./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 f044966ade6b1d79627a5dcb577ad24e14a4ae2ab2467e458af5fa83aa6cd521 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:04:26,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:04:26,866 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-12 00:04:26,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:04:26,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:04:26,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:04:26,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:04:26,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:04:26,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:04:26,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:04:26,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 00:04:26,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 00:04:26,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:04:26,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:04:26,915 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:04:26,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:04:26,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 00:04:26,916 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:04:26,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:04:26,916 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:04:26,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:04:26,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 00:04:26,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 00:04:26,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 00:04:26,920 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:04:26,920 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-12 00:04:26,920 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:04:26,920 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:04:26,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:04:26,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:04:26,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:04:26,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:04:26,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 00:04:26,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 00:04:26,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:04:26,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:04:26,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 00:04:26,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 00:04:26,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:04:26,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 00:04:26,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 00:04:26,923 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 00:04:26,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 00:04:26,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 00:04:26,924 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f044966ade6b1d79627a5dcb577ad24e14a4ae2ab2467e458af5fa83aa6cd521 [2024-10-12 00:04:27,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:04:27,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:04:27,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:04:27,205 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:04:27,205 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:04:27,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2024-10-12 00:04:28,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:04:28,894 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:04:28,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2024-10-12 00:04:28,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/bfc085ba3/d27796e1a66a41ecb0b92efbf761a0d5/FLAG2df39da75 [2024-10-12 00:04:28,950 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/bfc085ba3/d27796e1a66a41ecb0b92efbf761a0d5 [2024-10-12 00:04:28,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:04:28,954 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:04:28,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:04:28,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:04:28,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:04:28,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:04:28" (1/1) ... [2024-10-12 00:04:28,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a619587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:28, skipping insertion in model container [2024-10-12 00:04:28,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:04:28" (1/1) ... [2024-10-12 00:04:29,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:04:29,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:04:29,345 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:04:29,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:04:29,408 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:04:29,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29 WrapperNode [2024-10-12 00:04:29,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:04:29,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:04:29,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:04:29,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:04:29,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,455 INFO L138 Inliner]: procedures = 23, calls = 61, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 244 [2024-10-12 00:04:29,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:04:29,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:04:29,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:04:29,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:04:29,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,494 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 00:04:29,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:04:29,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:04:29,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:04:29,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:04:29,521 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (1/1) ... [2024-10-12 00:04:29,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:04:29,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:04:29,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 00:04:29,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 00:04:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:04:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-12 00:04:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-12 00:04:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-12 00:04:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-12 00:04:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-12 00:04:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-12 00:04:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-12 00:04:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-12 00:04:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:04:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-12 00:04:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-12 00:04:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-12 00:04:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-12 00:04:29,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:04:29,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:04:29,607 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:04:29,732 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:04:29,734 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:04:29,993 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:04:29,994 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:04:30,265 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:04:30,266 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 00:04:30,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:04:30 BoogieIcfgContainer [2024-10-12 00:04:30,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:04:30,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:04:30,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:04:30,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:04:30,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:04:28" (1/3) ... [2024-10-12 00:04:30,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d8f4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:04:30, skipping insertion in model container [2024-10-12 00:04:30,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:04:29" (2/3) ... [2024-10-12 00:04:30,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d8f4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:04:30, skipping insertion in model container [2024-10-12 00:04:30,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:04:30" (3/3) ... [2024-10-12 00:04:30,275 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-10-12 00:04:30,292 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:04:30,292 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-10-12 00:04:30,292 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:04:30,355 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-10-12 00:04:30,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 73 transitions, 181 flow [2024-10-12 00:04:30,424 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2024-10-12 00:04:30,424 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-12 00:04:30,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 68 events. 0/68 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-12 00:04:30,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 73 transitions, 181 flow [2024-10-12 00:04:30,430 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 66 transitions, 159 flow [2024-10-12 00:04:30,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:04:30,447 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;@2e318c88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:04:30,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-10-12 00:04:30,450 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:04:30,452 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-12 00:04:30,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-12 00:04:30,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:04:30,453 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-12 00:04:30,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-10-12 00:04:30,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:04:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash 17329599, now seen corresponding path program 1 times [2024-10-12 00:04:30,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:04:30,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855263776] [2024-10-12 00:04:30,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:04:30,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:04:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:04:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:04:30,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:04:30,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855263776] [2024-10-12 00:04:30,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855263776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:04:30,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:04:30,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:04:30,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865944094] [2024-10-12 00:04:30,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:04:30,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:04:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:04:30,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:04:30,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:04:30,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 73 [2024-10-12 00:04:30,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:04:30,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:04:30,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 73 [2024-10-12 00:04:30,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:04:59,130 INFO L124 PetriNetUnfolderBase]: 301350/393491 cut-off events. [2024-10-12 00:04:59,131 INFO L125 PetriNetUnfolderBase]: For 15356/15356 co-relation queries the response was YES. [2024-10-12 00:04:59,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788467 conditions, 393491 events. 301350/393491 cut-off events. For 15356/15356 co-relation queries the response was YES. Maximal size of possible extension queue 16000. Compared 2928077 event pairs, 301350 based on Foata normal form. 0/247991 useless extension candidates. Maximal degree in co-relation 742816. Up to 380927 conditions per place. [2024-10-12 00:05:02,203 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 49 selfloop transitions, 1 changer transitions 0/61 dead transitions. [2024-10-12 00:05:02,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 61 transitions, 249 flow [2024-10-12 00:05:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:05:02,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:05:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-10-12 00:05:02,217 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4703196347031963 [2024-10-12 00:05:02,219 INFO L175 Difference]: Start difference. First operand has 82 places, 66 transitions, 159 flow. Second operand 3 states and 103 transitions. [2024-10-12 00:05:02,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 61 transitions, 249 flow [2024-10-12 00:05:05,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 232 flow, removed 0 selfloop flow, removed 9 redundant places. [2024-10-12 00:05:05,540 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 134 flow [2024-10-12 00:05:05,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-10-12 00:05:05,546 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -12 predicate places. [2024-10-12 00:05:05,550 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 134 flow [2024-10-12 00:05:05,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:05:05,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:05:05,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-12 00:05:05,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 00:05:05,551 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2024-10-12 00:05:05,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:05:05,552 INFO L85 PathProgramCache]: Analyzing trace with hash 17329600, now seen corresponding path program 1 times [2024-10-12 00:05:05,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:05:05,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156082613] [2024-10-12 00:05:05,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:05:05,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:05:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:05:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:05:05,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:05:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156082613] [2024-10-12 00:05:05,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156082613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:05:05,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:05:05,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:05:05,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650013881] [2024-10-12 00:05:05,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:05:05,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:05:05,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:05:05,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:05:05,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:05:05,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 73 [2024-10-12 00:05:05,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:05:05,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:05:05,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 73 [2024-10-12 00:05:05,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand