./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/sync01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/sync01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX --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 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:49:07,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:49:07,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 18:49:07,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:49:07,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:49:07,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:49:07,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:49:07,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:49:07,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:49:07,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:49:07,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:49:07,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:49:07,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:49:07,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:49:07,903 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:49:07,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:49:07,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:49:07,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:49:07,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:49:07,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:49:07,911 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:49:07,911 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:49:07,912 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 18:49:07,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:49:07,912 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:49:07,912 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:49:07,913 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:49:07,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:49:07,913 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:49:07,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:49:07,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:49:07,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:49:07,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:49:07,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:07,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:49:07,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:49:07,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:49:07,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:49:07,919 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:49:07,919 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:49:07,919 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:49:07,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:49:07,920 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 [2024-11-08 18:49:08,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:49:08,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:49:08,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:49:08,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:49:08,201 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:49:08,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread/sync01.i Unable to find full path for "g++" [2024-11-08 18:49:10,227 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:49:10,615 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:49:10,617 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/sv-benchmarks/c/pthread/sync01.i [2024-11-08 18:49:10,637 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/data/e9dcf70c1/b8874da80e33486794a4914187a60969/FLAG16e9f5033 [2024-11-08 18:49:10,812 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/data/e9dcf70c1/b8874da80e33486794a4914187a60969 [2024-11-08 18:49:10,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:49:10,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:49:10,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:10,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:49:10,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:49:10,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:10" (1/1) ... [2024-11-08 18:49:10,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63247464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:10, skipping insertion in model container [2024-11-08 18:49:10,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:10" (1/1) ... [2024-11-08 18:49:10,890 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:49:11,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:11,492 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:49:11,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:11,621 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:49:11,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11 WrapperNode [2024-11-08 18:49:11,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:11,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:11,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:49:11,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:49:11,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,701 INFO L138 Inliner]: procedures = 268, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 254 [2024-11-08 18:49:11,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:11,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:49:11,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:49:11,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:49:11,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,731 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,758 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-08 18:49:11,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:49:11,803 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:49:11,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:49:11,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:49:11,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (1/1) ... [2024-11-08 18:49:11,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:11,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:49:11,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:49:11,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:49:11,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:49:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 18:49:11,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 18:49:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 18:49:11,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 18:49:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:49:11,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:49:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:49:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:49:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:49:11,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:49:11,881 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:49:12,046 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:49:12,049 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:49:12,541 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:49:12,541 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:49:14,461 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:49:14,461 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:49:14,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:14 BoogieIcfgContainer [2024-11-08 18:49:14,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:49:14,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:49:14,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:49:14,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:49:14,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:49:10" (1/3) ... [2024-11-08 18:49:14,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ce498c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:49:14, skipping insertion in model container [2024-11-08 18:49:14,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:11" (2/3) ... [2024-11-08 18:49:14,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ce498c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:49:14, skipping insertion in model container [2024-11-08 18:49:14,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:14" (3/3) ... [2024-11-08 18:49:14,476 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2024-11-08 18:49:14,498 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:49:14,498 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:49:14,499 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:49:14,586 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:49:14,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 43 transitions, 100 flow [2024-11-08 18:49:14,695 INFO L124 PetriNetUnfolderBase]: 6/41 cut-off events. [2024-11-08 18:49:14,695 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 18:49:14,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 6/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-11-08 18:49:14,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 43 transitions, 100 flow [2024-11-08 18:49:14,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 40 transitions, 92 flow [2024-11-08 18:49:14,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:49:14,726 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;@21ac1f7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:49:14,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-08 18:49:14,760 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:49:14,760 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-11-08 18:49:14,760 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 18:49:14,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:49:14,761 INFO L204 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] [2024-11-08 18:49:14,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 18:49:14,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:14,771 INFO L85 PathProgramCache]: Analyzing trace with hash 340496517, now seen corresponding path program 1 times [2024-11-08 18:49:14,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:14,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035150173] [2024-11-08 18:49:14,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:49:15,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:15,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035150173] [2024-11-08 18:49:15,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035150173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:15,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:15,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:49:15,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639079436] [2024-11-08 18:49:15,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:15,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:49:15,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:15,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:49:15,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:49:16,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-11-08 18:49:16,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-08 18:49:16,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:49:16,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-11-08 18:49:16,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:49:16,178 INFO L124 PetriNetUnfolderBase]: 108/213 cut-off events. [2024-11-08 18:49:16,178 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-08 18:49:16,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 213 events. 108/213 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 695 event pairs, 36 based on Foata normal form. 26/230 useless extension candidates. Maximal degree in co-relation 383. Up to 138 conditions per place. [2024-11-08 18:49:16,184 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 22 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-11-08 18:49:16,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 134 flow [2024-11-08 18:49:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:49:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:49:16,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-08 18:49:16,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5581395348837209 [2024-11-08 18:49:16,200 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 92 flow. Second operand 3 states and 72 transitions. [2024-11-08 18:49:16,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 134 flow [2024-11-08 18:49:16,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 18:49:16,207 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 81 flow [2024-11-08 18:49:16,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2024-11-08 18:49:16,213 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -5 predicate places. [2024-11-08 18:49:16,213 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 81 flow [2024-11-08 18:49:16,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-08 18:49:16,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:49:16,214 INFO L204 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] [2024-11-08 18:49:16,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:49:16,214 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 18:49:16,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:16,215 INFO L85 PathProgramCache]: Analyzing trace with hash -680954403, now seen corresponding path program 2 times [2024-11-08 18:49:16,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:16,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145659849] [2024-11-08 18:49:16,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:16,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:49:16,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:16,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145659849] [2024-11-08 18:49:16,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145659849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:16,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:16,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:49:16,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663014646] [2024-11-08 18:49:16,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:16,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:49:16,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:16,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:49:16,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:49:16,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-11-08 18:49:16,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-08 18:49:16,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:49:16,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-11-08 18:49:16,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:49:17,255 INFO L124 PetriNetUnfolderBase]: 77/180 cut-off events. [2024-11-08 18:49:17,255 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 18:49:17,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 180 events. 77/180 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 558 event pairs, 12 based on Foata normal form. 25/205 useless extension candidates. Maximal degree in co-relation 155. Up to 62 conditions per place. [2024-11-08 18:49:17,257 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 25 selfloop transitions, 11 changer transitions 0/42 dead transitions. [2024-11-08 18:49:17,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 174 flow [2024-11-08 18:49:17,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:49:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:49:17,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2024-11-08 18:49:17,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3953488372093023 [2024-11-08 18:49:17,261 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 81 flow. Second operand 6 states and 102 transitions. [2024-11-08 18:49:17,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 174 flow [2024-11-08 18:49:17,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:49:17,265 INFO L231 Difference]: Finished difference. Result has 38 places, 34 transitions, 118 flow [2024-11-08 18:49:17,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2024-11-08 18:49:17,266 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2024-11-08 18:49:17,266 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 118 flow [2024-11-08 18:49:17,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-08 18:49:17,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:49:17,267 INFO L204 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] [2024-11-08 18:49:17,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:49:17,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 18:49:17,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:17,268 INFO L85 PathProgramCache]: Analyzing trace with hash -615136897, now seen corresponding path program 3 times [2024-11-08 18:49:17,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:17,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137004794] [2024-11-08 18:49:17,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:17,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:17,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:49:17,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:17,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137004794] [2024-11-08 18:49:17,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137004794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:17,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:17,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:49:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664414688] [2024-11-08 18:49:17,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:17,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:49:17,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:17,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:49:17,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:49:17,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2024-11-08 18:49:17,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-08 18:49:17,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:49:17,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2024-11-08 18:49:17,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:49:18,125 INFO L124 PetriNetUnfolderBase]: 51/133 cut-off events. [2024-11-08 18:49:18,126 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-08 18:49:18,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 133 events. 51/133 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 345 event pairs, 8 based on Foata normal form. 4/137 useless extension candidates. Maximal degree in co-relation 73. Up to 37 conditions per place. [2024-11-08 18:49:18,127 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 19 selfloop transitions, 11 changer transitions 0/36 dead transitions. [2024-11-08 18:49:18,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 174 flow [2024-11-08 18:49:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:49:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:49:18,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2024-11-08 18:49:18,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3813953488372093 [2024-11-08 18:49:18,129 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 118 flow. Second operand 5 states and 82 transitions. [2024-11-08 18:49:18,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 174 flow [2024-11-08 18:49:18,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 36 transitions, 158 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:49:18,131 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 107 flow [2024-11-08 18:49:18,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=107, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-08 18:49:18,132 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2024-11-08 18:49:18,133 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 107 flow [2024-11-08 18:49:18,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-08 18:49:18,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:49:18,133 INFO L204 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] [2024-11-08 18:49:18,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:49:18,133 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 18:49:18,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:18,134 INFO L85 PathProgramCache]: Analyzing trace with hash 916582641, now seen corresponding path program 4 times [2024-11-08 18:49:18,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:18,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558575273] [2024-11-08 18:49:18,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:18,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:49:18,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:18,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558575273] [2024-11-08 18:49:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558575273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:18,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:18,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:49:18,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883121765] [2024-11-08 18:49:18,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:18,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:49:18,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:18,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:49:18,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:49:18,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-08 18:49:18,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-08 18:49:18,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:49:18,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-08 18:49:18,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:49:18,560 INFO L124 PetriNetUnfolderBase]: 41/119 cut-off events. [2024-11-08 18:49:18,560 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-11-08 18:49:18,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 119 events. 41/119 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 352 event pairs, 33 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 60. Up to 92 conditions per place. [2024-11-08 18:49:18,561 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-11-08 18:49:18,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 143 flow [2024-11-08 18:49:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:49:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:49:18,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-08 18:49:18,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5581395348837209 [2024-11-08 18:49:18,565 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 107 flow. Second operand 3 states and 72 transitions. [2024-11-08 18:49:18,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 143 flow [2024-11-08 18:49:18,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 121 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 18:49:18,569 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-11-08 18:49:18,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-11-08 18:49:18,570 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2024-11-08 18:49:18,570 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-11-08 18:49:18,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-08 18:49:18,573 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-08 18:49:18,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-08 18:49:18,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-08 18:49:18,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-08 18:49:18,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:49:18,575 INFO L407 BasicCegarLoop]: Path program histogram: [4] [2024-11-08 18:49:18,578 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:49:18,578 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:49:18,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:49:18 BasicIcfg [2024-11-08 18:49:18,586 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:49:18,588 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:49:18,589 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:49:18,589 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:49:18,589 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:14" (3/4) ... [2024-11-08 18:49:18,593 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:49:18,597 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-08 18:49:18,597 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-08 18:49:18,612 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 252 nodes and edges [2024-11-08 18:49:18,612 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-08 18:49:18,612 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 18:49:18,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 18:49:18,757 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:49:18,758 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:49:18,758 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:49:18,759 INFO L158 Benchmark]: Toolchain (without parser) took 7941.91ms. Allocated memory was 163.6MB in the beginning and 503.3MB in the end (delta: 339.7MB). Free memory was 131.3MB in the beginning and 224.3MB in the end (delta: -92.9MB). Peak memory consumption was 249.7MB. Max. memory is 16.1GB. [2024-11-08 18:49:18,759 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:49:18,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 802.85ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 98.2MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-08 18:49:18,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.52ms. Allocated memory is still 163.6MB. Free memory was 98.2MB in the beginning and 95.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:49:18,760 INFO L158 Benchmark]: Boogie Preprocessor took 101.03ms. Allocated memory is still 163.6MB. Free memory was 95.4MB in the beginning and 91.4MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:49:18,761 INFO L158 Benchmark]: RCFGBuilder took 2658.98ms. Allocated memory was 163.6MB in the beginning and 310.4MB in the end (delta: 146.8MB). Free memory was 91.4MB in the beginning and 166.5MB in the end (delta: -75.1MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. [2024-11-08 18:49:18,761 INFO L158 Benchmark]: TraceAbstraction took 4120.53ms. Allocated memory was 310.4MB in the beginning and 503.3MB in the end (delta: 192.9MB). Free memory was 166.5MB in the beginning and 231.6MB in the end (delta: -65.1MB). Peak memory consumption was 127.8MB. Max. memory is 16.1GB. [2024-11-08 18:49:18,762 INFO L158 Benchmark]: Witness Printer took 169.78ms. Allocated memory is still 503.3MB. Free memory was 231.6MB in the beginning and 224.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 18:49:18,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 117.4MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 802.85ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 98.2MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.52ms. Allocated memory is still 163.6MB. Free memory was 98.2MB in the beginning and 95.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.03ms. Allocated memory is still 163.6MB. Free memory was 95.4MB in the beginning and 91.4MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2658.98ms. Allocated memory was 163.6MB in the beginning and 310.4MB in the end (delta: 146.8MB). Free memory was 91.4MB in the beginning and 166.5MB in the end (delta: -75.1MB). Peak memory consumption was 88.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4120.53ms. Allocated memory was 310.4MB in the beginning and 503.3MB in the end (delta: 192.9MB). Free memory was 166.5MB in the beginning and 231.6MB in the end (delta: -65.1MB). Peak memory consumption was 127.8MB. Max. memory is 16.1GB. * Witness Printer took 169.78ms. Allocated memory is still 503.3MB. Free memory was 231.6MB in the beginning and 224.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 953]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 20]: 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 5 procedures, 62 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 4 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 0.9s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 18:49:18,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02acec38-3379-43c0-9820-688211b1aa63/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE