./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.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_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:13:49,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:13:50,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 14:13:50,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:13:50,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:13:50,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:13:50,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:13:50,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:13:50,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:13:50,093 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:13:50,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:13:50,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:13:50,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:13:50,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:13:50,094 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:13:50,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:13:50,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:13:50,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:13:50,096 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:13:50,096 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:13:50,096 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:13:50,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:13:50,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:13:50,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:13:50,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:13:50,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:13:50,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:13:50,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:13:50,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:13:50,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:13:50,098 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:13:50,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:13:50,098 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_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2024-12-02 14:13:50,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:13:50,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:13:50,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:13:50,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:13:50,403 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:13:50,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-12-02 14:13:53,271 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/data/65c4e4e23/71c05806756e4101a6f8250e1bb556bd/FLAGd73196aef [2024-12-02 14:13:53,522 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:13:53,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-12-02 14:13:53,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/data/65c4e4e23/71c05806756e4101a6f8250e1bb556bd/FLAGd73196aef [2024-12-02 14:13:53,554 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/data/65c4e4e23/71c05806756e4101a6f8250e1bb556bd [2024-12-02 14:13:53,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:13:53,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:13:53,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:13:53,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:13:53,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:13:53,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:53" (1/1) ... [2024-12-02 14:13:53,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e328e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:53, skipping insertion in model container [2024-12-02 14:13:53,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:53" (1/1) ... [2024-12-02 14:13:53,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:13:54,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:13:54,129 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:13:54,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:13:54,242 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:13:54,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54 WrapperNode [2024-12-02 14:13:54,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:13:54,243 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:13:54,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:13:54,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:13:54,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,292 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 377 [2024-12-02 14:13:54,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:13:54,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:13:54,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:13:54,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:13:54,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,307 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,335 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 5, 5, 2, 5, 5, 2, 23, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 5, 0, 5, 5, 0, 0, 0]. The 15 writes are split as follows [0, 0, 0, 1, 0, 0, 1, 12, 1]. [2024-12-02 14:13:54,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,335 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,353 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:13:54,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:13:54,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:13:54,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:13:54,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (1/1) ... [2024-12-02 14:13:54,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:13:54,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:13:54,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:13:54,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9383d87f-277a-434a-9448-37a65f5b00ee/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:13:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 14:13:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 14:13:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 14:13:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-12-02 14:13:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 14:13:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 14:13:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-12-02 14:13:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 14:13:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 14:13:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-12-02 14:13:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 14:13:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:13:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:13:54,430 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 14:13:54,626 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:13:54,628 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:13:55,161 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 14:13:55,161 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:13:55,504 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:13:55,505 INFO L312 CfgBuilder]: Removed 18 assume(true) statements. [2024-12-02 14:13:55,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:55 BoogieIcfgContainer [2024-12-02 14:13:55,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:13:55,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:13:55,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:13:55,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:13:55,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:13:53" (1/3) ... [2024-12-02 14:13:55,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469e8bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:55, skipping insertion in model container [2024-12-02 14:13:55,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:54" (2/3) ... [2024-12-02 14:13:55,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@469e8bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:55, skipping insertion in model container [2024-12-02 14:13:55,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:55" (3/3) ... [2024-12-02 14:13:55,516 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2024-12-02 14:13:55,536 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:13:55,537 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_83-list2_racing1.i that has 4 procedures, 130 locations, 1 initial locations, 18 loop locations, and 20 error locations. [2024-12-02 14:13:55,538 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 14:13:55,652 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-12-02 14:13:55,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 167 transitions, 373 flow [2024-12-02 14:13:55,896 INFO L124 PetriNetUnfolderBase]: 114/584 cut-off events. [2024-12-02 14:13:55,899 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-12-02 14:13:55,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 584 events. 114/584 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3705 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 300. Up to 16 conditions per place. [2024-12-02 14:13:55,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 167 transitions, 373 flow [2024-12-02 14:13:55,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 167 transitions, 373 flow [2024-12-02 14:13:55,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:13:55,947 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;@4310c07c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:13:55,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-12-02 14:13:55,958 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 14:13:55,958 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-12-02 14:13:55,958 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:13:55,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:13:55,959 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 14:13:55,960 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)] === [2024-12-02 14:13:55,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:13:55,966 INFO L85 PathProgramCache]: Analyzing trace with hash 966605881, now seen corresponding path program 1 times [2024-12-02 14:13:55,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:13:55,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322618089] [2024-12-02 14:13:55,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:13:55,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:13:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:13:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:13:56,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:13:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322618089] [2024-12-02 14:13:56,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322618089] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:13:56,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:13:56,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:13:56,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391888082] [2024-12-02 14:13:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:13:56,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:13:56,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:13:56,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:13:56,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:13:56,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 167 [2024-12-02 14:13:56,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 167 transitions, 373 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:13:56,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:13:56,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 167 [2024-12-02 14:13:56,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:14:14,389 INFO L124 PetriNetUnfolderBase]: 129279/225923 cut-off events. [2024-12-02 14:14:14,389 INFO L125 PetriNetUnfolderBase]: For 7556/7556 co-relation queries the response was YES. [2024-12-02 14:14:14,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404761 conditions, 225923 events. 129279/225923 cut-off events. For 7556/7556 co-relation queries the response was YES. Maximal size of possible extension queue 4118. Compared 2251350 event pairs, 84624 based on Foata normal form. 22652/214662 useless extension candidates. Maximal degree in co-relation 352262. Up to 175369 conditions per place. [2024-12-02 14:14:15,414 INFO L140 encePairwiseOnDemand]: 139/167 looper letters, 95 selfloop transitions, 3 changer transitions 0/154 dead transitions. [2024-12-02 14:14:15,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 154 transitions, 543 flow [2024-12-02 14:14:15,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:14:15,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 14:14:15,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2024-12-02 14:14:15,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5194610778443114 [2024-12-02 14:14:15,428 INFO L175 Difference]: Start difference. First operand has 139 places, 167 transitions, 373 flow. Second operand 4 states and 347 transitions. [2024-12-02 14:14:15,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 154 transitions, 543 flow [2024-12-02 14:14:15,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 154 transitions, 543 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 14:14:15,488 INFO L231 Difference]: Finished difference. Result has 141 places, 143 transitions, 335 flow [2024-12-02 14:14:15,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=141, PETRI_TRANSITIONS=143} [2024-12-02 14:14:15,495 INFO L279 CegarLoopForPetriNet]: 139 programPoint places, 2 predicate places. [2024-12-02 14:14:15,495 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 143 transitions, 335 flow [2024-12-02 14:14:15,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:14:15,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:14:15,496 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 14:14:15,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:14:15,496 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2024-12-02 14:14:15,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:15,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1598900519, now seen corresponding path program 1 times [2024-12-02 14:14:15,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:15,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294497401] [2024-12-02 14:14:15,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:15,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:14:15,554 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:14:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:14:15,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 14:14:15,604 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 14:14:15,606 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-12-02 14:14:15,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2024-12-02 14:14:15,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2024-12-02 14:14:15,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2024-12-02 14:14:15,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2024-12-02 14:14:15,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2024-12-02 14:14:15,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2024-12-02 14:14:15,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2024-12-02 14:14:15,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2024-12-02 14:14:15,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2024-12-02 14:14:15,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2024-12-02 14:14:15,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2024-12-02 14:14:15,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2024-12-02 14:14:15,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2024-12-02 14:14:15,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2024-12-02 14:14:15,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2024-12-02 14:14:15,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2024-12-02 14:14:15,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2024-12-02 14:14:15,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2024-12-02 14:14:15,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2024-12-02 14:14:15,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2024-12-02 14:14:15,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2024-12-02 14:14:15,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:14:15,613 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 14:14:15,616 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 14:14:15,616 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 14:14:15,883 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-12-02 14:14:15,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 288 transitions, 660 flow [2024-12-02 14:14:16,368 INFO L124 PetriNetUnfolderBase]: 851/3411 cut-off events. [2024-12-02 14:14:16,368 INFO L125 PetriNetUnfolderBase]: For 602/647 co-relation queries the response was YES. [2024-12-02 14:14:16,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4059 conditions, 3411 events. 851/3411 cut-off events. For 602/647 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 30864 event pairs, 22 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2185. Up to 192 conditions per place. [2024-12-02 14:14:16,417 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 288 transitions, 660 flow [2024-12-02 14:14:16,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 288 transitions, 660 flow [2024-12-02 14:14:16,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:14:16,464 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;@4310c07c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:14:16,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-12-02 14:14:16,468 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 14:14:16,468 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-12-02 14:14:16,468 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:14:16,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:14:16,468 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 14:14:16,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-12-02 14:14:16,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:14:16,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1235825601, now seen corresponding path program 1 times [2024-12-02 14:14:16,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:14:16,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728938889] [2024-12-02 14:14:16,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:14:16,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:14:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:14:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:14:16,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:14:16,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728938889] [2024-12-02 14:14:16,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728938889] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:14:16,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:14:16,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:14:16,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573139737] [2024-12-02 14:14:16,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:14:16,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:14:16,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:14:16,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:14:16,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:14:16,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 288 [2024-12-02 14:14:16,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 288 transitions, 660 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:14:16,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:14:16,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 288 [2024-12-02 14:14:16,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand