./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:36:29,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:36:29,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:36:29,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:36:29,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:36:29,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:36:29,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:36:29,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:36:29,497 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:36:29,499 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:36:29,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:36:29,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:36:29,500 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:36:29,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:36:29,502 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:36:29,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:36:29,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:36:29,503 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:36:29,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:36:29,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:36:29,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:36:29,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:36:29,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:36:29,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:36:29,508 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:36:29,509 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:36:29,509 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:36:29,509 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:36:29,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:36:29,509 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:36:29,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:36:29,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:36:29,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:36:29,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:36:29,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:36:29,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:36:29,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:36:29,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:36:29,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:36:29,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:36:29,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:36:29,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:36:29,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:36:29,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:36:29,513 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2024-10-24 23:36:29,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:36:29,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:36:29,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:36:29,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:36:29,785 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:36:29,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-10-24 23:36:31,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:36:31,480 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:36:31,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-10-24 23:36:31,505 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f202df0a7/05fb2a2f6db6471bb67509eadd5288ba/FLAGb9c694239 [2024-10-24 23:36:31,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f202df0a7/05fb2a2f6db6471bb67509eadd5288ba [2024-10-24 23:36:31,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:36:31,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:36:31,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:36:31,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:36:31,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:36:31,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:36:31" (1/1) ... [2024-10-24 23:36:31,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484bc3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:31, skipping insertion in model container [2024-10-24 23:36:31,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:36:31" (1/1) ... [2024-10-24 23:36:31,588 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:36:32,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:36:32,178 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:36:32,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:36:32,316 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:36:32,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32 WrapperNode [2024-10-24 23:36:32,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:36:32,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:36:32,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:36:32,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:36:32,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,406 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 395 [2024-10-24 23:36:32,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:36:32,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:36:32,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:36:32,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:36:32,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,433 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,466 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 23, 5, 5, 5, 2, 5, 2, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 5, 5, 5, 0, 5, 0, 0]. The 15 writes are split as follows [0, 12, 0, 0, 0, 1, 0, 1, 1]. [2024-10-24 23:36:32,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:36:32,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:36:32,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:36:32,506 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:36:32,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (1/1) ... [2024-10-24 23:36:32,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:36:32,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:32,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 23:36:32,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 23:36:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 23:36:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 23:36:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 23:36:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 23:36:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 23:36:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 23:36:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-24 23:36:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-24 23:36:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-24 23:36:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-24 23:36:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-24 23:36:32,605 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-24 23:36:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 23:36:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 23:36:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:36:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:36:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 23:36:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 23:36:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 23:36:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 23:36:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 23:36:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 23:36:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 23:36:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-24 23:36:32,608 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-24 23:36:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:36:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:36:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 23:36:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 23:36:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 23:36:32,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 23:36:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-10-24 23:36:32,610 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 23:36:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 23:36:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 23:36:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 23:36:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 23:36:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:36:32,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:36:32,615 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:36:32,841 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:36:32,843 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:36:33,394 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:36:33,395 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:36:33,745 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:36:33,746 INFO L314 CfgBuilder]: Removed 28 assume(true) statements. [2024-10-24 23:36:33,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:36:33 BoogieIcfgContainer [2024-10-24 23:36:33,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:36:33,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:36:33,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:36:33,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:36:33,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:36:31" (1/3) ... [2024-10-24 23:36:33,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8deb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:36:33, skipping insertion in model container [2024-10-24 23:36:33,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:36:32" (2/3) ... [2024-10-24 23:36:33,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8deb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:36:33, skipping insertion in model container [2024-10-24 23:36:33,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:36:33" (3/3) ... [2024-10-24 23:36:33,754 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2024-10-24 23:36:33,773 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:36:33,773 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-10-24 23:36:33,773 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:36:33,868 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-10-24 23:36:33,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 167 transitions, 373 flow [2024-10-24 23:36:34,081 INFO L124 PetriNetUnfolderBase]: 114/584 cut-off events. [2024-10-24 23:36:34,081 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-24 23:36:34,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 584 events. 114/584 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3692 event pairs, 0 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 300. Up to 16 conditions per place. [2024-10-24 23:36:34,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 167 transitions, 373 flow [2024-10-24 23:36:34,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 167 transitions, 373 flow [2024-10-24 23:36:34,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:36:34,134 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;@78861e1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:36:34,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-10-24 23:36:34,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:36:34,141 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-10-24 23:36:34,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:36:34,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:34,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 23:36:34,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-10-24 23:36:34,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash 953335230, now seen corresponding path program 1 times [2024-10-24 23:36:34,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:34,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098143731] [2024-10-24 23:36:34,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:34,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:34,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:34,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098143731] [2024-10-24 23:36:34,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098143731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:34,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:34,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:36:34,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26027484] [2024-10-24 23:36:34,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:34,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:34,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:34,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:34,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:34,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 167 [2024-10-24 23:36:34,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 167 transitions, 373 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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) [2024-10-24 23:36:34,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:34,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 167 [2024-10-24 23:36:34,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:54,626 INFO L124 PetriNetUnfolderBase]: 129279/225923 cut-off events. [2024-10-24 23:36:54,626 INFO L125 PetriNetUnfolderBase]: For 7556/7556 co-relation queries the response was YES. [2024-10-24 23:36:55,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404761 conditions, 225923 events. 129279/225923 cut-off events. For 7556/7556 co-relation queries the response was YES. Maximal size of possible extension queue 4118. Compared 2250720 event pairs, 84624 based on Foata normal form. 22652/214656 useless extension candidates. Maximal degree in co-relation 352262. Up to 175369 conditions per place. [2024-10-24 23:36:56,276 INFO L140 encePairwiseOnDemand]: 139/167 looper letters, 95 selfloop transitions, 3 changer transitions 0/154 dead transitions. [2024-10-24 23:36:56,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 154 transitions, 543 flow [2024-10-24 23:36:56,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2024-10-24 23:36:56,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5194610778443114 [2024-10-24 23:36:56,294 INFO L175 Difference]: Start difference. First operand has 139 places, 167 transitions, 373 flow. Second operand 4 states and 347 transitions. [2024-10-24 23:36:56,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 154 transitions, 543 flow [2024-10-24 23:36:56,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 154 transitions, 543 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:36:56,328 INFO L231 Difference]: Finished difference. Result has 141 places, 143 transitions, 335 flow [2024-10-24 23:36:56,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=141, PETRI_TRANSITIONS=143} [2024-10-24 23:36:56,335 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 2 predicate places. [2024-10-24 23:36:56,335 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 143 transitions, 335 flow [2024-10-24 23:36:56,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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) [2024-10-24 23:36:56,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:56,337 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:56,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:36:56,337 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-10-24 23:36:56,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:56,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1807887998, now seen corresponding path program 1 times [2024-10-24 23:36:56,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:56,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516163512] [2024-10-24 23:36:56,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:56,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:36:56,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:36:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:36:56,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:36:56,477 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 23:36:56,479 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-10-24 23:36:56,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2024-10-24 23:36:56,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2024-10-24 23:36:56,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2024-10-24 23:36:56,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2024-10-24 23:36:56,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2024-10-24 23:36:56,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2024-10-24 23:36:56,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2024-10-24 23:36:56,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2024-10-24 23:36:56,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2024-10-24 23:36:56,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2024-10-24 23:36:56,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2024-10-24 23:36:56,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2024-10-24 23:36:56,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2024-10-24 23:36:56,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2024-10-24 23:36:56,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2024-10-24 23:36:56,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2024-10-24 23:36:56,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2024-10-24 23:36:56,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2024-10-24 23:36:56,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2024-10-24 23:36:56,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2024-10-24 23:36:56,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2024-10-24 23:36:56,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2024-10-24 23:36:56,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2024-10-24 23:36:56,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2024-10-24 23:36:56,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2024-10-24 23:36:56,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2024-10-24 23:36:56,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2024-10-24 23:36:56,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2024-10-24 23:36:56,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2024-10-24 23:36:56,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2024-10-24 23:36:56,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:36:56,489 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 23:36:56,493 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 23:36:56,494 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 23:36:56,598 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-24 23:36:56,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 288 transitions, 660 flow [2024-10-24 23:36:57,132 INFO L124 PetriNetUnfolderBase]: 851/3411 cut-off events. [2024-10-24 23:36:57,132 INFO L125 PetriNetUnfolderBase]: For 602/647 co-relation queries the response was YES. [2024-10-24 23:36:57,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4059 conditions, 3411 events. 851/3411 cut-off events. For 602/647 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 30829 event pairs, 22 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2185. Up to 192 conditions per place. [2024-10-24 23:36:57,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 288 transitions, 660 flow [2024-10-24 23:36:57,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 288 transitions, 660 flow [2024-10-24 23:36:57,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:36:57,265 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;@78861e1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:36:57,265 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-10-24 23:36:57,268 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:36:57,268 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-10-24 23:36:57,269 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:36:57,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:57,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 23:36:57,269 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:36:57,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:57,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1222554950, now seen corresponding path program 1 times [2024-10-24 23:36:57,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:57,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872659963] [2024-10-24 23:36:57,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:57,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:57,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:57,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872659963] [2024-10-24 23:36:57,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872659963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:57,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:57,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:36:57,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374118774] [2024-10-24 23:36:57,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:57,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:57,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:57,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:57,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:57,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 288 [2024-10-24 23:36:57,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 288 transitions, 660 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) [2024-10-24 23:36:57,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:57,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 288 [2024-10-24 23:36:57,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand