./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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_09-ptrmunge_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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:05:22,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:05:22,102 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:05:22,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:05:22,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:05:22,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:05:22,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:05:22,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:05:22,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:05:22,135 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:05:22,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:05:22,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:05:22,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:05:22,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:05:22,137 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:05:22,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:05:22,138 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:05:22,139 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:05:22,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:05:22,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:05:22,139 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 -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2025-02-08 14:05:22,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:05:22,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:05:22,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:05:22,444 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:05:22,444 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:05:22,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2025-02-08 14:05:23,761 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdba5aeaa/fe93f5302fc3479a9c5704fa053747db/FLAGf7c763096 [2025-02-08 14:05:24,155 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:05:24,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2025-02-08 14:05:24,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdba5aeaa/fe93f5302fc3479a9c5704fa053747db/FLAGf7c763096 [2025-02-08 14:05:24,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdba5aeaa/fe93f5302fc3479a9c5704fa053747db [2025-02-08 14:05:24,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:05:24,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:05:24,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:05:24,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:05:24,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:05:24,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e94045c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24, skipping insertion in model container [2025-02-08 14:05:24,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:05:24,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:05:24,751 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:05:24,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:05:24,853 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:05:24,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24 WrapperNode [2025-02-08 14:05:24,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:05:24,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:05:24,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:05:24,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:05:24,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,908 INFO L138 Inliner]: procedures = 173, calls = 55, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 237 [2025-02-08 14:05:24,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:05:24,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:05:24,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:05:24,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:05:24,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,949 INFO L175 MemorySlicer]: Split 32 memory accesses to 7 slices as follows [2, 5, 5, 5, 2, 11, 2]. 34 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 5, 5, 5, 0, 1, 0]. The 6 writes are split as follows [0, 0, 0, 0, 1, 4, 1]. [2025-02-08 14:05:24,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,959 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:05:24,968 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:05:24,969 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:05:24,969 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:05:24,970 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (1/1) ... [2025-02-08 14:05:24,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:05:24,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:05:25,006 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) [2025-02-08 14:05:25,008 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 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-02-08 14:05:25,024 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:05:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-02-08 14:05:25,025 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 14:05:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:05:25,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:05:25,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:05:25,027 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:05:25,172 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:05:25,174 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:05:25,609 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-02-08 14:05:25,610 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-02-08 14:05:25,610 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-02-08 14:05:25,610 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L715-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-02-08 14:05:25,611 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:05:25,611 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:05:25,832 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:05:25,833 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:05:25,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:05:25 BoogieIcfgContainer [2025-02-08 14:05:25,834 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:05:25,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:05:25,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:05:25,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:05:25,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:05:24" (1/3) ... [2025-02-08 14:05:25,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7785214c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:05:25, skipping insertion in model container [2025-02-08 14:05:25,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:05:24" (2/3) ... [2025-02-08 14:05:25,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7785214c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:05:25, skipping insertion in model container [2025-02-08 14:05:25,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:05:25" (3/3) ... [2025-02-08 14:05:25,846 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2025-02-08 14:05:25,863 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:05:25,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_09-ptrmunge_racing.i that has 3 procedures, 104 locations, 1 initial locations, 14 loop locations, and 16 error locations. [2025-02-08 14:05:25,866 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:05:25,941 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-08 14:05:25,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 131 transitions, 282 flow [2025-02-08 14:05:26,064 INFO L124 PetriNetUnfolderBase]: 41/229 cut-off events. [2025-02-08 14:05:26,066 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 14:05:26,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 229 events. 41/229 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1132 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 136. Up to 8 conditions per place. [2025-02-08 14:05:26,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 131 transitions, 282 flow [2025-02-08 14:05:26,080 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 131 transitions, 282 flow [2025-02-08 14:05:26,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:05:26,102 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;@22be5d75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:05:26,103 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-02-08 14:05:26,112 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:05:26,113 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 14:05:26,113 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:05:26,113 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:26,113 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:05:26,114 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-02-08 14:05:26,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash 584051695, now seen corresponding path program 1 times [2025-02-08 14:05:26,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306410323] [2025-02-08 14:05:26,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:26,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:26,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:05:26,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:05:26,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:26,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:05:26,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:26,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306410323] [2025-02-08 14:05:26,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306410323] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:26,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:26,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:05:26,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124398004] [2025-02-08 14:05:26,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:26,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:05:26,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:26,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:05:26,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:05:26,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 131 [2025-02-08 14:05:26,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 131 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2025-02-08 14:05:26,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:26,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 131 [2025-02-08 14:05:26,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:27,974 INFO L124 PetriNetUnfolderBase]: 5692/12085 cut-off events. [2025-02-08 14:05:27,975 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2025-02-08 14:05:28,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21033 conditions, 12085 events. 5692/12085 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 105134 event pairs, 2844 based on Foata normal form. 2940/13060 useless extension candidates. Maximal degree in co-relation 20187. Up to 8767 conditions per place. [2025-02-08 14:05:28,109 INFO L140 encePairwiseOnDemand]: 105/131 looper letters, 90 selfloop transitions, 3 changer transitions 0/146 dead transitions. [2025-02-08 14:05:28,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 146 transitions, 498 flow [2025-02-08 14:05:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:05:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:05:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 348 transitions. [2025-02-08 14:05:28,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6641221374045801 [2025-02-08 14:05:28,128 INFO L175 Difference]: Start difference. First operand has 110 places, 131 transitions, 282 flow. Second operand 4 states and 348 transitions. [2025-02-08 14:05:28,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 146 transitions, 498 flow [2025-02-08 14:05:28,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 146 transitions, 498 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:05:28,150 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 248 flow [2025-02-08 14:05:28,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2025-02-08 14:05:28,157 INFO L279 CegarLoopForPetriNet]: 110 programPoint places, 2 predicate places. [2025-02-08 14:05:28,158 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 248 flow [2025-02-08 14:05:28,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2025-02-08 14:05:28,158 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:28,159 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:05:28,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:05:28,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-02-08 14:05:28,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:28,160 INFO L85 PathProgramCache]: Analyzing trace with hash 572071077, now seen corresponding path program 1 times [2025-02-08 14:05:28,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:28,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174655211] [2025-02-08 14:05:28,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:28,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:28,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:05:28,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:05:28,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:28,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:05:28,211 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:05:28,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:05:28,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:05:28,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:28,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:05:28,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:05:28,261 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 14:05:28,263 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2025-02-08 14:05:28,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2025-02-08 14:05:28,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2025-02-08 14:05:28,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2025-02-08 14:05:28,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:05:28,268 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 14:05:28,271 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 14:05:28,271 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 14:05:28,341 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-02-08 14:05:28,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 231 transitions, 506 flow [2025-02-08 14:05:28,425 INFO L124 PetriNetUnfolderBase]: 145/731 cut-off events. [2025-02-08 14:05:28,425 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2025-02-08 14:05:28,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 731 events. 145/731 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4872 event pairs, 2 based on Foata normal form. 0/491 useless extension candidates. Maximal degree in co-relation 452. Up to 32 conditions per place. [2025-02-08 14:05:28,446 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 231 transitions, 506 flow [2025-02-08 14:05:28,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 231 transitions, 506 flow [2025-02-08 14:05:28,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:05:28,464 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;@22be5d75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:05:28,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2025-02-08 14:05:28,466 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:05:28,467 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-02-08 14:05:28,468 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:05:28,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:28,468 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:05:28,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2025-02-08 14:05:28,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:28,471 INFO L85 PathProgramCache]: Analyzing trace with hash 802678835, now seen corresponding path program 1 times [2025-02-08 14:05:28,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:28,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705944713] [2025-02-08 14:05:28,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:28,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:05:28,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:05:28,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:28,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:05:28,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:28,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705944713] [2025-02-08 14:05:28,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705944713] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:28,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:28,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:05:28,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356981003] [2025-02-08 14:05:28,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:28,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:05:28,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:28,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:05:28,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:05:28,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 231 [2025-02-08 14:05:28,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 231 transitions, 506 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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) [2025-02-08 14:05:28,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:28,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 231 [2025-02-08 14:05:28,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand