./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.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_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/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_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/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_b076f7e1-27a9-4551-9453-94029b392123/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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:38:55,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:38:55,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 00:38:55,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:38:55,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:38:55,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:38:55,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:38:55,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:38:55,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:38:55,437 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:38:55,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:38:55,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:38:55,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:38:55,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:38:55,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:38:55,439 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:38:55,440 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:38:55,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:38:55,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:38:55,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:38:55,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:38:55,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:38:55,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:38:55,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:38:55,442 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:38:55,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:38:55,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:38:55,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:38:55,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:38:55,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:38:55,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:38:55,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:38:55,444 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_b076f7e1-27a9-4551-9453-94029b392123/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 -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2024-11-24 00:38:55,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:38:55,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:38:55,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:38:55,775 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:38:55,775 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:38:55,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2024-11-24 00:38:58,776 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/data/fa14202e3/3c6c4173c8ea43ada15651411261efc3/FLAG219975229 [2024-11-24 00:38:59,241 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:38:59,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2024-11-24 00:38:59,268 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/data/fa14202e3/3c6c4173c8ea43ada15651411261efc3/FLAG219975229 [2024-11-24 00:38:59,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/data/fa14202e3/3c6c4173c8ea43ada15651411261efc3 [2024-11-24 00:38:59,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:38:59,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:38:59,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:38:59,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:38:59,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:38:59,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:38:59,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b33672a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59, skipping insertion in model container [2024-11-24 00:38:59,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:38:59,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:38:59,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:38:59,859 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:38:59,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:38:59,952 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:38:59,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59 WrapperNode [2024-11-24 00:38:59,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:38:59,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:38:59,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:38:59,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:38:59,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:38:59,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,008 INFO L138 Inliner]: procedures = 171, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 118 [2024-11-24 00:39:00,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:39:00,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:39:00,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:39:00,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:39:00,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,024 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,040 INFO L175 MemorySlicer]: Split 18 memory accesses to 4 slices as follows [2, 5, 5, 6]. 33 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 5, 1]. The 2 writes are split as follows [0, 0, 0, 2]. [2024-11-24 00:39:00,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,049 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:39:00,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:39:00,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:39:00,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:39:00,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (1/1) ... [2024-11-24 00:39:00,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:39:00,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:39:00,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:39:00,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:39:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:39:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:39:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 00:39:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 00:39:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:39:00,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:39:00,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:39:00,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:39:00,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:39:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:39:00,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:39:00,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:39:00,137 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 00:39:00,284 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:39:00,286 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:39:00,629 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:39:00,629 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:39:01,220 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:39:01,221 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 00:39:01,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:39:01 BoogieIcfgContainer [2024-11-24 00:39:01,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:39:01,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:39:01,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:39:01,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:39:01,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:38:59" (1/3) ... [2024-11-24 00:39:01,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed6013a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:39:01, skipping insertion in model container [2024-11-24 00:39:01,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:38:59" (2/3) ... [2024-11-24 00:39:01,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed6013a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:39:01, skipping insertion in model container [2024-11-24 00:39:01,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:39:01" (3/3) ... [2024-11-24 00:39:01,237 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2024-11-24 00:39:01,256 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:39:01,258 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_46-escape_racefree.i that has 2 procedures, 41 locations, 1 initial locations, 4 loop locations, and 4 error locations. [2024-11-24 00:39:01,260 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:39:01,324 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 00:39:01,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 48 transitions, 103 flow [2024-11-24 00:39:01,422 INFO L124 PetriNetUnfolderBase]: 8/47 cut-off events. [2024-11-24 00:39:01,425 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:39:01,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 47 events. 8/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 109 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 43. Up to 3 conditions per place. [2024-11-24 00:39:01,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 48 transitions, 103 flow [2024-11-24 00:39:01,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 45 transitions, 93 flow [2024-11-24 00:39:01,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:39:01,471 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;@545dc2ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:39:01,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-24 00:39:01,493 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:39:01,493 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2024-11-24 00:39:01,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:39:01,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:39:01,494 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:01,495 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-24 00:39:01,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:01,502 INFO L85 PathProgramCache]: Analyzing trace with hash -14141470, now seen corresponding path program 1 times [2024-11-24 00:39:01,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:01,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341390476] [2024-11-24 00:39:01,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:01,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:02,297 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 00:39:02,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:02,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341390476] [2024-11-24 00:39:02,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341390476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:39:02,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:39:02,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:39:02,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249184303] [2024-11-24 00:39:02,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:39:02,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:39:02,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:02,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:39:02,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:39:02,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2024-11-24 00:39:02,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 45 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 00:39:02,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:39:02,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2024-11-24 00:39:02,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:39:02,732 INFO L124 PetriNetUnfolderBase]: 85/307 cut-off events. [2024-11-24 00:39:02,732 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:39:02,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513 conditions, 307 events. 85/307 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1411 event pairs, 8 based on Foata normal form. 64/363 useless extension candidates. Maximal degree in co-relation 504. Up to 100 conditions per place. [2024-11-24 00:39:02,736 INFO L140 encePairwiseOnDemand]: 31/48 looper letters, 33 selfloop transitions, 6 changer transitions 11/62 dead transitions. [2024-11-24 00:39:02,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 62 transitions, 221 flow [2024-11-24 00:39:02,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:39:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:39:02,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 164 transitions. [2024-11-24 00:39:02,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2024-11-24 00:39:02,753 INFO L175 Difference]: Start difference. First operand has 41 places, 45 transitions, 93 flow. Second operand 6 states and 164 transitions. [2024-11-24 00:39:02,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 62 transitions, 221 flow [2024-11-24 00:39:02,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 62 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:39:02,762 INFO L231 Difference]: Finished difference. Result has 44 places, 29 transitions, 77 flow [2024-11-24 00:39:02,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2024-11-24 00:39:02,769 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-11-24 00:39:02,769 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 29 transitions, 77 flow [2024-11-24 00:39:02,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 00:39:02,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:39:02,770 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:02,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:39:02,771 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-24 00:39:02,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:02,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1999619741, now seen corresponding path program 1 times [2024-11-24 00:39:02,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:02,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107895692] [2024-11-24 00:39:02,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:02,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:03,275 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 00:39:03,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:03,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107895692] [2024-11-24 00:39:03,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107895692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:39:03,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:39:03,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:39:03,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790615949] [2024-11-24 00:39:03,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:39:03,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:39:03,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:03,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:39:03,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:39:03,326 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-24 00:39:03,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 29 transitions, 77 flow. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 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 00:39:03,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:39:03,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-24 00:39:03,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:39:03,734 INFO L124 PetriNetUnfolderBase]: 61/205 cut-off events. [2024-11-24 00:39:03,734 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-24 00:39:03,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 205 events. 61/205 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 846 event pairs, 0 based on Foata normal form. 10/214 useless extension candidates. Maximal degree in co-relation 384. Up to 39 conditions per place. [2024-11-24 00:39:03,736 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 40 selfloop transitions, 9 changer transitions 0/59 dead transitions. [2024-11-24 00:39:03,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 242 flow [2024-11-24 00:39:03,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:39:03,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 00:39:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 191 transitions. [2024-11-24 00:39:03,739 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39791666666666664 [2024-11-24 00:39:03,739 INFO L175 Difference]: Start difference. First operand has 44 places, 29 transitions, 77 flow. Second operand 10 states and 191 transitions. [2024-11-24 00:39:03,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 242 flow [2024-11-24 00:39:03,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 59 transitions, 232 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-24 00:39:03,742 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 90 flow [2024-11-24 00:39:03,742 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=90, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2024-11-24 00:39:03,743 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2024-11-24 00:39:03,744 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 90 flow [2024-11-24 00:39:03,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 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 00:39:03,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:39:03,745 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:39:03,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:39:03,747 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-24 00:39:03,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:39:03,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1858669360, now seen corresponding path program 1 times [2024-11-24 00:39:03,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:39:03,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414951482] [2024-11-24 00:39:03,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:39:03,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:39:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:39:04,094 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 00:39:04,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:39:04,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414951482] [2024-11-24 00:39:04,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414951482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:39:04,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:39:04,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:39:04,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267911858] [2024-11-24 00:39:04,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:39:04,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:39:04,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:39:04,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:39:04,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:39:04,135 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2024-11-24 00:39:04,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 90 flow. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 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 00:39:04,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:39:04,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2024-11-24 00:39:04,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:39:04,424 INFO L124 PetriNetUnfolderBase]: 53/188 cut-off events. [2024-11-24 00:39:04,425 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-24 00:39:04,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 188 events. 53/188 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 756 event pairs, 8 based on Foata normal form. 10/197 useless extension candidates. Maximal degree in co-relation 364. Up to 39 conditions per place. [2024-11-24 00:39:04,426 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2024-11-24 00:39:04,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 242 flow [2024-11-24 00:39:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:39:04,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 00:39:04,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 189 transitions. [2024-11-24 00:39:04,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39375 [2024-11-24 00:39:04,429 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 90 flow. Second operand 10 states and 189 transitions. [2024-11-24 00:39:04,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 242 flow [2024-11-24 00:39:04,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 57 transitions, 229 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-24 00:39:04,431 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-11-24 00:39:04,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2024-11-24 00:39:04,432 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2024-11-24 00:39:04,432 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-11-24 00:39:04,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 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 00:39:04,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-24 00:39:04,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-24 00:39:04,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-24 00:39:04,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-24 00:39:04,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2024-11-24 00:39:04,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-24 00:39:04,437 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-24 00:39:04,437 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-24 00:39:04,437 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-24 00:39:04,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:39:04,437 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-24 00:39:04,443 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-24 00:39:04,443 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:39:04,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:39:04 BasicIcfg [2024-11-24 00:39:04,449 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:39:04,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:39:04,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:39:04,450 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:39:04,451 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:39:01" (3/4) ... [2024-11-24 00:39:04,452 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 00:39:04,455 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-24 00:39:04,460 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-11-24 00:39:04,460 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-24 00:39:04,461 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 00:39:04,461 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-24 00:39:04,552 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:39:04,553 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:39:04,553 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:39:04,554 INFO L158 Benchmark]: Toolchain (without parser) took 5200.97ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 83.3MB in the beginning and 155.8MB in the end (delta: -72.6MB). Peak memory consumption was 96.9MB. Max. memory is 16.1GB. [2024-11-24 00:39:04,554 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:39:04,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.26ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 62.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:39:04,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.37ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 60.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:39:04,555 INFO L158 Benchmark]: Boogie Preprocessor took 50.52ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 58.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:39:04,555 INFO L158 Benchmark]: RCFGBuilder took 1161.01ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 58.2MB in the beginning and 241.3MB in the end (delta: -183.2MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-11-24 00:39:04,555 INFO L158 Benchmark]: TraceAbstraction took 3224.08ms. Allocated memory is still 285.2MB. Free memory was 240.7MB in the beginning and 159.1MB in the end (delta: 81.6MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. [2024-11-24 00:39:04,556 INFO L158 Benchmark]: Witness Printer took 103.09ms. Allocated memory is still 285.2MB. Free memory was 159.1MB in the beginning and 155.8MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:39:04,562 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.26ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 62.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.37ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 60.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.52ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 58.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1161.01ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 58.2MB in the beginning and 241.3MB in the end (delta: -183.2MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3224.08ms. Allocated memory is still 285.2MB. Free memory was 240.7MB in the beginning and 159.1MB in the end (delta: 81.6MB). Peak memory consumption was 79.3MB. Max. memory is 16.1GB. * Witness Printer took 103.09ms. Allocated memory is still 285.2MB. Free memory was 159.1MB in the beginning and 155.8MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 68 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 223 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 205 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 587 IncrementalHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 587 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-24 00:39:04,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b076f7e1-27a9-4551-9453-94029b392123/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE