45,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:03:45,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:45,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:03:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:03:45,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015045934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:03:45,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:03:45,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 17:03:45,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791769430] [2024-11-08 17:03:45,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:03:45,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:03:45,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:45,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:03:45,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:03:45,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 232 [2024-11-08 17:03:45,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 192 transitions, 434 flow. Second operand has 10 states, 10 states have (on average 99.7) internal successors, (997), 10 states have internal predecessors, (997), 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 17:03:45,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:45,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 232 [2024-11-08 17:03:45,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:03:54,212 INFO L124 PetriNetUnfolderBase]: 37856/80997 cut-off events. [2024-11-08 17:03:54,212 INFO L125 PetriNetUnfolderBase]: For 202/202 co-relation queries the response was YES. [2024-11-08 17:03:54,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135411 conditions, 80997 events. 37856/80997 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 2423. Compared 932301 event pairs, 32342 based on Foata normal form. 2/72625 useless extension candidates. Maximal degree in co-relation 135355. Up to 54264 conditions per place. [2024-11-08 17:03:54,881 INFO L140 encePairwiseOnDemand]: 227/232 looper letters, 91 selfloop transitions, 7 changer transitions 0/196 dead transitions. [2024-11-08 17:03:54,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 196 transitions, 655 flow [2024-11-08 17:03:54,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:03:54,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:03:54,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 786 transitions. [2024-11-08 17:03:54,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4839901477832512 [2024-11-08 17:03:54,885 INFO L175 Difference]: Start difference. First operand has 188 places, 192 transitions, 434 flow. Second operand 7 states and 786 transitions. [2024-11-08 17:03:54,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 196 transitions, 655 flow [2024-11-08 17:03:54,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 196 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:03:54,889 INFO L231 Difference]: Finished difference. Result has 195 places, 195 transitions, 472 flow [2024-11-08 17:03:54,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=472, PETRI_PLACES=195, PETRI_TRANSITIONS=195} [2024-11-08 17:03:54,890 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 14 predicate places. [2024-11-08 17:03:54,890 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 195 transitions, 472 flow [2024-11-08 17:03:54,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.7) internal successors, (997), 10 states have internal predecessors, (997), 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 17:03:54,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:03:54,891 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:54,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 17:03:55,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba062c75-61ea-4774-a0a2-58ae15750f00/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 17:03:55,092 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-08 17:03:55,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash 303766338, now seen corresponding path program 2 times [2024-11-08 17:03:55,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:55,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238522673] [2024-11-08 17:03:55,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:55,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 17:03:55,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:55,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238522673] [2024-11-08 17:03:55,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238522673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:03:55,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:03:55,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:03:55,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98606429] [2024-11-08 17:03:55,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:03:55,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:03:55,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:55,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:03:55,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:03:55,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 232 [2024-11-08 17:03:55,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 195 transitions, 472 flow. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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 17:03:55,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:03:55,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 232 [2024-11-08 17:03:55,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand