./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/spaghetti.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/spaghetti.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 846f3fa2b3520d0013071e1a40d4401eee84eafe31e419bacc7c09bfb8abae71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:56:24,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:56:24,542 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 02:56:24,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:56:24,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:56:24,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:56:24,606 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:56:24,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:56:24,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:56:24,606 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:56:24,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:56:24,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:56:24,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:56:24,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:56:24,607 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:56:24,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:56:24,608 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:56:24,608 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:56:24,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:56:24,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:56:24,609 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:56:24,609 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:56:24,609 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:56:24,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:56:24,610 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:56:24,610 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:56:24,610 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:56:24,610 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:56:24,610 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:56:24,610 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:56:24,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:24,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:24,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:24,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:24,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:56:24,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:24,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:56:24,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:56:24,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:24,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:56:24,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:56:24,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:56:24,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:56:24,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:56:24,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:56:24,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:56:24,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:56:24,613 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_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 846f3fa2b3520d0013071e1a40d4401eee84eafe31e419bacc7c09bfb8abae71 [2024-11-28 02:56:25,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:56:25,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:56:25,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:56:25,021 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:56:25,021 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:56:25,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/spaghetti.wvr.c [2024-11-28 02:56:28,841 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/data/15707ea96/cc439a81948d46d897d0ecb01b0d170f/FLAGe9e90c450 [2024-11-28 02:56:29,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:56:29,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/sv-benchmarks/c/weaver/spaghetti.wvr.c [2024-11-28 02:56:29,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/data/15707ea96/cc439a81948d46d897d0ecb01b0d170f/FLAGe9e90c450 [2024-11-28 02:56:29,249 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/data/15707ea96/cc439a81948d46d897d0ecb01b0d170f [2024-11-28 02:56:29,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:56:29,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:56:29,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:29,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:56:29,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:56:29,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a5c38d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29, skipping insertion in model container [2024-11-28 02:56:29,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:56:29,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:29,595 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:56:29,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:29,648 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:56:29,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29 WrapperNode [2024-11-28 02:56:29,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:29,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:29,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:56:29,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:56:29,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,701 INFO L138 Inliner]: procedures = 20, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-28 02:56:29,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:29,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:56:29,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:56:29,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:56:29,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,758 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:56:29,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,778 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:56:29,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:56:29,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:56:29,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:56:29,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (1/1) ... [2024-11-28 02:56:29,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:56:29,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:29,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:29,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:56:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:56:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 02:56:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 02:56:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 02:56:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 02:56:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 02:56:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 02:56:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-28 02:56:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-28 02:56:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:56:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:56:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:56:29,885 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:56:29,999 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:56:30,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:56:30,300 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:56:30,300 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:56:30,450 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:56:30,453 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:56:30,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30 BoogieIcfgContainer [2024-11-28 02:56:30,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:56:30,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:56:30,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:56:30,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:56:30,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:29" (1/3) ... [2024-11-28 02:56:30,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5112fd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:30, skipping insertion in model container [2024-11-28 02:56:30,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29" (2/3) ... [2024-11-28 02:56:30,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5112fd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:30, skipping insertion in model container [2024-11-28 02:56:30,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30" (3/3) ... [2024-11-28 02:56:30,475 INFO L128 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-11-28 02:56:30,496 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:56:30,498 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG spaghetti.wvr.c that has 5 procedures, 59 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2024-11-28 02:56:30,498 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:56:30,621 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 02:56:30,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 66 transitions, 160 flow [2024-11-28 02:56:30,766 INFO L124 PetriNetUnfolderBase]: 8/62 cut-off events. [2024-11-28 02:56:30,769 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 02:56:30,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 62 events. 8/62 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-11-28 02:56:30,776 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 66 transitions, 160 flow [2024-11-28 02:56:30,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 61 transitions, 146 flow [2024-11-28 02:56:30,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:56:30,809 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=None, 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;@5bd44f98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:56:30,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 02:56:30,841 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:56:30,841 INFO L124 PetriNetUnfolderBase]: 8/58 cut-off events. [2024-11-28 02:56:30,841 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 02:56:30,841 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:56:30,842 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:30,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-28 02:56:30,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:30,851 INFO L85 PathProgramCache]: Analyzing trace with hash -388729222, now seen corresponding path program 1 times [2024-11-28 02:56:30,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:30,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399882823] [2024-11-28 02:56:30,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:30,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:31,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399882823] [2024-11-28 02:56:31,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399882823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:31,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:31,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:56:31,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292433442] [2024-11-28 02:56:31,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:31,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:56:31,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:31,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:56:31,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:56:31,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-11-28 02:56:31,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 61 transitions, 146 flow. Second operand has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 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) [2024-11-28 02:56:31,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:56:31,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-11-28 02:56:31,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:56:32,804 INFO L124 PetriNetUnfolderBase]: 5666/8749 cut-off events. [2024-11-28 02:56:32,804 INFO L125 PetriNetUnfolderBase]: For 429/429 co-relation queries the response was YES. [2024-11-28 02:56:32,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16546 conditions, 8749 events. 5666/8749 cut-off events. For 429/429 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 55327 event pairs, 4408 based on Foata normal form. 1/7057 useless extension candidates. Maximal degree in co-relation 15197. Up to 7324 conditions per place. [2024-11-28 02:56:32,924 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 32 selfloop transitions, 0 changer transitions 0/55 dead transitions. [2024-11-28 02:56:32,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 55 transitions, 198 flow [2024-11-28 02:56:32,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:56:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:56:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 93 transitions. [2024-11-28 02:56:32,950 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7045454545454546 [2024-11-28 02:56:32,953 INFO L175 Difference]: Start difference. First operand has 66 places, 61 transitions, 146 flow. Second operand 2 states and 93 transitions. [2024-11-28 02:56:32,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 55 transitions, 198 flow [2024-11-28 02:56:33,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 55 transitions, 182 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-28 02:56:33,044 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 118 flow [2024-11-28 02:56:33,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2024-11-28 02:56:33,055 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -9 predicate places. [2024-11-28 02:56:33,056 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 118 flow [2024-11-28 02:56:33,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 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) [2024-11-28 02:56:33,057 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:56:33,058 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:33,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:56:33,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-28 02:56:33,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:33,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1763533932, now seen corresponding path program 1 times [2024-11-28 02:56:33,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:33,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886114072] [2024-11-28 02:56:33,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:33,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:33,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:33,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886114072] [2024-11-28 02:56:33,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886114072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:33,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:33,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:56:33,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504195941] [2024-11-28 02:56:33,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:33,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:56:33,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:33,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:56:33,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:56:33,921 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 66 [2024-11-28 02:56:33,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2024-11-28 02:56:33,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:56:33,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 66 [2024-11-28 02:56:33,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:56:38,408 INFO L124 PetriNetUnfolderBase]: 26781/36802 cut-off events. [2024-11-28 02:56:38,410 INFO L125 PetriNetUnfolderBase]: For 266/266 co-relation queries the response was YES. [2024-11-28 02:56:38,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72502 conditions, 36802 events. 26781/36802 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 1438. Compared 225496 event pairs, 10227 based on Foata normal form. 1/32185 useless extension candidates. Maximal degree in co-relation 72499. Up to 17129 conditions per place. [2024-11-28 02:56:38,654 INFO L140 encePairwiseOnDemand]: 55/66 looper letters, 80 selfloop transitions, 12 changer transitions 11/116 dead transitions. [2024-11-28 02:56:38,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 116 transitions, 454 flow [2024-11-28 02:56:38,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:56:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:56:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-11-28 02:56:38,656 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-28 02:56:38,656 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 118 flow. Second operand 4 states and 176 transitions. [2024-11-28 02:56:38,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 116 transitions, 454 flow [2024-11-28 02:56:38,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 116 transitions, 454 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:56:38,663 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 204 flow [2024-11-28 02:56:38,663 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2024-11-28 02:56:38,664 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2024-11-28 02:56:38,664 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 204 flow [2024-11-28 02:56:38,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2024-11-28 02:56:38,665 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:56:38,665 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:38,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:56:38,665 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-28 02:56:38,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:38,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1852793646, now seen corresponding path program 2 times [2024-11-28 02:56:38,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:38,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943211110] [2024-11-28 02:56:38,669 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:56:38,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:38,728 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:56:38,728 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:56:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:56:39,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:39,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943211110] [2024-11-28 02:56:39,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943211110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:56:39,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:56:39,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:56:39,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549782378] [2024-11-28 02:56:39,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:56:39,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:56:39,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:39,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:56:39,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:56:39,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 66 [2024-11-28 02:56:39,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2024-11-28 02:56:39,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:56:39,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 66 [2024-11-28 02:56:39,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:56:41,844 INFO L124 PetriNetUnfolderBase]: 31612/43916 cut-off events. [2024-11-28 02:56:41,844 INFO L125 PetriNetUnfolderBase]: For 12989/12989 co-relation queries the response was YES. [2024-11-28 02:56:41,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99390 conditions, 43916 events. 31612/43916 cut-off events. For 12989/12989 co-relation queries the response was YES. Maximal size of possible extension queue 1637. Compared 276155 event pairs, 12435 based on Foata normal form. 1/38428 useless extension candidates. Maximal degree in co-relation 99384. Up to 21640 conditions per place. [2024-11-28 02:56:41,946 INFO L140 encePairwiseOnDemand]: 54/66 looper letters, 0 selfloop transitions, 0 changer transitions 130/130 dead transitions. [2024-11-28 02:56:41,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 130 transitions, 644 flow [2024-11-28 02:56:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:56:41,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:56:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 173 transitions. [2024-11-28 02:56:41,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6553030303030303 [2024-11-28 02:56:41,954 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 204 flow. Second operand 4 states and 173 transitions. [2024-11-28 02:56:41,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 130 transitions, 644 flow [2024-11-28 02:56:42,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 130 transitions, 644 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:56:42,060 INFO L231 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2024-11-28 02:56:42,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2024-11-28 02:56:42,062 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -2 predicate places. [2024-11-28 02:56:42,063 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2024-11-28 02:56:42,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2024-11-28 02:56:42,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-28 02:56:42,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-28 02:56:42,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-28 02:56:42,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-28 02:56:42,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-28 02:56:42,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-28 02:56:42,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:56:42,073 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-28 02:56:42,082 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:56:42,082 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:56:42,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:42 BasicIcfg [2024-11-28 02:56:42,091 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:56:42,092 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:56:42,092 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:56:42,093 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:56:42,094 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30" (3/4) ... [2024-11-28 02:56:42,098 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:56:42,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-28 02:56:42,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-28 02:56:42,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-28 02:56:42,103 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2024-11-28 02:56:42,110 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-11-28 02:56:42,111 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-28 02:56:42,111 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 02:56:42,111 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:56:42,442 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:56:42,443 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:56:42,443 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:56:42,444 INFO L158 Benchmark]: Toolchain (without parser) took 13189.47ms. Allocated memory was 117.4MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 92.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 621.9MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,444 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:42,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.16ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.9MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.18ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.6MB in the end (delta: 970.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,446 INFO L158 Benchmark]: Boogie Preprocessor took 78.65ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:42,446 INFO L158 Benchmark]: RCFGBuilder took 670.24ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 59.0MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,446 INFO L158 Benchmark]: TraceAbstraction took 11629.78ms. Allocated memory was 117.4MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 58.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 536.5MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,447 INFO L158 Benchmark]: Witness Printer took 351.27ms. Allocated memory is still 2.0GB. Free memory was 1.4GB in the beginning and 1.6GB in the end (delta: -170.5MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2024-11-28 02:56:42,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.16ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.9MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.18ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.6MB in the end (delta: 970.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.65ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 670.24ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 59.0MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11629.78ms. Allocated memory was 117.4MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 58.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 536.5MB. Max. memory is 16.1GB. * Witness Printer took 351.27ms. Allocated memory is still 2.0GB. Free memory was 1.4GB in the beginning and 1.6GB in the end (delta: -170.5MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 81]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 99 locations, 6 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: 11.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 351 IncrementalHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 27 mSDtfsCounter, 351 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 02:56:42,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6765c9b3-8ed0-4bc4-8fc5-c04aa50cf3f2/bin/uautomizer-verify-aQ6SnzHsRB/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