./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd --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 33eb4dcd0a621d6c4bb6626c0e74463917de75952c777f271b8d23f0dedf14cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:50:55,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:50:55,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 12:50:55,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:50:55,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:50:55,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:50:55,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:50:55,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:50:55,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:50:55,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:50:55,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:50:55,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:50:55,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:50:55,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:50:55,743 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:50:55,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:50:55,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:50:55,744 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:50:55,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:50:55,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:50:55,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:50:55,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:50:55,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:50:55,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:50:55,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:50:55,747 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 12:50:55,748 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:50:55,748 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:50:55,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:50:55,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:50:55,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:50:55,748 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:50:55,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:50:55,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:50:55,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:50:55,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:50:55,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:50:55,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:50:55,749 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:50:55,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:50:55,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:50:55,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:50:55,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:50:55,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:50:55,749 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_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd 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 -> 33eb4dcd0a621d6c4bb6626c0e74463917de75952c777f271b8d23f0dedf14cb [2024-11-13 12:50:56,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:50:56,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:50:56,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:50:56,148 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:50:56,149 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:50:56,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i Unable to find full path for "g++" [2024-11-13 12:50:58,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:50:58,746 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:50:58,747 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i [2024-11-13 12:50:58,769 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/data/d2bfc4f58/3a290ef1a0e646d1ba7cf86506e7711a/FLAG429b0488e [2024-11-13 12:50:58,787 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/data/d2bfc4f58/3a290ef1a0e646d1ba7cf86506e7711a [2024-11-13 12:50:58,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:50:58,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:50:58,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:50:58,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:50:58,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:50:58,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:50:58" (1/1) ... [2024-11-13 12:50:58,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7586f074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:58, skipping insertion in model container [2024-11-13 12:50:58,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:50:58" (1/1) ... [2024-11-13 12:50:58,841 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:50:59,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:50:59,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:50:59,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:50:59,546 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:50:59,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59 WrapperNode [2024-11-13 12:50:59,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:50:59,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:50:59,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:50:59,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:50:59,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,624 INFO L138 Inliner]: procedures = 267, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 104 [2024-11-13 12:50:59,628 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:50:59,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:50:59,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:50:59,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:50:59,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,697 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [8, 5]. 62 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [8, 1]. The 2 writes are split as follows [0, 2]. [2024-11-13 12:50:59,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:50:59,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:50:59,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:50:59,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:50:59,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (1/1) ... [2024-11-13 12:50:59,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:50:59,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:50:59,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:50:59,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:50:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 12:50:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 12:50:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:50:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 12:50:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 12:50:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:50:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 12:50:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:50:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:50:59,806 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 12:51:00,016 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:51:00,018 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:51:00,341 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:51:00,341 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:51:00,928 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:51:00,929 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 12:51:00,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:00 BoogieIcfgContainer [2024-11-13 12:51:00,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:51:00,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:51:00,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:51:00,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:51:00,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:50:58" (1/3) ... [2024-11-13 12:51:00,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd9dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:51:00, skipping insertion in model container [2024-11-13 12:51:00,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:59" (2/3) ... [2024-11-13 12:51:00,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd9dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:51:00, skipping insertion in model container [2024-11-13 12:51:00,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:00" (3/3) ... [2024-11-13 12:51:00,945 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46a-escape_nr.i [2024-11-13 12:51:00,966 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:51:00,967 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_46a-escape_nr.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-13 12:51:00,968 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:51:01,042 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 12:51:01,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2024-11-13 12:51:01,151 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-13 12:51:01,154 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 12:51:01,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-13 12:51:01,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2024-11-13 12:51:01,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-11-13 12:51:01,182 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:51:01,203 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;@36e66119, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:51:01,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 12:51:01,217 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:51:01,218 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-13 12:51:01,218 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:51:01,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:51:01,219 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 12:51:01,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 12:51:01,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:01,226 INFO L85 PathProgramCache]: Analyzing trace with hash -26920555, now seen corresponding path program 1 times [2024-11-13 12:51:01,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:01,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094636556] [2024-11-13 12:51:01,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:01,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:01,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094636556] [2024-11-13 12:51:01,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094636556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:01,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:01,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:51:01,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914889284] [2024-11-13 12:51:01,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:01,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:51:01,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:01,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:51:01,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:51:01,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-11-13 12:51:01,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-13 12:51:01,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:51:01,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-11-13 12:51:01,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:51:02,094 INFO L124 PetriNetUnfolderBase]: 44/132 cut-off events. [2024-11-13 12:51:02,095 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:51:02,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 132 events. 44/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 495 event pairs, 16 based on Foata normal form. 7/125 useless extension candidates. Maximal degree in co-relation 234. Up to 43 conditions per place. [2024-11-13 12:51:02,099 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 20 selfloop transitions, 6 changer transitions 5/36 dead transitions. [2024-11-13 12:51:02,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 137 flow [2024-11-13 12:51:02,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:51:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:51:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 63 transitions. [2024-11-13 12:51:02,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5478260869565217 [2024-11-13 12:51:02,116 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 5 states and 63 transitions. [2024-11-13 12:51:02,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 137 flow [2024-11-13 12:51:02,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 36 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:51:02,126 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 80 flow [2024-11-13 12:51:02,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=80, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2024-11-13 12:51:02,133 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 7 predicate places. [2024-11-13 12:51:02,133 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 80 flow [2024-11-13 12:51:02,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-13 12:51:02,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:51:02,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 12:51:02,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:51:02,134 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 12:51:02,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:02,135 INFO L85 PathProgramCache]: Analyzing trace with hash -26308046, now seen corresponding path program 1 times [2024-11-13 12:51:02,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:02,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996534998] [2024-11-13 12:51:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:02,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:51:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:51:02,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:51:02,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996534998] [2024-11-13 12:51:02,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996534998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:51:02,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:51:02,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:51:02,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381972081] [2024-11-13 12:51:02,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:51:02,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:51:02,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:51:02,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:51:02,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:51:02,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-11-13 12:51:02,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2024-11-13 12:51:02,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:51:02,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-11-13 12:51:02,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:51:02,857 INFO L124 PetriNetUnfolderBase]: 36/120 cut-off events. [2024-11-13 12:51:02,857 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-13 12:51:02,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 120 events. 36/120 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 466 event pairs, 7 based on Foata normal form. 6/126 useless extension candidates. Maximal degree in co-relation 266. Up to 37 conditions per place. [2024-11-13 12:51:02,859 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 21 selfloop transitions, 10 changer transitions 7/44 dead transitions. [2024-11-13 12:51:02,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 222 flow [2024-11-13 12:51:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:51:02,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 12:51:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 86 transitions. [2024-11-13 12:51:02,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4673913043478261 [2024-11-13 12:51:02,861 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 80 flow. Second operand 8 states and 86 transitions. [2024-11-13 12:51:02,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 222 flow [2024-11-13 12:51:02,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 44 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 12:51:02,864 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 146 flow [2024-11-13 12:51:02,865 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=146, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2024-11-13 12:51:02,865 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2024-11-13 12:51:02,866 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 146 flow [2024-11-13 12:51:02,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2024-11-13 12:51:02,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:51:02,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:51:02,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:51:02,866 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 12:51:02,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:51:02,867 INFO L85 PathProgramCache]: Analyzing trace with hash -834536928, now seen corresponding path program 1 times [2024-11-13 12:51:02,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:51:02,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427045909] [2024-11-13 12:51:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:51:02,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:51:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:51:02,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:51:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:51:03,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:51:03,036 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:51:03,038 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-13 12:51:03,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-13 12:51:03,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-13 12:51:03,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-13 12:51:03,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-13 12:51:03,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-13 12:51:03,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-13 12:51:03,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:51:03,042 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 12:51:03,087 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 12:51:03,087 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:51:03,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:51:03 BasicIcfg [2024-11-13 12:51:03,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:51:03,100 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:51:03,100 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:51:03,100 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:51:03,101 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:00" (3/4) ... [2024-11-13 12:51:03,102 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 12:51:03,157 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:51:03,157 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:51:03,158 INFO L158 Benchmark]: Toolchain (without parser) took 4365.97ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 76.6MB in the end (delta: 14.5MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-11-13 12:51:03,159 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:51:03,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.04ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 63.1MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:51:03,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.84ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 60.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:51:03,161 INFO L158 Benchmark]: Boogie Preprocessor took 88.38ms. Allocated memory is still 117.4MB. Free memory was 60.9MB in the beginning and 58.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:51:03,162 INFO L158 Benchmark]: RCFGBuilder took 1211.98ms. Allocated memory is still 117.4MB. Free memory was 58.7MB in the beginning and 86.7MB in the end (delta: -28.0MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2024-11-13 12:51:03,162 INFO L158 Benchmark]: TraceAbstraction took 2164.92ms. Allocated memory is still 117.4MB. Free memory was 85.9MB in the beginning and 78.5MB in the end (delta: 7.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2024-11-13 12:51:03,162 INFO L158 Benchmark]: Witness Printer took 57.78ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:51:03,166 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.04ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 63.1MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.84ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 60.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.38ms. Allocated memory is still 117.4MB. Free memory was 60.9MB in the beginning and 58.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1211.98ms. Allocated memory is still 117.4MB. Free memory was 58.7MB in the beginning and 86.7MB in the end (delta: -28.0MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2164.92ms. Allocated memory is still 117.4MB. Free memory was 85.9MB in the beginning and 78.5MB in the end (delta: 7.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Witness Printer took 57.78ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 934]: integer overflow possible integer overflow possible We found a FailurePath: [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_t id; [L930] 0 int i = __VERIFIER_nondet_int(); [L930] 0 int i = __VERIFIER_nondet_int(); [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [\old(arg)={25:0}, i={25:0}, id=-1, mutex1={1:0}] [L934] EXPR 0 \read(i) [L934] 0 i++ VAL [\old(arg)={25:0}, i={25:0}, id=-1, mutex1={1:0}] - UnprovableResult [Line: 934]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 7 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 0.7s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-13 12:51:03,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d3aee03-ccf7-4e2a-9f0c-0284adeb2c54/bin/uautomizer-verify-qhAvR1uOyd/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)