./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:05:20,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:05:20,781 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 00:05:20,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:05:20,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:05:20,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:05:20,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:05:20,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:05:20,812 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:05:20,812 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:05:20,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:05:20,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:05:20,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:05:20,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:05:20,813 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:05:20,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:05:20,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:05:20,813 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:05:20,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:05:20,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:05:20,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:05:20,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:05:20,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:05:20,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:05:20,814 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:05:20,814 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:05:20,815 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:05:20,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:05:20,815 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:05:20,815 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:05:20,815 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:05:20,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:05:20,815 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:05:20,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:05:20,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:05:20,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:05:20,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:05:20,816 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:05:20,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:05:20,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:05:20,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:05:20,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:05:20,817 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:05:20,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:05:20,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:05:20,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:05:20,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:05:20,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:05:20,817 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:05:20,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:05:20,818 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_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2024-11-24 00:05:21,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:05:21,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:05:21,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:05:21,107 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:05:21,107 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:05:21,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-24 00:05:23,976 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/data/66187e80a/bf7b02878a0b477d8b0717ae7139c226/FLAGa63c76d0e [2024-11-24 00:05:24,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:05:24,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2024-11-24 00:05:24,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/data/66187e80a/bf7b02878a0b477d8b0717ae7139c226/FLAGa63c76d0e [2024-11-24 00:05:24,376 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/data/66187e80a/bf7b02878a0b477d8b0717ae7139c226 [2024-11-24 00:05:24,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:05:24,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:05:24,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:05:24,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:05:24,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:05:24,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:05:24" (1/1) ... [2024-11-24 00:05:24,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8d6cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:24, skipping insertion in model container [2024-11-24 00:05:24,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:05:24" (1/1) ... [2024-11-24 00:05:24,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:05:24,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:05:24,958 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:05:25,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:05:25,088 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:05:25,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25 WrapperNode [2024-11-24 00:05:25,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:05:25,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:05:25,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:05:25,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:05:25,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,145 INFO L138 Inliner]: procedures = 280, calls = 99, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 421 [2024-11-24 00:05:25,145 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:05:25,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:05:25,146 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:05:25,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:05:25,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,195 INFO L175 MemorySlicer]: Split 56 memory accesses to 9 slices as follows [2, 5, 5, 5, 5, 2, 28, 2, 2]. 50 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 5, 5, 5, 0, 0, 0, 0]. The 17 writes are split as follows [0, 0, 0, 0, 0, 1, 14, 1, 1]. [2024-11-24 00:05:25,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,195 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,212 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:05:25,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:05:25,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:05:25,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:05:25,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (1/1) ... [2024-11-24 00:05:25,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:05:25,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:05:25,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:05:25,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_349101b5-1f89-4807-bf5f-332c3ee2accd/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:05:25,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:05:25,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:05:25,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:05:25,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:05:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:05:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:05:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 00:05:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 00:05:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 00:05:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 00:05:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-24 00:05:25,335 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-24 00:05:25,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:05:25,335 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:05:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:05:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:05:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:05:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:05:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:05:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:05:25,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:05:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 00:05:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 00:05:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-24 00:05:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-24 00:05:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:05:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:05:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:05:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 00:05:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 00:05:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-24 00:05:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-24 00:05:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:05:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:05:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:05:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:05:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:05:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:05:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:05:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 00:05:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 00:05:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:05:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:05:25,347 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:05:25,627 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:05:25,629 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:05:26,394 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:05:26,396 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:05:26,835 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:05:26,837 INFO L312 CfgBuilder]: Removed 19 assume(true) statements. [2024-11-24 00:05:26,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:05:26 BoogieIcfgContainer [2024-11-24 00:05:26,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:05:26,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:05:26,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:05:26,846 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:05:26,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:05:24" (1/3) ... [2024-11-24 00:05:26,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2790c1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:05:26, skipping insertion in model container [2024-11-24 00:05:26,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:05:25" (2/3) ... [2024-11-24 00:05:26,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2790c1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:05:26, skipping insertion in model container [2024-11-24 00:05:26,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:05:26" (3/3) ... [2024-11-24 00:05:26,849 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2024-11-24 00:05:26,867 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:05:26,869 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_84-list2_racing2.i that has 4 procedures, 140 locations, 1 initial locations, 19 loop locations, and 20 error locations. [2024-11-24 00:05:26,869 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:05:27,005 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-24 00:05:27,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 179 transitions, 397 flow [2024-11-24 00:05:27,324 INFO L124 PetriNetUnfolderBase]: 130/680 cut-off events. [2024-11-24 00:05:27,326 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-24 00:05:27,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 680 events. 130/680 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4250 event pairs, 0 based on Foata normal form. 0/468 useless extension candidates. Maximal degree in co-relation 348. Up to 16 conditions per place. [2024-11-24 00:05:27,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 179 transitions, 397 flow [2024-11-24 00:05:27,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 179 transitions, 397 flow [2024-11-24 00:05:27,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:05:27,387 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;@e976235, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:05:27,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-24 00:05:27,397 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:05:27,398 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-24 00:05:27,398 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:05:27,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:05:27,399 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-24 00:05:27,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-11-24 00:05:27,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:05:27,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1073681450, now seen corresponding path program 1 times [2024-11-24 00:05:27,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:05:27,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318068641] [2024-11-24 00:05:27,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:05:27,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:05:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:05:27,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:05:27,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:05:27,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318068641] [2024-11-24 00:05:27,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318068641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:05:27,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:05:27,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:05:27,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192941763] [2024-11-24 00:05:27,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:05:27,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:05:27,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:05:27,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:05:27,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:05:27,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 179 [2024-11-24 00:05:27,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 179 transitions, 397 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:05:27,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:05:27,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 179 [2024-11-24 00:05:27,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand