./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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_84-list2_racing2.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 f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:46:38,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:46:38,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:46:38,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:46:38,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:46:38,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:46:38,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:46:38,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:46:38,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:46:38,203 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:46:38,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:46:38,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:46:38,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:46:38,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:46:38,204 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:46:38,204 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:46:38,205 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:46:38,206 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:46:38,206 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:46:38,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:46:38,206 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:46:38,206 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:46:38,206 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:46:38,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:46:38,206 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:46:38,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:46:38,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:46:38,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:46:38,207 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:46:38,207 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:46:38,207 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:46:38,207 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:46:38,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:46:38,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:46:38,208 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:46:38,208 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:46:38,208 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:46:38,208 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 -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2025-02-06 18:46:38,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:46:38,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:46:38,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:46:38,513 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:46:38,513 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:46:38,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2025-02-06 18:46:39,849 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5485755c/5f74462f678c46b68877c7bbb6f2947c/FLAGb3d809ce4 [2025-02-06 18:46:40,202 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:46:40,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2025-02-06 18:46:40,223 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5485755c/5f74462f678c46b68877c7bbb6f2947c/FLAGb3d809ce4 [2025-02-06 18:46:40,418 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5485755c/5f74462f678c46b68877c7bbb6f2947c [2025-02-06 18:46:40,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:46:40,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:46:40,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:46:40,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:46:40,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:46:40,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:40,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efc62f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40, skipping insertion in model container [2025-02-06 18:46:40,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:40,476 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:46:40,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:46:40,849 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:46:40,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:46:40,997 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:46:40,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40 WrapperNode [2025-02-06 18:46:40,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:46:40,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:46:41,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:46:41,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:46:41,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,067 INFO L138 Inliner]: procedures = 280, calls = 99, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 409 [2025-02-06 18:46:41,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:46:41,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:46:41,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:46:41,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:46:41,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,086 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,115 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 28, 2, 5, 5, 5, 5, 2, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 0, 5, 5, 5, 5, 0, 0]. The 17 writes are split as follows [0, 14, 1, 0, 0, 0, 0, 1, 1]. [2025-02-06 18:46:41,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,136 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:46:41,161 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:46:41,162 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:46:41,162 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:46:41,163 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (1/1) ... [2025-02-06 18:46:41,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:46:41,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:41,200 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) [2025-02-06 18:46:41,205 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 [2025-02-06 18:46:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:46:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 18:46:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 18:46:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 18:46:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 18:46:41,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 18:46:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 18:46:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 18:46:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 18:46:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 18:46:41,229 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-02-06 18:46:41,230 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-02-06 18:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 18:46:41,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 18:46:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 18:46:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 18:46:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 18:46:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 18:46:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-02-06 18:46:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-02-06 18:46:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:46:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:46:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:46:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 18:46:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 18:46:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 18:46:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 18:46:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 18:46:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 18:46:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:46:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:46:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:46:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 18:46:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2025-02-06 18:46:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2025-02-06 18:46:41,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 18:46:41,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:46:41,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:46:41,238 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:46:41,447 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:46:41,449 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:46:42,100 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-02-06 18:46:42,100 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-02-06 18:46:42,101 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-02-06 18:46:42,101 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-02-06 18:46:42,101 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2025-02-06 18:46:42,101 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055-1: SUMMARY for call ULTIMATE.dealloc(main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset); srcloc: null [2025-02-06 18:46:42,102 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:46:42,102 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:46:42,372 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:46:42,374 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:46:42,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:46:42 BoogieIcfgContainer [2025-02-06 18:46:42,374 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:46:42,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:46:42,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:46:42,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:46:42,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:46:40" (1/3) ... [2025-02-06 18:46:42,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745a92bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:46:42, skipping insertion in model container [2025-02-06 18:46:42,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:40" (2/3) ... [2025-02-06 18:46:42,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745a92bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:46:42, skipping insertion in model container [2025-02-06 18:46:42,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:46:42" (3/3) ... [2025-02-06 18:46:42,386 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2025-02-06 18:46:42,403 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:46:42,406 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_84-list2_racing2.i that has 4 procedures, 146 locations, 1 initial locations, 19 loop locations, and 20 error locations. [2025-02-06 18:46:42,406 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:46:42,552 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2025-02-06 18:46:42,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 185 transitions, 409 flow [2025-02-06 18:46:42,769 INFO L124 PetriNetUnfolderBase]: 130/698 cut-off events. [2025-02-06 18:46:42,772 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-02-06 18:46:42,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 698 events. 130/698 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4411 event pairs, 0 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 357. Up to 16 conditions per place. [2025-02-06 18:46:42,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 185 transitions, 409 flow [2025-02-06 18:46:42,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 185 transitions, 409 flow [2025-02-06 18:46:42,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:46:42,826 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;@2d2a57a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:46:42,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-02-06 18:46:42,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:46:42,835 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-06 18:46:42,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:46:42,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:42,836 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:46:42,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-02-06 18:46:42,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:42,842 INFO L85 PathProgramCache]: Analyzing trace with hash 983849338, now seen corresponding path program 1 times [2025-02-06 18:46:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:42,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90508674] [2025-02-06 18:46:42,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:42,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:42,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:46:43,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:46:43,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:43,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:43,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:43,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90508674] [2025-02-06 18:46:43,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90508674] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:43,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:43,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:46:43,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624950736] [2025-02-06 18:46:43,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:43,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:46:43,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:43,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:46:43,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:46:43,385 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 185 [2025-02-06 18:46:43,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 185 transitions, 409 flow. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:43,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:43,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 185 [2025-02-06 18:46:43,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand