./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/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_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/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_7a8ee90d-b352-4523-9563-ee6b7d164a10/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 0f0e249de6560bdff430500b6d1ad159bf4a19253ccf183d061fafc41fe4114b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:30:01,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:30:01,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:30:01,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:30:01,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:30:01,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:30:01,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:30:01,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:30:01,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:30:01,522 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:30:01,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:30:01,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:30:01,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:30:01,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:30:01,525 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:30:01,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:30:01,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:30:01,526 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:30:01,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:30:01,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:30:01,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:30:01,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:30:01,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:30:01,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:30:01,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:30:01,534 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:30:01,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:30:01,534 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:30:01,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:30:01,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:30:01,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:30:01,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:30:01,540 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:30:01,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:30:01,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:30:01,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:30:01,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:30:01,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:30:01,543 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:30:01,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:30:01,543 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:30:01,544 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:30:01,544 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:30:01,544 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:30:01,544 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_7a8ee90d-b352-4523-9563-ee6b7d164a10/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f0e249de6560bdff430500b6d1ad159bf4a19253ccf183d061fafc41fe4114b [2024-11-08 16:30:01,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:30:01,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:30:01,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:30:01,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:30:01,889 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:30:01,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c Unable to find full path for "g++" [2024-11-08 16:30:04,174 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:30:04,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:30:04,415 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2024-11-08 16:30:04,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/data/758057891/b55aa034d8ba4a6d9e96ff1d8b97767c/FLAG4724e02e4 [2024-11-08 16:30:04,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/data/758057891/b55aa034d8ba4a6d9e96ff1d8b97767c [2024-11-08 16:30:04,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:30:04,790 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:30:04,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:30:04,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:30:04,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:30:04,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:30:04" (1/1) ... [2024-11-08 16:30:04,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69362c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:04, skipping insertion in model container [2024-11-08 16:30:04,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:30:04" (1/1) ... [2024-11-08 16:30:04,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:30:05,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:30:05,095 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:30:05,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:30:05,157 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:30:05,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05 WrapperNode [2024-11-08 16:30:05,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:30:05,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:30:05,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:30:05,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:30:05,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,210 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 12, calls inlined = 14, statements flattened = 195 [2024-11-08 16:30:05,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:30:05,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:30:05,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:30:05,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:30:05,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,228 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,248 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-08 16:30:05,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:30:05,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:30:05,272 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:30:05,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:30:05,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (1/1) ... [2024-11-08 16:30:05,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:30:05,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:05,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:30:05,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:30:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:30:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 16:30:05,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 16:30:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 16:30:05,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 16:30:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:30:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:30:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:30:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:30:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 16:30:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 16:30:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:30:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:30:05,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:30:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:30:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:30:05,358 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:30:05,502 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:30:05,505 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:30:05,983 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:30:05,983 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:30:06,359 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:30:06,359 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:30:06,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:30:06 BoogieIcfgContainer [2024-11-08 16:30:06,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:30:06,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:30:06,363 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:30:06,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:30:06,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:30:04" (1/3) ... [2024-11-08 16:30:06,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c679ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:30:06, skipping insertion in model container [2024-11-08 16:30:06,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:30:05" (2/3) ... [2024-11-08 16:30:06,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c679ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:30:06, skipping insertion in model container [2024-11-08 16:30:06,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:30:06" (3/3) ... [2024-11-08 16:30:06,370 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2024-11-08 16:30:06,390 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:30:06,391 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-08 16:30:06,391 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:30:06,463 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 16:30:06,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 55 transitions, 124 flow [2024-11-08 16:30:06,545 INFO L124 PetriNetUnfolderBase]: 9/53 cut-off events. [2024-11-08 16:30:06,545 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 16:30:06,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 53 events. 9/53 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 121 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-08 16:30:06,549 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 55 transitions, 124 flow [2024-11-08 16:30:06,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 51 transitions, 111 flow [2024-11-08 16:30:06,563 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:30:06,571 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;@52789e36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:30:06,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-08 16:30:06,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:30:06,578 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 16:30:06,578 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:30:06,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:06,579 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 16:30:06,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:06,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:06,586 INFO L85 PathProgramCache]: Analyzing trace with hash 18644168, now seen corresponding path program 1 times [2024-11-08 16:30:06,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:06,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060839273] [2024-11-08 16:30:06,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:06,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:06,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:06,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060839273] [2024-11-08 16:30:06,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060839273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:06,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:06,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:30:06,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717054981] [2024-11-08 16:30:06,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:06,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:30:06,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:07,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:30:07,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:30:07,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-08 16:30:07,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 51 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:07,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:07,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-08 16:30:07,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:07,370 INFO L124 PetriNetUnfolderBase]: 273/530 cut-off events. [2024-11-08 16:30:07,370 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-08 16:30:07,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 530 events. 273/530 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2493 event pairs, 142 based on Foata normal form. 2/352 useless extension candidates. Maximal degree in co-relation 841. Up to 368 conditions per place. [2024-11-08 16:30:07,381 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 29 selfloop transitions, 7 changer transitions 0/55 dead transitions. [2024-11-08 16:30:07,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 55 transitions, 191 flow [2024-11-08 16:30:07,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:30:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:30:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-11-08 16:30:07,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5727272727272728 [2024-11-08 16:30:07,397 INFO L175 Difference]: Start difference. First operand has 49 places, 51 transitions, 111 flow. Second operand 4 states and 126 transitions. [2024-11-08 16:30:07,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 55 transitions, 191 flow [2024-11-08 16:30:07,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 186 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 16:30:07,403 INFO L231 Difference]: Finished difference. Result has 50 places, 55 transitions, 162 flow [2024-11-08 16:30:07,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=50, PETRI_TRANSITIONS=55} [2024-11-08 16:30:07,409 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-11-08 16:30:07,409 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 55 transitions, 162 flow [2024-11-08 16:30:07,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:07,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:07,410 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 16:30:07,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:30:07,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:07,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:07,411 INFO L85 PathProgramCache]: Analyzing trace with hash -225910563, now seen corresponding path program 1 times [2024-11-08 16:30:07,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:07,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779943653] [2024-11-08 16:30:07,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:07,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:07,588 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 16:30:07,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:07,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779943653] [2024-11-08 16:30:07,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779943653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:07,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509295910] [2024-11-08 16:30:07,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:07,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:07,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:07,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:07,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:30:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:07,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:30:07,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:07,797 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 16:30:07,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:30:07,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509295910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:07,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:30:07,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 16:30:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324811840] [2024-11-08 16:30:07,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:07,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:30:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:07,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:30:07,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:30:07,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-08 16:30:07,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 55 transitions, 162 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:07,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:07,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-08 16:30:07,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:08,141 INFO L124 PetriNetUnfolderBase]: 273/528 cut-off events. [2024-11-08 16:30:08,141 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-08 16:30:08,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 946 conditions, 528 events. 273/528 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2491 event pairs, 142 based on Foata normal form. 2/350 useless extension candidates. Maximal degree in co-relation 890. Up to 358 conditions per place. [2024-11-08 16:30:08,147 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 22 selfloop transitions, 12 changer transitions 0/53 dead transitions. [2024-11-08 16:30:08,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 222 flow [2024-11-08 16:30:08,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:30:08,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:30:08,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-11-08 16:30:08,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2024-11-08 16:30:08,150 INFO L175 Difference]: Start difference. First operand has 50 places, 55 transitions, 162 flow. Second operand 6 states and 162 transitions. [2024-11-08 16:30:08,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 222 flow [2024-11-08 16:30:08,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 53 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:30:08,153 INFO L231 Difference]: Finished difference. Result has 53 places, 53 transitions, 178 flow [2024-11-08 16:30:08,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=53, PETRI_TRANSITIONS=53} [2024-11-08 16:30:08,154 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2024-11-08 16:30:08,155 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 53 transitions, 178 flow [2024-11-08 16:30:08,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:08,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:08,155 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 16:30:08,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:30:08,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:08,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:08,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:08,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1586707701, now seen corresponding path program 1 times [2024-11-08 16:30:08,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:08,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318238615] [2024-11-08 16:30:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:08,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:08,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:08,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318238615] [2024-11-08 16:30:08,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318238615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:08,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360873508] [2024-11-08 16:30:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:08,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:08,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:08,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:08,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:30:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:08,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:30:08,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:08,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:30:08,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:08,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360873508] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:30:08,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:30:08,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-08 16:30:08,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854451221] [2024-11-08 16:30:08,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:30:08,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:30:08,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:08,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:30:08,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:30:08,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-08 16:30:08,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 178 flow. Second operand has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:08,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:08,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-08 16:30:08,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:09,257 INFO L124 PetriNetUnfolderBase]: 285/570 cut-off events. [2024-11-08 16:30:09,257 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-11-08 16:30:09,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 570 events. 285/570 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2782 event pairs, 142 based on Foata normal form. 6/392 useless extension candidates. Maximal degree in co-relation 892. Up to 369 conditions per place. [2024-11-08 16:30:09,264 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 27 selfloop transitions, 25 changer transitions 0/71 dead transitions. [2024-11-08 16:30:09,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 396 flow [2024-11-08 16:30:09,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:30:09,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 16:30:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 268 transitions. [2024-11-08 16:30:09,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48727272727272725 [2024-11-08 16:30:09,270 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 178 flow. Second operand 10 states and 268 transitions. [2024-11-08 16:30:09,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 396 flow [2024-11-08 16:30:09,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 71 transitions, 338 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-08 16:30:09,276 INFO L231 Difference]: Finished difference. Result has 60 places, 71 transitions, 318 flow [2024-11-08 16:30:09,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=318, PETRI_PLACES=60, PETRI_TRANSITIONS=71} [2024-11-08 16:30:09,277 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2024-11-08 16:30:09,278 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 71 transitions, 318 flow [2024-11-08 16:30:09,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:09,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:09,279 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:09,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:30:09,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:09,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:09,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:09,481 INFO L85 PathProgramCache]: Analyzing trace with hash -615708275, now seen corresponding path program 1 times [2024-11-08 16:30:09,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:09,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365791747] [2024-11-08 16:30:09,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:09,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:09,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:09,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:09,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365791747] [2024-11-08 16:30:09,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365791747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:09,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:09,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:30:09,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970073036] [2024-11-08 16:30:09,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:09,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:30:09,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:09,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:30:09,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:30:09,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-08 16:30:09,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 71 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:09,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:09,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-08 16:30:09,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:09,922 INFO L124 PetriNetUnfolderBase]: 357/746 cut-off events. [2024-11-08 16:30:09,922 INFO L125 PetriNetUnfolderBase]: For 208/208 co-relation queries the response was YES. [2024-11-08 16:30:09,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1447 conditions, 746 events. 357/746 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3823 event pairs, 185 based on Foata normal form. 9/538 useless extension candidates. Maximal degree in co-relation 1336. Up to 402 conditions per place. [2024-11-08 16:30:09,930 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 80 selfloop transitions, 5 changer transitions 1/103 dead transitions. [2024-11-08 16:30:09,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 103 transitions, 631 flow [2024-11-08 16:30:09,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:30:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:30:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2024-11-08 16:30:09,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5890909090909091 [2024-11-08 16:30:09,932 INFO L175 Difference]: Start difference. First operand has 60 places, 71 transitions, 318 flow. Second operand 5 states and 162 transitions. [2024-11-08 16:30:09,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 103 transitions, 631 flow [2024-11-08 16:30:09,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 103 transitions, 597 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-08 16:30:09,943 INFO L231 Difference]: Finished difference. Result has 64 places, 73 transitions, 325 flow [2024-11-08 16:30:09,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=325, PETRI_PLACES=64, PETRI_TRANSITIONS=73} [2024-11-08 16:30:09,945 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 15 predicate places. [2024-11-08 16:30:09,945 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 73 transitions, 325 flow [2024-11-08 16:30:09,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:09,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:09,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:09,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:30:09,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:09,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash -615708242, now seen corresponding path program 1 times [2024-11-08 16:30:09,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:09,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805406466] [2024-11-08 16:30:09,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:09,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:10,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:10,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805406466] [2024-11-08 16:30:10,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805406466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:10,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:10,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:30:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902556502] [2024-11-08 16:30:10,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:10,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:10,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:10,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:10,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:10,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-08 16:30:10,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 73 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:10,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:10,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-08 16:30:10,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:10,183 INFO L124 PetriNetUnfolderBase]: 328/691 cut-off events. [2024-11-08 16:30:10,183 INFO L125 PetriNetUnfolderBase]: For 230/286 co-relation queries the response was YES. [2024-11-08 16:30:10,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 691 events. 328/691 cut-off events. For 230/286 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3523 event pairs, 164 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 1303. Up to 459 conditions per place. [2024-11-08 16:30:10,192 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 48 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2024-11-08 16:30:10,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 421 flow [2024-11-08 16:30:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:10,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:30:10,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-08 16:30:10,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6121212121212121 [2024-11-08 16:30:10,194 INFO L175 Difference]: Start difference. First operand has 64 places, 73 transitions, 325 flow. Second operand 3 states and 101 transitions. [2024-11-08 16:30:10,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 421 flow [2024-11-08 16:30:10,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 72 transitions, 417 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-08 16:30:10,202 INFO L231 Difference]: Finished difference. Result has 64 places, 72 transitions, 321 flow [2024-11-08 16:30:10,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=321, PETRI_PLACES=64, PETRI_TRANSITIONS=72} [2024-11-08 16:30:10,202 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 15 predicate places. [2024-11-08 16:30:10,203 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 72 transitions, 321 flow [2024-11-08 16:30:10,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:10,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:10,203 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:10,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:30:10,203 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:10,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:10,204 INFO L85 PathProgramCache]: Analyzing trace with hash -615708241, now seen corresponding path program 1 times [2024-11-08 16:30:10,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:10,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368254502] [2024-11-08 16:30:10,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:10,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:10,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368254502] [2024-11-08 16:30:10,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368254502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:10,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:30:10,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:30:10,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335533068] [2024-11-08 16:30:10,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:10,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:10,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:10,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:10,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:30:10,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-08 16:30:10,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 72 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:10,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:10,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-08 16:30:10,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:10,450 INFO L124 PetriNetUnfolderBase]: 484/944 cut-off events. [2024-11-08 16:30:10,450 INFO L125 PetriNetUnfolderBase]: For 246/302 co-relation queries the response was YES. [2024-11-08 16:30:10,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2018 conditions, 944 events. 484/944 cut-off events. For 246/302 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5244 event pairs, 124 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 2002. Up to 382 conditions per place. [2024-11-08 16:30:10,458 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 63 selfloop transitions, 2 changer transitions 0/88 dead transitions. [2024-11-08 16:30:10,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 88 transitions, 494 flow [2024-11-08 16:30:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:10,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:30:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2024-11-08 16:30:10,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7090909090909091 [2024-11-08 16:30:10,460 INFO L175 Difference]: Start difference. First operand has 64 places, 72 transitions, 321 flow. Second operand 3 states and 117 transitions. [2024-11-08 16:30:10,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 88 transitions, 494 flow [2024-11-08 16:30:10,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 88 transitions, 485 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:30:10,464 INFO L231 Difference]: Finished difference. Result has 65 places, 73 transitions, 324 flow [2024-11-08 16:30:10,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=65, PETRI_TRANSITIONS=73} [2024-11-08 16:30:10,465 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2024-11-08 16:30:10,465 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 73 transitions, 324 flow [2024-11-08 16:30:10,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:10,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:10,466 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:10,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:30:10,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:10,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash 861983704, now seen corresponding path program 1 times [2024-11-08 16:30:10,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369083702] [2024-11-08 16:30:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:10,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:10,638 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 16:30:10,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:10,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369083702] [2024-11-08 16:30:10,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369083702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:10,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063172125] [2024-11-08 16:30:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:10,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:10,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:10,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:10,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:30:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:10,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:30:10,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:30:10,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:30:10,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063172125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:10,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:30:10,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2024-11-08 16:30:10,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179914106] [2024-11-08 16:30:10,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:10,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:30:10,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:10,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:30:10,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:30:10,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-08 16:30:10,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 73 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:10,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:10,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-08 16:30:10,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:11,014 INFO L124 PetriNetUnfolderBase]: 497/1021 cut-off events. [2024-11-08 16:30:11,014 INFO L125 PetriNetUnfolderBase]: For 224/280 co-relation queries the response was YES. [2024-11-08 16:30:11,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2190 conditions, 1021 events. 497/1021 cut-off events. For 224/280 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5633 event pairs, 285 based on Foata normal form. 2/752 useless extension candidates. Maximal degree in co-relation 2173. Up to 738 conditions per place. [2024-11-08 16:30:11,022 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 49 selfloop transitions, 6 changer transitions 2/74 dead transitions. [2024-11-08 16:30:11,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 74 transitions, 438 flow [2024-11-08 16:30:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:30:11,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:30:11,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-11-08 16:30:11,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5363636363636364 [2024-11-08 16:30:11,024 INFO L175 Difference]: Start difference. First operand has 65 places, 73 transitions, 324 flow. Second operand 4 states and 118 transitions. [2024-11-08 16:30:11,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 74 transitions, 438 flow [2024-11-08 16:30:11,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 74 transitions, 436 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:30:11,027 INFO L231 Difference]: Finished difference. Result has 68 places, 72 transitions, 340 flow [2024-11-08 16:30:11,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=68, PETRI_TRANSITIONS=72} [2024-11-08 16:30:11,028 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 19 predicate places. [2024-11-08 16:30:11,028 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 72 transitions, 340 flow [2024-11-08 16:30:11,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:11,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:11,029 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:11,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 16:30:11,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:11,234 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:11,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:11,234 INFO L85 PathProgramCache]: Analyzing trace with hash 339769736, now seen corresponding path program 1 times [2024-11-08 16:30:11,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:11,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372868980] [2024-11-08 16:30:11,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:11,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:30:11,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:11,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372868980] [2024-11-08 16:30:11,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372868980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:11,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408339369] [2024-11-08 16:30:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:11,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:11,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:11,445 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:11,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:30:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:11,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:30:11,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:11,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:30:11,591 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:30:11,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408339369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:30:11,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:30:11,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-08 16:30:11,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915634094] [2024-11-08 16:30:11,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:30:11,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:30:11,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:11,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:30:11,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:30:11,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-08 16:30:11,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 72 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:11,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:11,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-08 16:30:11,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:11,750 INFO L124 PetriNetUnfolderBase]: 377/827 cut-off events. [2024-11-08 16:30:11,751 INFO L125 PetriNetUnfolderBase]: For 275/299 co-relation queries the response was YES. [2024-11-08 16:30:11,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1703 conditions, 827 events. 377/827 cut-off events. For 275/299 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4371 event pairs, 216 based on Foata normal form. 0/660 useless extension candidates. Maximal degree in co-relation 1685. Up to 554 conditions per place. [2024-11-08 16:30:11,758 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 46 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2024-11-08 16:30:11,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 426 flow [2024-11-08 16:30:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:30:11,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:30:11,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-08 16:30:11,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-08 16:30:11,760 INFO L175 Difference]: Start difference. First operand has 68 places, 72 transitions, 340 flow. Second operand 3 states and 100 transitions. [2024-11-08 16:30:11,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 426 flow [2024-11-08 16:30:11,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:30:11,765 INFO L231 Difference]: Finished difference. Result has 66 places, 70 transitions, 328 flow [2024-11-08 16:30:11,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=66, PETRI_TRANSITIONS=70} [2024-11-08 16:30:11,766 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 17 predicate places. [2024-11-08 16:30:11,766 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 70 transitions, 328 flow [2024-11-08 16:30:11,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:11,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:11,767 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:11,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:30:11,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:11,968 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:11,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:11,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1558132152, now seen corresponding path program 1 times [2024-11-08 16:30:11,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:11,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447077012] [2024-11-08 16:30:11,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:11,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:30:12,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:12,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447077012] [2024-11-08 16:30:12,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447077012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:12,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497844487] [2024-11-08 16:30:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:12,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:12,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:12,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:12,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:30:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:12,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 16:30:12,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:12,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:30:12,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:12,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497844487] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:30:12,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:30:12,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 14 [2024-11-08 16:30:12,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770350827] [2024-11-08 16:30:12,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:30:12,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 16:30:12,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:12,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 16:30:12,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:30:12,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-08 16:30:12,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 70 transitions, 328 flow. Second operand has 15 states, 15 states have (on average 15.066666666666666) internal successors, (226), 15 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:12,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:12,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-08 16:30:12,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:13,486 INFO L124 PetriNetUnfolderBase]: 924/1745 cut-off events. [2024-11-08 16:30:13,486 INFO L125 PetriNetUnfolderBase]: For 374/394 co-relation queries the response was YES. [2024-11-08 16:30:13,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3916 conditions, 1745 events. 924/1745 cut-off events. For 374/394 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 10024 event pairs, 188 based on Foata normal form. 0/1416 useless extension candidates. Maximal degree in co-relation 3897. Up to 280 conditions per place. [2024-11-08 16:30:13,500 INFO L140 encePairwiseOnDemand]: 39/55 looper letters, 83 selfloop transitions, 37 changer transitions 46/176 dead transitions. [2024-11-08 16:30:13,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 176 transitions, 1017 flow [2024-11-08 16:30:13,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:30:13,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 16:30:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 342 transitions. [2024-11-08 16:30:13,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3657754010695187 [2024-11-08 16:30:13,503 INFO L175 Difference]: Start difference. First operand has 66 places, 70 transitions, 328 flow. Second operand 17 states and 342 transitions. [2024-11-08 16:30:13,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 176 transitions, 1017 flow [2024-11-08 16:30:13,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 176 transitions, 1016 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:30:13,510 INFO L231 Difference]: Finished difference. Result has 86 places, 85 transitions, 537 flow [2024-11-08 16:30:13,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=537, PETRI_PLACES=86, PETRI_TRANSITIONS=85} [2024-11-08 16:30:13,511 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 37 predicate places. [2024-11-08 16:30:13,511 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 85 transitions, 537 flow [2024-11-08 16:30:13,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 15.066666666666666) internal successors, (226), 15 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:13,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:13,513 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-08 16:30:13,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:30:13,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 16:30:13,717 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:13,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:13,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1016256618, now seen corresponding path program 2 times [2024-11-08 16:30:13,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:13,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911941055] [2024-11-08 16:30:13,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:13,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:13,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:13,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911941055] [2024-11-08 16:30:13,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911941055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:13,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373267575] [2024-11-08 16:30:13,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:30:13,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:13,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:13,919 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:13,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:30:14,011 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:30:14,012 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:30:14,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:30:14,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 16:30:14,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:30:14,173 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 16:30:14,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373267575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:30:14,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:30:14,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 3, 3] total 13 [2024-11-08 16:30:14,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725698969] [2024-11-08 16:30:14,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:30:14,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 16:30:14,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:14,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 16:30:14,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:30:14,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 55 [2024-11-08 16:30:14,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 85 transitions, 537 flow. Second operand has 15 states, 15 states have (on average 16.533333333333335) internal successors, (248), 15 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:14,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:14,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 55 [2024-11-08 16:30:14,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:15,108 INFO L124 PetriNetUnfolderBase]: 659/1509 cut-off events. [2024-11-08 16:30:15,109 INFO L125 PetriNetUnfolderBase]: For 851/889 co-relation queries the response was YES. [2024-11-08 16:30:15,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 1509 events. 659/1509 cut-off events. For 851/889 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 9331 event pairs, 392 based on Foata normal form. 10/1262 useless extension candidates. Maximal degree in co-relation 3545. Up to 963 conditions per place. [2024-11-08 16:30:15,123 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 55 selfloop transitions, 54 changer transitions 1/127 dead transitions. [2024-11-08 16:30:15,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 127 transitions, 1022 flow [2024-11-08 16:30:15,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 16:30:15,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-08 16:30:15,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 498 transitions. [2024-11-08 16:30:15,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33535353535353535 [2024-11-08 16:30:15,128 INFO L175 Difference]: Start difference. First operand has 86 places, 85 transitions, 537 flow. Second operand 27 states and 498 transitions. [2024-11-08 16:30:15,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 127 transitions, 1022 flow [2024-11-08 16:30:15,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 127 transitions, 1000 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-08 16:30:15,137 INFO L231 Difference]: Finished difference. Result has 109 places, 102 transitions, 781 flow [2024-11-08 16:30:15,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=781, PETRI_PLACES=109, PETRI_TRANSITIONS=102} [2024-11-08 16:30:15,140 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 60 predicate places. [2024-11-08 16:30:15,141 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 102 transitions, 781 flow [2024-11-08 16:30:15,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.533333333333335) internal successors, (248), 15 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:15,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:15,142 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:15,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 16:30:15,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:15,346 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:15,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:15,348 INFO L85 PathProgramCache]: Analyzing trace with hash -931502495, now seen corresponding path program 2 times [2024-11-08 16:30:15,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:15,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177981312] [2024-11-08 16:30:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:15,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:30:15,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:15,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177981312] [2024-11-08 16:30:15,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177981312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:15,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821514754] [2024-11-08 16:30:15,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:30:15,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:15,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:15,448 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:15,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:30:15,546 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:30:15,546 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:30:15,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:30:15,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:30:15,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:30:15,682 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:30:15,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821514754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:30:15,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:30:15,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 5 [2024-11-08 16:30:15,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979959557] [2024-11-08 16:30:15,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:30:15,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:30:15,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:15,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:30:15,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:30:15,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-11-08 16:30:15,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 102 transitions, 781 flow. Second operand has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:15,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:15,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-11-08 16:30:15,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:16,306 INFO L124 PetriNetUnfolderBase]: 1063/2047 cut-off events. [2024-11-08 16:30:16,306 INFO L125 PetriNetUnfolderBase]: For 1356/1375 co-relation queries the response was YES. [2024-11-08 16:30:16,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5113 conditions, 2047 events. 1063/2047 cut-off events. For 1356/1375 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 12121 event pairs, 216 based on Foata normal form. 0/1837 useless extension candidates. Maximal degree in co-relation 5086. Up to 620 conditions per place. [2024-11-08 16:30:16,323 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 47 selfloop transitions, 1 changer transitions 97/156 dead transitions. [2024-11-08 16:30:16,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 156 transitions, 1185 flow [2024-11-08 16:30:16,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:30:16,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:30:16,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 242 transitions. [2024-11-08 16:30:16,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-08 16:30:16,325 INFO L175 Difference]: Start difference. First operand has 109 places, 102 transitions, 781 flow. Second operand 7 states and 242 transitions. [2024-11-08 16:30:16,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 156 transitions, 1185 flow [2024-11-08 16:30:16,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 156 transitions, 1015 flow, removed 32 selfloop flow, removed 13 redundant places. [2024-11-08 16:30:16,336 INFO L231 Difference]: Finished difference. Result has 101 places, 59 transitions, 462 flow [2024-11-08 16:30:16,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=462, PETRI_PLACES=101, PETRI_TRANSITIONS=59} [2024-11-08 16:30:16,337 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 52 predicate places. [2024-11-08 16:30:16,338 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 59 transitions, 462 flow [2024-11-08 16:30:16,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:16,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:16,338 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 6, 1, 1, 1, 1] [2024-11-08 16:30:16,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 16:30:16,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:16,539 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:16,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:16,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1567087436, now seen corresponding path program 1 times [2024-11-08 16:30:16,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:16,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586582470] [2024-11-08 16:30:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:16,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:16,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:16,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586582470] [2024-11-08 16:30:16,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586582470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:16,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23757982] [2024-11-08 16:30:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:16,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:16,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:16,990 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:16,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:30:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:17,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 16:30:17,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:17,209 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:17,209 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:30:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:17,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23757982] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:30:17,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:30:17,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2024-11-08 16:30:17,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538037798] [2024-11-08 16:30:17,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:30:17,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 16:30:17,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:17,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 16:30:17,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-11-08 16:30:17,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-08 16:30:17,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 59 transitions, 462 flow. Second operand has 32 states, 32 states have (on average 22.0625) internal successors, (706), 32 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:17,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:17,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-08 16:30:17,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:18,400 INFO L124 PetriNetUnfolderBase]: 31/365 cut-off events. [2024-11-08 16:30:18,400 INFO L125 PetriNetUnfolderBase]: For 1982/1982 co-relation queries the response was YES. [2024-11-08 16:30:18,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 365 events. 31/365 cut-off events. For 1982/1982 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1298 event pairs, 0 based on Foata normal form. 32/397 useless extension candidates. Maximal degree in co-relation 1314. Up to 91 conditions per place. [2024-11-08 16:30:18,403 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 8 selfloop transitions, 100 changer transitions 0/118 dead transitions. [2024-11-08 16:30:18,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 118 transitions, 1173 flow [2024-11-08 16:30:18,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 16:30:18,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-08 16:30:18,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 715 transitions. [2024-11-08 16:30:18,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-11-08 16:30:18,407 INFO L175 Difference]: Start difference. First operand has 101 places, 59 transitions, 462 flow. Second operand 30 states and 715 transitions. [2024-11-08 16:30:18,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 118 transitions, 1173 flow [2024-11-08 16:30:18,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 118 transitions, 1169 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 16:30:18,417 INFO L231 Difference]: Finished difference. Result has 100 places, 118 transitions, 1219 flow [2024-11-08 16:30:18,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1219, PETRI_PLACES=100, PETRI_TRANSITIONS=118} [2024-11-08 16:30:18,418 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 51 predicate places. [2024-11-08 16:30:18,418 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 118 transitions, 1219 flow [2024-11-08 16:30:18,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 22.0625) internal successors, (706), 32 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:18,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:30:18,419 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 14, 1, 1, 1, 1] [2024-11-08 16:30:18,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 16:30:18,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:18,624 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-08 16:30:18,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:30:18,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1076128564, now seen corresponding path program 2 times [2024-11-08 16:30:18,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:30:18,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664421148] [2024-11-08 16:30:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:30:18,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:30:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:30:19,899 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:30:19,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:30:19,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664421148] [2024-11-08 16:30:19,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664421148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:30:19,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854739201] [2024-11-08 16:30:19,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:30:19,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:30:19,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:30:19,904 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:30:19,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 16:30:20,012 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:30:20,012 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:30:20,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:30:20,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:30:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-08 16:30:20,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:30:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-08 16:30:20,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854739201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:30:20,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:30:20,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 4, 4] total 35 [2024-11-08 16:30:20,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918521850] [2024-11-08 16:30:20,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:30:20,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-08 16:30:20,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:30:20,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-08 16:30:20,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 16:30:20,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 55 [2024-11-08 16:30:20,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 118 transitions, 1219 flow. Second operand has 36 states, 36 states have (on average 16.583333333333332) internal successors, (597), 36 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:20,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:30:20,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 55 [2024-11-08 16:30:20,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:30:21,986 INFO L124 PetriNetUnfolderBase]: 34/392 cut-off events. [2024-11-08 16:30:21,987 INFO L125 PetriNetUnfolderBase]: For 2672/2672 co-relation queries the response was YES. [2024-11-08 16:30:21,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 392 events. 34/392 cut-off events. For 2672/2672 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1408 event pairs, 0 based on Foata normal form. 8/400 useless extension candidates. Maximal degree in co-relation 1740. Up to 103 conditions per place. [2024-11-08 16:30:21,989 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 0 selfloop transitions, 0 changer transitions 199/199 dead transitions. [2024-11-08 16:30:21,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 199 transitions, 2102 flow [2024-11-08 16:30:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-08 16:30:21,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-08 16:30:21,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 676 transitions. [2024-11-08 16:30:21,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3511688311688312 [2024-11-08 16:30:21,994 INFO L175 Difference]: Start difference. First operand has 100 places, 118 transitions, 1219 flow. Second operand 35 states and 676 transitions. [2024-11-08 16:30:21,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 199 transitions, 2102 flow [2024-11-08 16:30:22,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 199 transitions, 1906 flow, removed 20 selfloop flow, removed 24 redundant places. [2024-11-08 16:30:22,009 INFO L231 Difference]: Finished difference. Result has 109 places, 0 transitions, 0 flow [2024-11-08 16:30:22,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=1000, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=0, PETRI_PLACES=109, PETRI_TRANSITIONS=0} [2024-11-08 16:30:22,010 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 60 predicate places. [2024-11-08 16:30:22,010 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 0 transitions, 0 flow [2024-11-08 16:30:22,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 16.583333333333332) internal successors, (597), 36 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:30:22,016 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-08 16:30:22,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-08 16:30:22,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-08 16:30:22,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-08 16:30:22,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-08 16:30:22,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-08 16:30:22,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-08 16:30:22,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-08 16:30:22,019 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-08 16:30:22,019 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-08 16:30:22,019 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-11-08 16:30:22,019 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-11-08 16:30:22,020 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-08 16:30:22,020 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-08 16:30:22,020 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-08 16:30:22,020 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-08 16:30:22,020 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-08 16:30:22,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-08 16:30:22,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 16:30:22,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 16:30:22,226 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:30:22,231 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:30:22,231 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:30:22,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:30:22 BasicIcfg [2024-11-08 16:30:22,237 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:30:22,237 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:30:22,238 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:30:22,238 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:30:22,238 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:30:06" (3/4) ... [2024-11-08 16:30:22,241 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:30:22,244 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-08 16:30:22,244 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-08 16:30:22,251 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 135 nodes and edges [2024-11-08 16:30:22,252 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 16:30:22,252 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-08 16:30:22,253 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 16:30:22,368 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:30:22,369 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:30:22,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:30:22,370 INFO L158 Benchmark]: Toolchain (without parser) took 17580.28ms. Allocated memory was 130.0MB in the beginning and 276.8MB in the end (delta: 146.8MB). Free memory was 96.8MB in the beginning and 146.5MB in the end (delta: -49.8MB). Peak memory consumption was 99.9MB. Max. memory is 16.1GB. [2024-11-08 16:30:22,370 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 130.0MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:30:22,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.90ms. Allocated memory is still 130.0MB. Free memory was 96.5MB in the beginning and 82.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 16:30:22,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.27ms. Allocated memory is still 130.0MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:30:22,372 INFO L158 Benchmark]: Boogie Preprocessor took 59.45ms. Allocated memory is still 130.0MB. Free memory was 80.7MB in the beginning and 77.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:30:22,373 INFO L158 Benchmark]: RCFGBuilder took 1088.02ms. Allocated memory was 130.0MB in the beginning and 190.8MB in the end (delta: 60.8MB). Free memory was 77.9MB in the beginning and 130.1MB in the end (delta: -52.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2024-11-08 16:30:22,373 INFO L158 Benchmark]: TraceAbstraction took 15874.09ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 129.0MB in the beginning and 152.4MB in the end (delta: -23.4MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2024-11-08 16:30:22,374 INFO L158 Benchmark]: Witness Printer took 131.79ms. Allocated memory is still 276.8MB. Free memory was 152.4MB in the beginning and 146.5MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 16:30:22,376 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 130.0MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.90ms. Allocated memory is still 130.0MB. Free memory was 96.5MB in the beginning and 82.8MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.27ms. Allocated memory is still 130.0MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.45ms. Allocated memory is still 130.0MB. Free memory was 80.7MB in the beginning and 77.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1088.02ms. Allocated memory was 130.0MB in the beginning and 190.8MB in the end (delta: 60.8MB). Free memory was 77.9MB in the beginning and 130.1MB in the end (delta: -52.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15874.09ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 129.0MB in the beginning and 152.4MB in the end (delta: -23.4MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Witness Printer took 131.79ms. Allocated memory is still 276.8MB. Free memory was 152.4MB in the beginning and 146.5MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 73 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.7s, OverallIterations: 13, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1802 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1654 mSDsluCounter, 1025 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 978 mSDsCounter, 305 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2944 IncrementalHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 305 mSolverCounterUnsat, 47 mSDtfsCounter, 2944 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 559 GetRequests, 331 SyntacticMatches, 8 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1851 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1219occurred in iteration=12, InterpolantAutomatonStates: 154, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 461 NumberOfCodeBlocks, 373 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 1924 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1121 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 28 InterpolantComputations, 7 PerfectInterpolantSequences, 858/1725 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 16:30:22,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a8ee90d-b352-4523-9563-ee6b7d164a10/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE