./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/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_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 16:21:28,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:21:28,241 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:21:28,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:21:28,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:21:28,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:21:28,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:21:28,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:21:28,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:21:28,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:21:28,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:21:28,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:21:28,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:21:28,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:21:28,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:21:28,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:21:28,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:21:28,311 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:21:28,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:21:28,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:21:28,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:21:28,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:21:28,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:21:28,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:21:28,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:21:28,318 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:21:28,318 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:21:28,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:21:28,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:21:28,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:21:28,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:21:28,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:21:28,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:21:28,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:21:28,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:21:28,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:21:28,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:21:28,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:21:28,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:21:28,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:21:28,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:21:28,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:21:28,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:21:28,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:21:28,330 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2024-11-08 16:21:28,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:21:28,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:21:28,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:21:28,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:21:28,719 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:21:28,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i Unable to find full path for "g++" [2024-11-08 16:21:30,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:21:31,213 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:21:31,214 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/sv-benchmarks/c/goblint-regression/28-race_reach_81-list_racing.i [2024-11-08 16:21:31,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/data/b9878044d/a08f89d1b18e4616b8fbf5e0f9003bc4/FLAGb8552ac32 [2024-11-08 16:21:31,262 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/data/b9878044d/a08f89d1b18e4616b8fbf5e0f9003bc4 [2024-11-08 16:21:31,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:21:31,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:21:31,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:21:31,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:21:31,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:21:31,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:21:31" (1/1) ... [2024-11-08 16:21:31,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a3ccea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:31, skipping insertion in model container [2024-11-08 16:21:31,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:21:31" (1/1) ... [2024-11-08 16:21:31,361 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:21:32,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:21:32,109 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:21:32,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:21:32,325 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:21:32,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32 WrapperNode [2024-11-08 16:21:32,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:21:32,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:21:32,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:21:32,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:21:32,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,434 INFO L138 Inliner]: procedures = 279, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 268 [2024-11-08 16:21:32,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:21:32,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:21:32,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:21:32,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:21:32,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,496 INFO L175 MemorySlicer]: Split 30 memory accesses to 6 slices as follows [2, 5, 5, 2, 14, 2]. 47 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0, 0, 0]. The 10 writes are split as follows [0, 0, 0, 1, 8, 1]. [2024-11-08 16:21:32,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:21:32,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:21:32,535 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:21:32,535 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:21:32,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (1/1) ... [2024-11-08 16:21:32,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:21:32,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:21:32,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:21:32,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_005b7c40-0c98-4440-a9e8-ac6b85e8aa24/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:21:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:21:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:21:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:21:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:21:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 16:21:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 16:21:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 16:21:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-08 16:21:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-08 16:21:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:21:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:21:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:21:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:21:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:21:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:21:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:21:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 16:21:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 16:21:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 16:21:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:21:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:21:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:21:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:21:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:21:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 16:21:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:21:32,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:21:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:21:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 16:21:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 16:21:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 16:21:32,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 16:21:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 16:21:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 16:21:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:21:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:21:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:21:32,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:21:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:21:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 16:21:32,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:21:32,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:21:32,635 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:21:32,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:21:32,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:21:33,520 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:21:33,520 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:21:34,141 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:21:34,141 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-08 16:21:34,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:21:34 BoogieIcfgContainer [2024-11-08 16:21:34,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:21:34,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:21:34,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:21:34,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:21:34,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:21:31" (1/3) ... [2024-11-08 16:21:34,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72372c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:21:34, skipping insertion in model container [2024-11-08 16:21:34,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:21:32" (2/3) ... [2024-11-08 16:21:34,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72372c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:21:34, skipping insertion in model container [2024-11-08 16:21:34,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:21:34" (3/3) ... [2024-11-08 16:21:34,155 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2024-11-08 16:21:34,183 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:21:34,185 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 16:21:34,185 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:21:34,299 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-08 16:21:34,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 103 transitions, 226 flow [2024-11-08 16:21:34,525 INFO L124 PetriNetUnfolderBase]: 48/233 cut-off events. [2024-11-08 16:21:34,526 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 16:21:34,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 233 events. 48/233 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 957 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 117. Up to 8 conditions per place. [2024-11-08 16:21:34,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 103 transitions, 226 flow [2024-11-08 16:21:34,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 103 transitions, 226 flow [2024-11-08 16:21:34,551 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:21:34,559 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;@72190c35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:21:34,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-08 16:21:34,569 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:21:34,570 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-08 16:21:34,570 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:21:34,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:21:34,571 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:21:34,571 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)] === [2024-11-08 16:21:34,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:21:34,578 INFO L85 PathProgramCache]: Analyzing trace with hash -760410598, now seen corresponding path program 1 times [2024-11-08 16:21:34,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:21:34,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997827836] [2024-11-08 16:21:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:21:34,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:21:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:21:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:21:35,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:21:35,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997827836] [2024-11-08 16:21:35,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997827836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:21:35,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:21:35,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:21:35,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761336910] [2024-11-08 16:21:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:21:35,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:21:35,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:21:35,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:21:35,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:21:35,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 103 [2024-11-08 16:21:35,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 103 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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) [2024-11-08 16:21:35,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:21:35,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 103 [2024-11-08 16:21:35,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:21:36,714 INFO L124 PetriNetUnfolderBase]: 2269/4670 cut-off events. [2024-11-08 16:21:36,715 INFO L125 PetriNetUnfolderBase]: For 150/150 co-relation queries the response was YES. [2024-11-08 16:21:36,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8270 conditions, 4670 events. 2269/4670 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 34376 event pairs, 1078 based on Foata normal form. 337/4670 useless extension candidates. Maximal degree in co-relation 7266. Up to 3502 conditions per place. [2024-11-08 16:21:36,765 INFO L140 encePairwiseOnDemand]: 85/103 looper letters, 58 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2024-11-08 16:21:36,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 101 transitions, 344 flow [2024-11-08 16:21:36,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:21:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:21:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2024-11-08 16:21:36,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5728155339805825 [2024-11-08 16:21:36,787 INFO L175 Difference]: Start difference. First operand has 87 places, 103 transitions, 226 flow. Second operand 4 states and 236 transitions. [2024-11-08 16:21:36,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 101 transitions, 344 flow [2024-11-08 16:21:36,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 101 transitions, 344 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:21:36,802 INFO L231 Difference]: Finished difference. Result has 89 places, 90 transitions, 212 flow [2024-11-08 16:21:36,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=89, PETRI_TRANSITIONS=90} [2024-11-08 16:21:36,809 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 2 predicate places. [2024-11-08 16:21:36,811 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 90 transitions, 212 flow [2024-11-08 16:21:36,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 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) [2024-11-08 16:21:36,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:21:36,813 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 16:21:36,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:21:36,814 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)] === [2024-11-08 16:21:36,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:21:36,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2082333670, now seen corresponding path program 1 times [2024-11-08 16:21:36,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:21:36,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098096177] [2024-11-08 16:21:36,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:21:36,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:21:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:21:36,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:21:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:21:37,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:21:37,102 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:21:37,104 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-08 16:21:37,107 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-08 16:21:37,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-08 16:21:37,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-08 16:21:37,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-08 16:21:37,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-08 16:21:37,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-08 16:21:37,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-08 16:21:37,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-08 16:21:37,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-08 16:21:37,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-08 16:21:37,111 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-08 16:21:37,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-08 16:21:37,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 18 remaining) [2024-11-08 16:21:37,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-08 16:21:37,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-08 16:21:37,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-08 16:21:37,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-08 16:21:37,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:21:37,116 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 16:21:37,121 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:21:37,122 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:21:37,234 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-08 16:21:37,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 163 transitions, 370 flow [2024-11-08 16:21:37,391 INFO L124 PetriNetUnfolderBase]: 179/791 cut-off events. [2024-11-08 16:21:37,391 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2024-11-08 16:21:37,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 880 conditions, 791 events. 179/791 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4656 event pairs, 2 based on Foata normal form. 0/525 useless extension candidates. Maximal degree in co-relation 490. Up to 32 conditions per place. [2024-11-08 16:21:37,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 163 transitions, 370 flow [2024-11-08 16:21:37,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 163 transitions, 370 flow [2024-11-08 16:21:37,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:21:37,419 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;@72190c35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:21:37,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-08 16:21:37,427 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:21:37,428 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-08 16:21:37,428 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:21:37,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:21:37,428 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 16:21:37,429 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)] === [2024-11-08 16:21:37,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:21:37,429 INFO L85 PathProgramCache]: Analyzing trace with hash -292388623, now seen corresponding path program 1 times [2024-11-08 16:21:37,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:21:37,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731602392] [2024-11-08 16:21:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:21:37,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:21:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:21:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:21:37,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:21:37,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731602392] [2024-11-08 16:21:37,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731602392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:21:37,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:21:37,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:21:37,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569738783] [2024-11-08 16:21:37,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:21:37,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:21:37,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:21:37,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:21:37,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:21:37,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 163 [2024-11-08 16:21:37,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 163 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2024-11-08 16:21:37,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:21:37,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 163 [2024-11-08 16:21:37,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand