./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/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_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/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_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/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 ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:58:59,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:58:59,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:58:59,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:58:59,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:58:59,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:58:59,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:58:59,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:58:59,352 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:58:59,353 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:58:59,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:58:59,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:58:59,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:58:59,356 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:58:59,356 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:58:59,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:58:59,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:58:59,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:58:59,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:58:59,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:58:59,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:58:59,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:58:59,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:58:59,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:58:59,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:58:59,363 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:58:59,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:58:59,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:58:59,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:58:59,365 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:58:59,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:58:59,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:58:59,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:58:59,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:58:59,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:58:59,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:58:59,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:58:59,368 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:58:59,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:58:59,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:58:59,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:58:59,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:58:59,371 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:58:59,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:58:59,372 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_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c [2024-11-08 16:58:59,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:58:59,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:58:59,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:58:59,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:58:59,795 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:58:59,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i Unable to find full path for "g++" [2024-11-08 16:59:02,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:59:02,686 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:59:02,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-11-08 16:59:02,710 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/data/c717c2c86/d7af2ebbbd5f476f80af35ffc5c53566/FLAG3c7508557 [2024-11-08 16:59:02,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/data/c717c2c86/d7af2ebbbd5f476f80af35ffc5c53566 [2024-11-08 16:59:02,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:59:02,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:59:02,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:59:02,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:59:02,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:59:02,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:59:02" (1/1) ... [2024-11-08 16:59:03,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b7ae3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:03, skipping insertion in model container [2024-11-08 16:59:03,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:59:02" (1/1) ... [2024-11-08 16:59:03,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:59:03,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:59:03,847 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:59:03,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:59:04,102 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:59:04,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04 WrapperNode [2024-11-08 16:59:04,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:59:04,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:59:04,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:59:04,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:59:04,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,189 INFO L138 Inliner]: procedures = 252, calls = 53, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 178 [2024-11-08 16:59:04,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:59:04,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:59:04,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:59:04,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:59:04,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,232 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-11-08 16:59:04,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:59:04,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:59:04,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:59:04,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:59:04,282 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (1/1) ... [2024-11-08 16:59:04,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:59:04,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:04,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:59:04,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:59:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:59:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:59:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:59:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:59:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:59:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:59:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:59:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:59:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:59:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:59:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:59:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:59:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 16:59:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 16:59:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:59:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:59:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:59:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:59:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:59:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:59:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:59:04,401 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 16:59:04,656 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:59:04,659 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:59:05,122 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:59:05,124 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:59:05,393 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:59:05,393 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-08 16:59:05,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:59:05 BoogieIcfgContainer [2024-11-08 16:59:05,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:59:05,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:59:05,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:59:05,403 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:59:05,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:59:02" (1/3) ... [2024-11-08 16:59:05,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75772f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:59:05, skipping insertion in model container [2024-11-08 16:59:05,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:04" (2/3) ... [2024-11-08 16:59:05,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75772f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:59:05, skipping insertion in model container [2024-11-08 16:59:05,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:59:05" (3/3) ... [2024-11-08 16:59:05,408 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2024-11-08 16:59:05,433 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:59:05,434 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 16:59:05,434 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:59:05,554 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 16:59:05,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 104 transitions, 215 flow [2024-11-08 16:59:05,751 INFO L124 PetriNetUnfolderBase]: 22/129 cut-off events. [2024-11-08 16:59:05,752 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:59:05,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 129 events. 22/129 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 427 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 95. Up to 4 conditions per place. [2024-11-08 16:59:05,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 104 transitions, 215 flow [2024-11-08 16:59:05,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 103 transitions, 213 flow [2024-11-08 16:59:05,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:59:05,792 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;@1e30e8ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:59:05,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 16:59:05,800 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:59:05,800 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-08 16:59:05,800 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:59:05,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:05,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:59:05,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:59:05,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:05,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1604794886, now seen corresponding path program 1 times [2024-11-08 16:59:05,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:05,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390681077] [2024-11-08 16:59:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:05,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:06,269 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 16:59:06,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:06,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390681077] [2024-11-08 16:59:06,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390681077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:06,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:06,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:59:06,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407107622] [2024-11-08 16:59:06,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:06,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:06,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:06,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:06,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:06,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 104 [2024-11-08 16:59:06,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 103 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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 16:59:06,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:06,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 104 [2024-11-08 16:59:06,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:07,001 INFO L124 PetriNetUnfolderBase]: 502/1258 cut-off events. [2024-11-08 16:59:07,002 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:59:07,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2216 conditions, 1258 events. 502/1258 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7561 event pairs, 14 based on Foata normal form. 192/1364 useless extension candidates. Maximal degree in co-relation 2170. Up to 869 conditions per place. [2024-11-08 16:59:07,019 INFO L140 encePairwiseOnDemand]: 83/104 looper letters, 99 selfloop transitions, 3 changer transitions 0/142 dead transitions. [2024-11-08 16:59:07,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 142 transitions, 495 flow [2024-11-08 16:59:07,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:07,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:59:07,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 304 transitions. [2024-11-08 16:59:07,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7307692307692307 [2024-11-08 16:59:07,045 INFO L175 Difference]: Start difference. First operand has 89 places, 103 transitions, 213 flow. Second operand 4 states and 304 transitions. [2024-11-08 16:59:07,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 142 transitions, 495 flow [2024-11-08 16:59:07,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 142 transitions, 495 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:59:07,063 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 193 flow [2024-11-08 16:59:07,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-11-08 16:59:07,075 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 2 predicate places. [2024-11-08 16:59:07,075 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 193 flow [2024-11-08 16:59:07,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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 16:59:07,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:07,076 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:07,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:59:07,077 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 16:59:07,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:07,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1722025627, now seen corresponding path program 1 times [2024-11-08 16:59:07,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:07,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219945153] [2024-11-08 16:59:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:07,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:59:07,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:59:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:59:07,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:59:07,205 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:59:07,207 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-08 16:59:07,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-08 16:59:07,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-08 16:59:07,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-08 16:59:07,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-08 16:59:07,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-08 16:59:07,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-08 16:59:07,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-08 16:59:07,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-08 16:59:07,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-08 16:59:07,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-08 16:59:07,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-08 16:59:07,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-08 16:59:07,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-08 16:59:07,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-08 16:59:07,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-08 16:59:07,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-08 16:59:07,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-08 16:59:07,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-08 16:59:07,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-08 16:59:07,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-08 16:59:07,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:59:07,225 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 16:59:07,231 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:59:07,231 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:59:07,349 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 16:59:07,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 171 transitions, 358 flow [2024-11-08 16:59:07,452 INFO L124 PetriNetUnfolderBase]: 42/243 cut-off events. [2024-11-08 16:59:07,453 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 16:59:07,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 243 events. 42/243 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1016 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 172. Up to 8 conditions per place. [2024-11-08 16:59:07,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 171 transitions, 358 flow [2024-11-08 16:59:07,465 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 171 transitions, 358 flow [2024-11-08 16:59:07,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:59:07,470 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;@1e30e8ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:59:07,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-08 16:59:07,478 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:59:07,479 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-08 16:59:07,479 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:59:07,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:07,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:59:07,480 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:59:07,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1926306265, now seen corresponding path program 1 times [2024-11-08 16:59:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:07,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363578072] [2024-11-08 16:59:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:07,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:07,638 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 16:59:07,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:07,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363578072] [2024-11-08 16:59:07,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363578072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:07,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:07,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:59:07,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019431002] [2024-11-08 16:59:07,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:07,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:07,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:07,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:07,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:07,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 171 [2024-11-08 16:59:07,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 171 transitions, 358 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 16:59:07,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:07,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 171 [2024-11-08 16:59:07,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:16,760 INFO L124 PetriNetUnfolderBase]: 29955/58608 cut-off events. [2024-11-08 16:59:16,761 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-08 16:59:16,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103254 conditions, 58608 events. 29955/58608 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 1404. Compared 585737 event pairs, 14850 based on Foata normal form. 9255/62746 useless extension candidates. Maximal degree in co-relation 10088. Up to 44415 conditions per place. [2024-11-08 16:59:17,169 INFO L140 encePairwiseOnDemand]: 138/171 looper letters, 133 selfloop transitions, 3 changer transitions 0/202 dead transitions. [2024-11-08 16:59:17,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 202 transitions, 692 flow [2024-11-08 16:59:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:59:17,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 454 transitions. [2024-11-08 16:59:17,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6637426900584795 [2024-11-08 16:59:17,174 INFO L175 Difference]: Start difference. First operand has 144 places, 171 transitions, 358 flow. Second operand 4 states and 454 transitions. [2024-11-08 16:59:17,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 202 transitions, 692 flow [2024-11-08 16:59:17,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 202 transitions, 692 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:59:17,181 INFO L231 Difference]: Finished difference. Result has 149 places, 147 transitions, 332 flow [2024-11-08 16:59:17,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=332, PETRI_PLACES=149, PETRI_TRANSITIONS=147} [2024-11-08 16:59:17,183 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 5 predicate places. [2024-11-08 16:59:17,183 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 147 transitions, 332 flow [2024-11-08 16:59:17,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 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 16:59:17,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:17,184 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:17,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:59:17,185 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:59:17,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:17,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1459025964, now seen corresponding path program 1 times [2024-11-08 16:59:17,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:17,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574732468] [2024-11-08 16:59:17,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:17,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:17,400 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:17,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:17,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574732468] [2024-11-08 16:59:17,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574732468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:59:17,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744422829] [2024-11-08 16:59:17,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:17,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:17,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:17,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:17,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:59:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:17,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:59:17,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:17,672 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:17,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744422829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:17,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:59:17,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 16:59:17,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668175010] [2024-11-08 16:59:17,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:17,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:17,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:17,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:17,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:59:17,707 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 171 [2024-11-08 16:59:17,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 147 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 16:59:17,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:17,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 171 [2024-11-08 16:59:17,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:23,745 INFO L124 PetriNetUnfolderBase]: 29346/53659 cut-off events. [2024-11-08 16:59:23,746 INFO L125 PetriNetUnfolderBase]: For 3723/3723 co-relation queries the response was YES. [2024-11-08 16:59:23,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100855 conditions, 53659 events. 29346/53659 cut-off events. For 3723/3723 co-relation queries the response was YES. Maximal size of possible extension queue 1236. Compared 505776 event pairs, 2384 based on Foata normal form. 756/50836 useless extension candidates. Maximal degree in co-relation 4591. Up to 29182 conditions per place. [2024-11-08 16:59:24,058 INFO L140 encePairwiseOnDemand]: 166/171 looper letters, 237 selfloop transitions, 6 changer transitions 0/309 dead transitions. [2024-11-08 16:59:24,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 309 transitions, 1140 flow [2024-11-08 16:59:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:59:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:59:24,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 640 transitions. [2024-11-08 16:59:24,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6237816764132553 [2024-11-08 16:59:24,063 INFO L175 Difference]: Start difference. First operand has 149 places, 147 transitions, 332 flow. Second operand 6 states and 640 transitions. [2024-11-08 16:59:24,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 309 transitions, 1140 flow [2024-11-08 16:59:24,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 309 transitions, 1138 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:59:24,078 INFO L231 Difference]: Finished difference. Result has 152 places, 146 transitions, 338 flow [2024-11-08 16:59:24,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=152, PETRI_TRANSITIONS=146} [2024-11-08 16:59:24,080 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 8 predicate places. [2024-11-08 16:59:24,080 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 146 transitions, 338 flow [2024-11-08 16:59:24,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 16:59:24,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:24,081 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 16:59:24,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:59:24,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59cbfd1b-69d5-4f5e-b086-8c41f8940bd8/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:24,287 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:59:24,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:24,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2014835997, now seen corresponding path program 1 times [2024-11-08 16:59:24,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:24,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010844623] [2024-11-08 16:59:24,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:24,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:59:24,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:24,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010844623] [2024-11-08 16:59:24,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010844623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:24,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:24,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:59:24,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883949209] [2024-11-08 16:59:24,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:24,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:24,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:24,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:24,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:24,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 171 [2024-11-08 16:59:24,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 146 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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 16:59:24,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:24,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 171 [2024-11-08 16:59:24,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:30,397 INFO L124 PetriNetUnfolderBase]: 28646/51978 cut-off events. [2024-11-08 16:59:30,398 INFO L125 PetriNetUnfolderBase]: For 6424/6424 co-relation queries the response was YES. [2024-11-08 16:59:30,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99314 conditions, 51978 events. 28646/51978 cut-off events. For 6424/6424 co-relation queries the response was YES. Maximal size of possible extension queue 1200. Compared 481318 event pairs, 3315 based on Foata normal form. 1524/50864 useless extension candidates. Maximal degree in co-relation 28051. Up to 33998 conditions per place. [2024-11-08 16:59:30,705 INFO L140 encePairwiseOnDemand]: 165/171 looper letters, 182 selfloop transitions, 6 changer transitions 0/253 dead transitions. [2024-11-08 16:59:30,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 253 transitions, 924 flow [2024-11-08 16:59:30,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:59:30,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:59:30,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2024-11-08 16:59:30,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6549707602339181 [2024-11-08 16:59:30,710 INFO L175 Difference]: Start difference. First operand has 152 places, 146 transitions, 338 flow. Second operand 4 states and 448 transitions. [2024-11-08 16:59:30,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 253 transitions, 924 flow [2024-11-08 16:59:30,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 253 transitions, 914 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 16:59:30,759 INFO L231 Difference]: Finished difference. Result has 151 places, 145 transitions, 340 flow [2024-11-08 16:59:30,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=151, PETRI_TRANSITIONS=145} [2024-11-08 16:59:30,764 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 7 predicate places. [2024-11-08 16:59:30,765 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 145 transitions, 340 flow [2024-11-08 16:59:30,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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 16:59:30,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:30,765 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:30,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:59:30,766 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:59:30,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:30,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1072355041, now seen corresponding path program 1 times [2024-11-08 16:59:30,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:30,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070065591] [2024-11-08 16:59:30,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:30,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:30,880 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 16:59:30,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:30,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070065591] [2024-11-08 16:59:30,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070065591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:30,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:30,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:59:30,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970493022] [2024-11-08 16:59:30,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:30,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:30,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:30,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:30,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:30,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 171 [2024-11-08 16:59:30,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 145 transitions, 340 flow. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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 16:59:30,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:30,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 171 [2024-11-08 16:59:30,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:36,961 INFO L124 PetriNetUnfolderBase]: 30400/62235 cut-off events. [2024-11-08 16:59:36,961 INFO L125 PetriNetUnfolderBase]: For 5240/5240 co-relation queries the response was YES. [2024-11-08 16:59:37,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109684 conditions, 62235 events. 30400/62235 cut-off events. For 5240/5240 co-relation queries the response was YES. Maximal size of possible extension queue 1587. Compared 660132 event pairs, 9449 based on Foata normal form. 487/58315 useless extension candidates. Maximal degree in co-relation 90011. Up to 27226 conditions per place. [2024-11-08 16:59:37,275 INFO L140 encePairwiseOnDemand]: 158/171 looper letters, 208 selfloop transitions, 18 changer transitions 0/294 dead transitions. [2024-11-08 16:59:37,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 294 transitions, 1137 flow [2024-11-08 16:59:37,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:37,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:59:37,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 572 transitions. [2024-11-08 16:59:37,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6690058479532164 [2024-11-08 16:59:37,281 INFO L175 Difference]: Start difference. First operand has 151 places, 145 transitions, 340 flow. Second operand 5 states and 572 transitions. [2024-11-08 16:59:37,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 294 transitions, 1137 flow [2024-11-08 16:59:37,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 294 transitions, 1124 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:59:37,292 INFO L231 Difference]: Finished difference. Result has 157 places, 162 transitions, 472 flow [2024-11-08 16:59:37,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=472, PETRI_PLACES=157, PETRI_TRANSITIONS=162} [2024-11-08 16:59:37,295 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 13 predicate places. [2024-11-08 16:59:37,295 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 162 transitions, 472 flow [2024-11-08 16:59:37,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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 16:59:37,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:37,298 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 16:59:37,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:59:37,298 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 16:59:37,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:37,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1811845226, now seen corresponding path program 1 times [2024-11-08 16:59:37,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:37,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199507224] [2024-11-08 16:59:37,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:37,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:59:37,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:59:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:59:37,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:59:37,374 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:59:37,374 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-08 16:59:37,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2024-11-08 16:59:37,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2024-11-08 16:59:37,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2024-11-08 16:59:37,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2024-11-08 16:59:37,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2024-11-08 16:59:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2024-11-08 16:59:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2024-11-08 16:59:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2024-11-08 16:59:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2024-11-08 16:59:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2024-11-08 16:59:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2024-11-08 16:59:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2024-11-08 16:59:37,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2024-11-08 16:59:37,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2024-11-08 16:59:37,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2024-11-08 16:59:37,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2024-11-08 16:59:37,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2024-11-08 16:59:37,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2024-11-08 16:59:37,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2024-11-08 16:59:37,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2024-11-08 16:59:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2024-11-08 16:59:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2024-11-08 16:59:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2024-11-08 16:59:37,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2024-11-08 16:59:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2024-11-08 16:59:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2024-11-08 16:59:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2024-11-08 16:59:37,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2024-11-08 16:59:37,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:59:37,385 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 16:59:37,386 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:59:37,386 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 16:59:37,464 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 16:59:37,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 238 transitions, 503 flow [2024-11-08 16:59:37,538 INFO L124 PetriNetUnfolderBase]: 67/382 cut-off events. [2024-11-08 16:59:37,539 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 16:59:37,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 382 events. 67/382 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1772 event pairs, 1 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 263. Up to 16 conditions per place. [2024-11-08 16:59:37,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 199 places, 238 transitions, 503 flow [2024-11-08 16:59:37,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 238 transitions, 503 flow [2024-11-08 16:59:37,558 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:59:37,562 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;@1e30e8ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:59:37,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-08 16:59:37,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:59:37,565 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-08 16:59:37,565 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:59:37,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:37,565 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:59:37,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2024-11-08 16:59:37,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:37,570 INFO L85 PathProgramCache]: Analyzing trace with hash 819651432, now seen corresponding path program 1 times [2024-11-08 16:59:37,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:37,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137082641] [2024-11-08 16:59:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:37,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:37,653 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 16:59:37,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:37,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137082641] [2024-11-08 16:59:37,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137082641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:37,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:37,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:59:37,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666809457] [2024-11-08 16:59:37,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:37,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:37,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:37,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:37,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:59:37,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 238 [2024-11-08 16:59:37,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 238 transitions, 503 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 16:59:37,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:37,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 238 [2024-11-08 16:59:37,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand