./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB --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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:21:37,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:21:37,257 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:21:37,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:21:37,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:21:37,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:21:37,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:21:37,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:21:37,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:21:37,309 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:21:37,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:21:37,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:21:37,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:21:37,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:21:37,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:21:37,312 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:21:37,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:21:37,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:21:37,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:21:37,314 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:21:37,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:21:37,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:21:37,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:21:37,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:21:37,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:21:37,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:21:37,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:21:37,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:21:37,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:21:37,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:21:37,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:21:37,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:21:37,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:21:37,318 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2024-11-27 20:21:37,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:21:37,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:21:37,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:21:37,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:21:37,694 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:21:37,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-27 20:21:40,777 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/data/fc3cafdee/18086eb75d184917b5b02e598ee79f80/FLAG0a1142f7f [2024-11-27 20:21:41,189 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:21:41,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-27 20:21:41,208 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/data/fc3cafdee/18086eb75d184917b5b02e598ee79f80/FLAG0a1142f7f [2024-11-27 20:21:41,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/data/fc3cafdee/18086eb75d184917b5b02e598ee79f80 [2024-11-27 20:21:41,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:21:41,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:21:41,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:21:41,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:21:41,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:21:41,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:21:41" (1/1) ... [2024-11-27 20:21:41,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d78f847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:41, skipping insertion in model container [2024-11-27 20:21:41,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:21:41" (1/1) ... [2024-11-27 20:21:41,397 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:21:41,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:21:41,945 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:21:42,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:21:42,111 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:21:42,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42 WrapperNode [2024-11-27 20:21:42,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:21:42,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:21:42,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:21:42,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:21:42,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,188 INFO L138 Inliner]: procedures = 279, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 268 [2024-11-27 20:21:42,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:21:42,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:21:42,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:21:42,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:21:42,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,204 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,225 INFO L175 MemorySlicer]: Split 30 memory accesses to 6 slices as follows [2, 2, 5, 2, 5, 14]. 47 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 5, 0, 5, 0]. The 10 writes are split as follows [0, 1, 0, 1, 0, 8]. [2024-11-27 20:21:42,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,237 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:21:42,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:21:42,252 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:21:42,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:21:42,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (1/1) ... [2024-11-27 20:21:42,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:21:42,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:21:42,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:21:42,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0e35b1-39de-469b-804c-a2de8b33e23f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:21:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:21:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:21:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:21:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 20:21:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 20:21:42,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 20:21:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 20:21:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-27 20:21:42,326 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-27 20:21:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:21:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 20:21:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:21:42,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:21:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:21:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 20:21:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 20:21:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 20:21:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-27 20:21:42,327 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-27 20:21:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:21:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:21:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:21:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 20:21:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 20:21:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 20:21:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 20:21:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:21:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:21:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:21:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:21:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:21:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 20:21:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 20:21:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 20:21:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:21:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:21:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:21:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:21:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 20:21:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 20:21:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:21:42,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:21:42,332 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:21:42,556 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:21:42,558 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:21:43,086 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:21:43,087 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:21:43,745 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:21:43,745 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-27 20:21:43,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:21:43 BoogieIcfgContainer [2024-11-27 20:21:43,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:21:43,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:21:43,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:21:43,754 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:21:43,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:21:41" (1/3) ... [2024-11-27 20:21:43,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1586fb5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:21:43, skipping insertion in model container [2024-11-27 20:21:43,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:21:42" (2/3) ... [2024-11-27 20:21:43,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1586fb5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:21:43, skipping insertion in model container [2024-11-27 20:21:43,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:21:43" (3/3) ... [2024-11-27 20:21:43,759 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2024-11-27 20:21:43,779 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:21:43,782 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_81-list_racing.i that has 3 procedures, 73 locations, 1 initial locations, 10 loop locations, and 12 error locations. [2024-11-27 20:21:43,784 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:21:43,897 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-27 20:21:43,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 91 transitions, 202 flow [2024-11-27 20:21:44,066 INFO L124 PetriNetUnfolderBase]: 34/191 cut-off events. [2024-11-27 20:21:44,068 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-27 20:21:44,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 191 events. 34/191 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 804 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 96. Up to 8 conditions per place. [2024-11-27 20:21:44,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 91 transitions, 202 flow [2024-11-27 20:21:44,090 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 91 transitions, 202 flow [2024-11-27 20:21:44,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:21:44,121 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;@11c185d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:21:44,121 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-27 20:21:44,135 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:21:44,135 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-27 20:21:44,135 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:21:44,135 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:44,137 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:21:44,137 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 20:21:44,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash 678941733, now seen corresponding path program 1 times [2024-11-27 20:21:44,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:44,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963939868] [2024-11-27 20:21:44,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:44,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:44,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:44,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:44,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963939868] [2024-11-27 20:21:44,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963939868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:44,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:44,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:44,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044173232] [2024-11-27 20:21:44,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:44,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:21:44,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:44,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:21:44,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:21:44,849 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 91 [2024-11-27 20:21:44,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 91 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2024-11-27 20:21:44,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:44,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 91 [2024-11-27 20:21:44,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:21:46,302 INFO L124 PetriNetUnfolderBase]: 2206/4478 cut-off events. [2024-11-27 20:21:46,302 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-27 20:21:46,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8061 conditions, 4478 events. 2206/4478 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 29332 event pairs, 1078 based on Foata normal form. 336/4065 useless extension candidates. Maximal degree in co-relation 7118. Up to 3485 conditions per place. [2024-11-27 20:21:46,349 INFO L140 encePairwiseOnDemand]: 74/91 looper letters, 56 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-11-27 20:21:46,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 89 transitions, 316 flow [2024-11-27 20:21:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:21:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:21:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 193 transitions. [2024-11-27 20:21:46,367 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5302197802197802 [2024-11-27 20:21:46,369 INFO L175 Difference]: Start difference. First operand has 79 places, 91 transitions, 202 flow. Second operand 4 states and 193 transitions. [2024-11-27 20:21:46,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 89 transitions, 316 flow [2024-11-27 20:21:46,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 89 transitions, 316 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:21:46,385 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 186 flow [2024-11-27 20:21:46,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2024-11-27 20:21:46,392 INFO L279 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2024-11-27 20:21:46,392 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 186 flow [2024-11-27 20:21:46,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2024-11-27 20:21:46,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:46,393 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:21:46,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:21:46,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 20:21:46,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:46,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1352906241, now seen corresponding path program 1 times [2024-11-27 20:21:46,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:46,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415318933] [2024-11-27 20:21:46,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:46,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:21:46,512 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:21:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:21:46,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:21:46,612 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:21:46,614 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-27 20:21:46,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-27 20:21:46,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-27 20:21:46,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-27 20:21:46,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-27 20:21:46,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 18 remaining) [2024-11-27 20:21:46,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-27 20:21:46,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-27 20:21:46,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-27 20:21:46,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-27 20:21:46,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:21:46,621 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-27 20:21:46,626 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 20:21:46,627 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-27 20:21:46,733 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-27 20:21:46,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 151 transitions, 346 flow [2024-11-27 20:21:46,843 INFO L124 PetriNetUnfolderBase]: 135/659 cut-off events. [2024-11-27 20:21:46,844 INFO L125 PetriNetUnfolderBase]: For 72/78 co-relation queries the response was YES. [2024-11-27 20:21:46,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 659 events. 135/659 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4161 event pairs, 2 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 418. Up to 32 conditions per place. [2024-11-27 20:21:46,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 151 transitions, 346 flow [2024-11-27 20:21:46,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 151 transitions, 346 flow [2024-11-27 20:21:46,863 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:21:46,864 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;@11c185d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:21:46,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-27 20:21:46,872 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:21:46,872 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-27 20:21:46,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:21:46,873 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:21:46,873 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:21:46,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-27 20:21:46,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:21:46,875 INFO L85 PathProgramCache]: Analyzing trace with hash 821186033, now seen corresponding path program 1 times [2024-11-27 20:21:46,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:21:46,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616021273] [2024-11-27 20:21:46,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:21:46,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:21:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:21:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:21:47,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:21:47,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616021273] [2024-11-27 20:21:47,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616021273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:21:47,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:21:47,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:21:47,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288582215] [2024-11-27 20:21:47,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:21:47,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:21:47,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:21:47,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:21:47,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:21:47,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 151 [2024-11-27 20:21:47,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 151 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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) [2024-11-27 20:21:47,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:21:47,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 151 [2024-11-27 20:21:47,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand