./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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 0.3.0-?-551b009-m [2025-01-10 06:46:25,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:46:25,331 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:46:25,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:46:25,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:46:25,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:46:25,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:46:25,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:46:25,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:46:25,358 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:46:25,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:46:25,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:46:25,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:46:25,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:46:25,359 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:46:25,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:46:25,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:46:25,360 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:46:25,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:46:25,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:46:25,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:46:25,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:46:25,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:46:25,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:46:25,361 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:46:25,361 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:46:25,361 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:46:25,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:46:25,361 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:46:25,361 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:46:25,361 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:46:25,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:46:25,362 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:46:25,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:46:25,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:46:25,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:46:25,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:46:25,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:46:25,363 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 [2025-01-10 06:46:25,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:46:25,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:46:25,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:46:25,668 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:46:25,669 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:46:25,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2025-01-10 06:46:27,008 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cbb62c87a/ce80c7719ce6410ea2566cafff88e68a/FLAG4f3b49ebc [2025-01-10 06:46:27,356 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:46:27,356 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2025-01-10 06:46:27,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cbb62c87a/ce80c7719ce6410ea2566cafff88e68a/FLAG4f3b49ebc [2025-01-10 06:46:27,390 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cbb62c87a/ce80c7719ce6410ea2566cafff88e68a [2025-01-10 06:46:27,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:46:27,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:46:27,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:46:27,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:46:27,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:46:27,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1585f1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27, skipping insertion in model container [2025-01-10 06:46:27,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:46:27,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:46:27,740 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:46:27,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:46:27,866 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:46:27,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27 WrapperNode [2025-01-10 06:46:27,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:46:27,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:46:27,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:46:27,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:46:27,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,934 INFO L138 Inliner]: procedures = 252, calls = 53, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 174 [2025-01-10 06:46:27,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:46:27,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:46:27,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:46:27,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:46:27,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,975 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 2, 5]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 0, 5]. The 1 writes are split as follows [0, 0, 0, 1, 0]. [2025-01-10 06:46:27,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,988 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:27,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:28,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:28,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:28,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:46:28,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:46:28,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:46:28,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:46:28,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (1/1) ... [2025-01-10 06:46:28,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:46:28,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:46:28,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:46:28,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:46:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 06:46:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 06:46:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:46:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:46:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:46:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 06:46:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 06:46:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-10 06:46:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:46:28,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:46:28,108 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:46:28,247 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:46:28,249 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:46:28,467 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:46:28,468 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:46:28,630 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:46:28,630 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2025-01-10 06:46:28,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:46:28 BoogieIcfgContainer [2025-01-10 06:46:28,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:46:28,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:46:28,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:46:28,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:46:28,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:46:27" (1/3) ... [2025-01-10 06:46:28,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5178d079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:46:28, skipping insertion in model container [2025-01-10 06:46:28,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:46:27" (2/3) ... [2025-01-10 06:46:28,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5178d079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:46:28, skipping insertion in model container [2025-01-10 06:46:28,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:46:28" (3/3) ... [2025-01-10 06:46:28,643 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2025-01-10 06:46:28,657 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:46:28,659 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_27-funptr_racing.i that has 2 procedures, 82 locations, 1 initial locations, 9 loop locations, and 12 error locations. [2025-01-10 06:46:28,659 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:46:28,714 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-10 06:46:28,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 98 transitions, 203 flow [2025-01-10 06:46:28,828 INFO L124 PetriNetUnfolderBase]: 18/117 cut-off events. [2025-01-10 06:46:28,831 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:46:28,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 117 events. 18/117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 404 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 89. Up to 4 conditions per place. [2025-01-10 06:46:28,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 98 transitions, 203 flow [2025-01-10 06:46:28,837 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 97 transitions, 201 flow [2025-01-10 06:46:28,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:46:28,867 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;@8fefb52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:46:28,867 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-01-10 06:46:28,874 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:46:28,874 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-01-10 06:46:28,875 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:46:28,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:28,875 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 06:46:28,876 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)] === [2025-01-10 06:46:28,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:28,880 INFO L85 PathProgramCache]: Analyzing trace with hash 468023670, now seen corresponding path program 1 times [2025-01-10 06:46:28,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:28,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585861423] [2025-01-10 06:46:28,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:46:28,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:28,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:46:28,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:46:28,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:28,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:46:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:46:29,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:46:29,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585861423] [2025-01-10 06:46:29,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585861423] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:46:29,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:46:29,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:46:29,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902028746] [2025-01-10 06:46:29,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:46:29,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:46:29,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:46:29,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:46:29,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:46:29,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 98 [2025-01-10 06:46:29,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 97 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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) [2025-01-10 06:46:29,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:46:29,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 98 [2025-01-10 06:46:29,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:46:29,448 INFO L124 PetriNetUnfolderBase]: 420/1067 cut-off events. [2025-01-10 06:46:29,448 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:46:29,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 1067 events. 420/1067 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6520 event pairs, 0 based on Foata normal form. 184/1172 useless extension candidates. Maximal degree in co-relation 1897. Up to 786 conditions per place. [2025-01-10 06:46:29,456 INFO L140 encePairwiseOnDemand]: 78/98 looper letters, 97 selfloop transitions, 3 changer transitions 0/136 dead transitions. [2025-01-10 06:46:29,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 136 transitions, 479 flow [2025-01-10 06:46:29,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:46:29,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:46:29,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2025-01-10 06:46:29,467 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7270408163265306 [2025-01-10 06:46:29,468 INFO L175 Difference]: Start difference. First operand has 85 places, 97 transitions, 201 flow. Second operand 4 states and 285 transitions. [2025-01-10 06:46:29,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 136 transitions, 479 flow [2025-01-10 06:46:29,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:46:29,476 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 179 flow [2025-01-10 06:46:29,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2025-01-10 06:46:29,481 INFO L279 CegarLoopForPetriNet]: 85 programPoint places, 2 predicate places. [2025-01-10 06:46:29,481 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 179 flow [2025-01-10 06:46:29,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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) [2025-01-10 06:46:29,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:29,482 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-01-10 06:46:29,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:46:29,482 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)] === [2025-01-10 06:46:29,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:29,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1429792351, now seen corresponding path program 1 times [2025-01-10 06:46:29,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:29,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8214584] [2025-01-10 06:46:29,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:46:29,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:29,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:46:29,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:46:29,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:29,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:46:29,503 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:46:29,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:46:29,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:46:29,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:29,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:46:29,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:46:29,545 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 06:46:29,546 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2025-01-10 06:46:29,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2025-01-10 06:46:29,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2025-01-10 06:46:29,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2025-01-10 06:46:29,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2025-01-10 06:46:29,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2025-01-10 06:46:29,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:46:29,553 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-10 06:46:29,559 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-10 06:46:29,563 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-10 06:46:29,636 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-10 06:46:29,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 165 transitions, 346 flow [2025-01-10 06:46:29,656 INFO L124 PetriNetUnfolderBase]: 35/222 cut-off events. [2025-01-10 06:46:29,656 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-01-10 06:46:29,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 222 events. 35/222 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 978 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 163. Up to 6 conditions per place. [2025-01-10 06:46:29,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 165 transitions, 346 flow [2025-01-10 06:46:29,660 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 165 transitions, 346 flow [2025-01-10 06:46:29,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:46:29,661 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;@8fefb52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:46:29,661 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-01-10 06:46:29,663 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:46:29,663 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-01-10 06:46:29,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:46:29,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:29,663 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 06:46:29,663 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)] === [2025-01-10 06:46:29,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:29,664 INFO L85 PathProgramCache]: Analyzing trace with hash 625546460, now seen corresponding path program 1 times [2025-01-10 06:46:29,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:29,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687466933] [2025-01-10 06:46:29,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:46:29,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:29,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:46:29,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:46:29,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:29,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:46:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:46:29,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:46:29,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687466933] [2025-01-10 06:46:29,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687466933] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:46:29,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:46:29,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:46:29,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809366516] [2025-01-10 06:46:29,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:46:29,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:46:29,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:46:29,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:46:29,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:46:29,756 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2025-01-10 06:46:29,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 165 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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) [2025-01-10 06:46:29,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:46:29,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2025-01-10 06:46:29,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:46:33,433 INFO L124 PetriNetUnfolderBase]: 27146/53674 cut-off events. [2025-01-10 06:46:33,437 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2025-01-10 06:46:33,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95204 conditions, 53674 events. 27146/53674 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 1314. Compared 536683 event pairs, 14035 based on Foata normal form. 8804/57056 useless extension candidates. Maximal degree in co-relation 9343. Up to 41299 conditions per place. [2025-01-10 06:46:33,891 INFO L140 encePairwiseOnDemand]: 133/165 looper letters, 131 selfloop transitions, 3 changer transitions 0/196 dead transitions. [2025-01-10 06:46:33,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 196 transitions, 676 flow [2025-01-10 06:46:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:46:33,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:46:33,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 435 transitions. [2025-01-10 06:46:33,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2025-01-10 06:46:33,899 INFO L175 Difference]: Start difference. First operand has 140 places, 165 transitions, 346 flow. Second operand 4 states and 435 transitions. [2025-01-10 06:46:33,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 196 transitions, 676 flow [2025-01-10 06:46:33,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 196 transitions, 676 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:46:33,905 INFO L231 Difference]: Finished difference. Result has 145 places, 141 transitions, 318 flow [2025-01-10 06:46:33,906 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2025-01-10 06:46:33,907 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2025-01-10 06:46:33,907 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 318 flow [2025-01-10 06:46:33,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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) [2025-01-10 06:46:33,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:33,907 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-01-10 06:46:33,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:46:33,908 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)] === [2025-01-10 06:46:33,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:33,909 INFO L85 PathProgramCache]: Analyzing trace with hash 2108700604, now seen corresponding path program 1 times [2025-01-10 06:46:33,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:33,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064713152] [2025-01-10 06:46:33,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:46:33,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:33,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:46:33,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:46:33,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:33,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:46:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:46:33,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:46:33,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064713152] [2025-01-10 06:46:33,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064713152] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:46:33,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:46:33,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:46:33,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387544946] [2025-01-10 06:46:33,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:46:33,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:46:33,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:46:33,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:46:33,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:46:34,001 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2025-01-10 06:46:34,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2025-01-10 06:46:34,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:46:34,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2025-01-10 06:46:34,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:46:36,991 INFO L124 PetriNetUnfolderBase]: 26209/47131 cut-off events. [2025-01-10 06:46:36,991 INFO L125 PetriNetUnfolderBase]: For 2941/2941 co-relation queries the response was YES. [2025-01-10 06:46:37,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90435 conditions, 47131 events. 26209/47131 cut-off events. For 2941/2941 co-relation queries the response was YES. Maximal size of possible extension queue 1139. Compared 433327 event pairs, 2033 based on Foata normal form. 756/44457 useless extension candidates. Maximal degree in co-relation 5125. Up to 29182 conditions per place. [2025-01-10 06:46:37,361 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 235 selfloop transitions, 6 changer transitions 0/303 dead transitions. [2025-01-10 06:46:37,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 303 transitions, 1122 flow [2025-01-10 06:46:37,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:46:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:46:37,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 614 transitions. [2025-01-10 06:46:37,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6202020202020202 [2025-01-10 06:46:37,363 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 318 flow. Second operand 6 states and 614 transitions. [2025-01-10 06:46:37,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 303 transitions, 1122 flow [2025-01-10 06:46:37,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 303 transitions, 1120 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:46:37,369 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 324 flow [2025-01-10 06:46:37,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2025-01-10 06:46:37,370 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 8 predicate places. [2025-01-10 06:46:37,370 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 324 flow [2025-01-10 06:46:37,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2025-01-10 06:46:37,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:37,371 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:46:37,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:46:37,371 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)] === [2025-01-10 06:46:37,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:37,371 INFO L85 PathProgramCache]: Analyzing trace with hash 945209934, now seen corresponding path program 1 times [2025-01-10 06:46:37,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:37,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708856834] [2025-01-10 06:46:37,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:46:37,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:37,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:46:37,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:46:37,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:37,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:46:37,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:46:37,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:46:37,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708856834] [2025-01-10 06:46:37,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708856834] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:46:37,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:46:37,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:46:37,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107283064] [2025-01-10 06:46:37,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:46:37,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:46:37,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:46:37,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:46:37,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:46:37,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2025-01-10 06:46:37,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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) [2025-01-10 06:46:37,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:46:37,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2025-01-10 06:46:37,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:46:40,172 INFO L124 PetriNetUnfolderBase]: 23989/46742 cut-off events. [2025-01-10 06:46:40,172 INFO L125 PetriNetUnfolderBase]: For 6521/6521 co-relation queries the response was YES. [2025-01-10 06:46:40,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88218 conditions, 46742 events. 23989/46742 cut-off events. For 6521/6521 co-relation queries the response was YES. Maximal size of possible extension queue 1095. Compared 451329 event pairs, 5131 based on Foata normal form. 757/44457 useless extension candidates. Maximal degree in co-relation 26308. Up to 30500 conditions per place. [2025-01-10 06:46:40,480 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 180 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2025-01-10 06:46:40,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 248 transitions, 910 flow [2025-01-10 06:46:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:46:40,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:46:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2025-01-10 06:46:40,483 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.656060606060606 [2025-01-10 06:46:40,483 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 324 flow. Second operand 4 states and 433 transitions. [2025-01-10 06:46:40,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 248 transitions, 910 flow [2025-01-10 06:46:40,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 248 transitions, 894 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-01-10 06:46:40,506 INFO L231 Difference]: Finished difference. Result has 146 places, 140 transitions, 324 flow [2025-01-10 06:46:40,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=140} [2025-01-10 06:46:40,509 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 6 predicate places. [2025-01-10 06:46:40,510 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 140 transitions, 324 flow [2025-01-10 06:46:40,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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) [2025-01-10 06:46:40,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:40,511 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:46:40,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:46:40,511 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)] === [2025-01-10 06:46:40,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1789798482, now seen corresponding path program 1 times [2025-01-10 06:46:40,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:40,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999948505] [2025-01-10 06:46:40,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:46:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:40,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:46:40,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:46:40,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:40,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:46:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:46:40,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:46:40,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999948505] [2025-01-10 06:46:40,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999948505] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:46:40,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:46:40,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:46:40,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668895794] [2025-01-10 06:46:40,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:46:40,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:46:40,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:46:40,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:46:40,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:46:40,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2025-01-10 06:46:40,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 140 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2025-01-10 06:46:40,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:46:40,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2025-01-10 06:46:40,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:46:44,309 INFO L124 PetriNetUnfolderBase]: 31150/62914 cut-off events. [2025-01-10 06:46:44,309 INFO L125 PetriNetUnfolderBase]: For 6864/6864 co-relation queries the response was YES. [2025-01-10 06:46:44,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114448 conditions, 62914 events. 31150/62914 cut-off events. For 6864/6864 co-relation queries the response was YES. Maximal size of possible extension queue 1561. Compared 653285 event pairs, 9967 based on Foata normal form. 515/58101 useless extension candidates. Maximal degree in co-relation 93965. Up to 29147 conditions per place. [2025-01-10 06:46:44,546 INFO L140 encePairwiseOnDemand]: 152/165 looper letters, 213 selfloop transitions, 18 changer transitions 0/292 dead transitions. [2025-01-10 06:46:44,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 292 transitions, 1149 flow [2025-01-10 06:46:44,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:46:44,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:46:44,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 541 transitions. [2025-01-10 06:46:44,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6557575757575758 [2025-01-10 06:46:44,551 INFO L175 Difference]: Start difference. First operand has 146 places, 140 transitions, 324 flow. Second operand 5 states and 541 transitions. [2025-01-10 06:46:44,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 292 transitions, 1149 flow [2025-01-10 06:46:44,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 292 transitions, 1133 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:46:44,556 INFO L231 Difference]: Finished difference. Result has 152 places, 157 transitions, 456 flow [2025-01-10 06:46:44,556 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=456, PETRI_PLACES=152, PETRI_TRANSITIONS=157} [2025-01-10 06:46:44,557 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2025-01-10 06:46:44,557 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 157 transitions, 456 flow [2025-01-10 06:46:44,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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) [2025-01-10 06:46:44,557 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:44,557 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2025-01-10 06:46:44,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:46:44,557 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)] === [2025-01-10 06:46:44,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:44,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2108668575, now seen corresponding path program 1 times [2025-01-10 06:46:44,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:44,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509617874] [2025-01-10 06:46:44,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:46:44,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:44,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:46:44,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:46:44,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:44,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:46:44,575 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:46:44,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:46:44,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:46:44,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:44,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:46:44,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:46:44,587 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2025-01-10 06:46:44,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2025-01-10 06:46:44,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2025-01-10 06:46:44,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2025-01-10 06:46:44,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2025-01-10 06:46:44,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2025-01-10 06:46:44,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2025-01-10 06:46:44,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:46:44,590 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-01-10 06:46:44,591 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-10 06:46:44,591 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-01-10 06:46:44,635 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-10 06:46:44,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 232 transitions, 491 flow [2025-01-10 06:46:44,667 INFO L124 PetriNetUnfolderBase]: 55/346 cut-off events. [2025-01-10 06:46:44,667 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-01-10 06:46:44,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 346 events. 55/346 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1680 event pairs, 1 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 248. Up to 12 conditions per place. [2025-01-10 06:46:44,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 232 transitions, 491 flow [2025-01-10 06:46:44,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 232 transitions, 491 flow [2025-01-10 06:46:44,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:46:44,677 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;@8fefb52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:46:44,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2025-01-10 06:46:44,678 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:46:44,678 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-01-10 06:46:44,678 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:46:44,678 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:46:44,678 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 06:46:44,678 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)] === [2025-01-10 06:46:44,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:46:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash 847007685, now seen corresponding path program 1 times [2025-01-10 06:46:44,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:46:44,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648229725] [2025-01-10 06:46:44,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:46:44,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:46:44,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:46:44,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:46:44,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:46:44,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:46:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:46:44,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:46:44,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648229725] [2025-01-10 06:46:44,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648229725] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:46:44,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:46:44,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:46:44,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590335616] [2025-01-10 06:46:44,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:46:44,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:46:44,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:46:44,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:46:44,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:46:44,725 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 232 [2025-01-10 06:46:44,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 232 transitions, 491 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2025-01-10 06:46:44,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:46:44,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 232 [2025-01-10 06:46:44,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand