./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.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_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/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_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/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_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:08:43,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:08:44,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 16:08:44,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:08:44,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:08:44,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:08:44,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:08:44,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:08:44,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:08:44,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:08:44,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:08:44,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:08:44,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:08:44,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:08:44,064 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:08:44,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:08:44,065 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:08:44,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:08:44,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:08:44,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:08:44,070 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 16:08:44,070 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 16:08:44,071 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 16:08:44,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:08:44,076 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:08:44,076 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:08:44,076 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:08:44,077 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:08:44,077 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:08:44,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:08:44,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:08:44,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:08:44,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:08:44,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:08:44,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:08:44,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:08:44,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:08:44,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:08:44,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:08:44,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:08:44,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:08:44,084 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:08:44,085 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_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2024-11-08 16:08:44,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:08:44,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:08:44,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:08:44,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:08:44,415 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:08:44,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i Unable to find full path for "g++" [2024-11-08 16:08:46,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:08:46,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:08:46,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2024-11-08 16:08:46,743 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/data/be30845b4/39f751f7b5d2460b83144cb8b016ee72/FLAGd504615d8 [2024-11-08 16:08:46,759 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/data/be30845b4/39f751f7b5d2460b83144cb8b016ee72 [2024-11-08 16:08:46,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:08:46,763 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:08:46,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:08:46,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:08:46,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:08:46,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:08:46" (1/1) ... [2024-11-08 16:08:46,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fbd089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:46, skipping insertion in model container [2024-11-08 16:08:46,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:08:46" (1/1) ... [2024-11-08 16:08:46,819 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:08:47,278 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:08:47,294 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:08:47,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:08:47,332 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:08:47,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:08:47,424 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:08:47,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47 WrapperNode [2024-11-08 16:08:47,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:08:47,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:08:47,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:08:47,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:08:47,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,471 INFO L138 Inliner]: procedures = 171, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-08 16:08:47,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:08:47,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:08:47,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:08:47,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:08:47,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,488 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,507 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 5, 5, 5, 6]. 26 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 5, 5, 5, 1]. The 2 writes are split as follows [0, 0, 0, 0, 2]. [2024-11-08 16:08:47,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:08:47,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:08:47,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:08:47,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:08:47,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (1/1) ... [2024-11-08 16:08:47,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:08:47,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:08:47,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:08:47,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:08:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:08:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:08:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:08:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 16:08:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 16:08:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:08:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:08:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:08:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 16:08:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 16:08:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:08:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:08:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:08:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 16:08:47,616 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 16:08:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:08:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:08:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:08:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:08:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:08:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:08:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:08:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:08:47,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:08:47,620 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 16:08:47,771 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:08:47,774 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:08:48,066 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:08:48,069 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:08:48,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:08:48,356 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 16:08:48,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:08:48 BoogieIcfgContainer [2024-11-08 16:08:48,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:08:48,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:08:48,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:08:48,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:08:48,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:08:46" (1/3) ... [2024-11-08 16:08:48,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6cc3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:08:48, skipping insertion in model container [2024-11-08 16:08:48,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:47" (2/3) ... [2024-11-08 16:08:48,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6cc3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:08:48, skipping insertion in model container [2024-11-08 16:08:48,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:08:48" (3/3) ... [2024-11-08 16:08:48,394 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2024-11-08 16:08:48,422 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:08:48,422 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 16:08:48,422 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:08:48,487 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 16:08:48,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 65 transitions, 137 flow [2024-11-08 16:08:48,564 INFO L124 PetriNetUnfolderBase]: 10/64 cut-off events. [2024-11-08 16:08:48,565 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:08:48,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 10/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 195 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2024-11-08 16:08:48,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 65 transitions, 137 flow [2024-11-08 16:08:48,573 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 63 transitions, 132 flow [2024-11-08 16:08:48,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:08:48,590 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;@2a6a55a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:08:48,590 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 16:08:48,600 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:08:48,600 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-08 16:08:48,600 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:08:48,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:08:48,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:08:48,603 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:08:48,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:08:48,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1619753186, now seen corresponding path program 1 times [2024-11-08 16:08:48,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:08:48,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392324352] [2024-11-08 16:08:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:48,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:08:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:49,045 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 16:08:49,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:08:49,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392324352] [2024-11-08 16:08:49,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392324352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:08:49,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:08:49,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:08:49,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993240403] [2024-11-08 16:08:49,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:08:49,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:08:49,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:08:49,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:08:49,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:08:49,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-08 16:08:49,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 63 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 16:08:49,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:08:49,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-08 16:08:49,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:08:49,326 INFO L124 PetriNetUnfolderBase]: 96/385 cut-off events. [2024-11-08 16:08:49,327 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:08:49,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 385 events. 96/385 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1972 event pairs, 96 based on Foata normal form. 74/423 useless extension candidates. Maximal degree in co-relation 592. Up to 215 conditions per place. [2024-11-08 16:08:49,335 INFO L140 encePairwiseOnDemand]: 52/65 looper letters, 22 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-11-08 16:08:49,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 51 transitions, 156 flow [2024-11-08 16:08:49,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:08:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:08:49,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-08 16:08:49,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6102564102564103 [2024-11-08 16:08:49,350 INFO L175 Difference]: Start difference. First operand has 57 places, 63 transitions, 132 flow. Second operand 3 states and 119 transitions. [2024-11-08 16:08:49,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 51 transitions, 156 flow [2024-11-08 16:08:49,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 51 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:08:49,357 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 108 flow [2024-11-08 16:08:49,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2024-11-08 16:08:49,366 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -2 predicate places. [2024-11-08 16:08:49,366 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 108 flow [2024-11-08 16:08:49,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 16:08:49,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:08:49,368 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:08:49,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:08:49,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:08:49,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:08:49,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1619753185, now seen corresponding path program 1 times [2024-11-08 16:08:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:08:49,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782668069] [2024-11-08 16:08:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:08:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:49,634 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 16:08:49,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:08:49,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782668069] [2024-11-08 16:08:49,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782668069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:08:49,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:08:49,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:08:49,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017720365] [2024-11-08 16:08:49,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:08:49,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:08:49,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:08:49,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:08:49,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:08:49,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-08 16:08:49,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 16:08:49,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:08:49,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-08 16:08:49,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:08:49,807 INFO L124 PetriNetUnfolderBase]: 96/383 cut-off events. [2024-11-08 16:08:49,808 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:08:49,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 383 events. 96/383 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1967 event pairs, 96 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 595. Up to 215 conditions per place. [2024-11-08 16:08:49,814 INFO L140 encePairwiseOnDemand]: 62/65 looper letters, 22 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-11-08 16:08:49,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 50 transitions, 154 flow [2024-11-08 16:08:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:08:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:08:49,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-08 16:08:49,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.558974358974359 [2024-11-08 16:08:49,816 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 108 flow. Second operand 3 states and 109 transitions. [2024-11-08 16:08:49,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 50 transitions, 154 flow [2024-11-08 16:08:49,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:08:49,821 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 106 flow [2024-11-08 16:08:49,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-11-08 16:08:49,822 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-08 16:08:49,822 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 106 flow [2024-11-08 16:08:49,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 16:08:49,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:08:49,823 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:08:49,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:08:49,823 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:08:49,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:08:49,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1088981532, now seen corresponding path program 1 times [2024-11-08 16:08:49,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:08:49,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127399045] [2024-11-08 16:08:49,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:49,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:08:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:50,006 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 16:08:50,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:08:50,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127399045] [2024-11-08 16:08:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127399045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:08:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:08:50,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:08:50,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952677789] [2024-11-08 16:08:50,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:08:50,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:08:50,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:08:50,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:08:50,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:08:50,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 65 [2024-11-08 16:08:50,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 16:08:50,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:08:50,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 65 [2024-11-08 16:08:50,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:08:50,237 INFO L124 PetriNetUnfolderBase]: 96/342 cut-off events. [2024-11-08 16:08:50,237 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:08:50,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 342 events. 96/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1630 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 554. Up to 205 conditions per place. [2024-11-08 16:08:50,240 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 28 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2024-11-08 16:08:50,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 178 flow [2024-11-08 16:08:50,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:08:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:08:50,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-08 16:08:50,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48 [2024-11-08 16:08:50,246 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 106 flow. Second operand 5 states and 156 transitions. [2024-11-08 16:08:50,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 178 flow [2024-11-08 16:08:50,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 54 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:08:50,251 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 102 flow [2024-11-08 16:08:50,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2024-11-08 16:08:50,252 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -5 predicate places. [2024-11-08 16:08:50,252 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 102 flow [2024-11-08 16:08:50,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 16:08:50,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:08:50,252 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:08:50,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:08:50,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:08:50,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:08:50,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1088981531, now seen corresponding path program 1 times [2024-11-08 16:08:50,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:08:50,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755299683] [2024-11-08 16:08:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:50,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:08:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:50,484 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 16:08:50,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:08:50,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755299683] [2024-11-08 16:08:50,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755299683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:08:50,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:08:50,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:08:50,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435934767] [2024-11-08 16:08:50,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:08:50,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:08:50,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:08:50,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:08:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:08:50,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 65 [2024-11-08 16:08:50,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 16:08:50,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:08:50,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 65 [2024-11-08 16:08:50,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:08:50,794 INFO L124 PetriNetUnfolderBase]: 96/306 cut-off events. [2024-11-08 16:08:50,794 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 16:08:50,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 306 events. 96/306 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1325 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 80. Up to 205 conditions per place. [2024-11-08 16:08:50,801 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 28 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-08 16:08:50,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 50 transitions, 174 flow [2024-11-08 16:08:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:08:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:08:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 180 transitions. [2024-11-08 16:08:50,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2024-11-08 16:08:50,803 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 102 flow. Second operand 6 states and 180 transitions. [2024-11-08 16:08:50,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 50 transitions, 174 flow [2024-11-08 16:08:50,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 50 transitions, 166 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 16:08:50,809 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 94 flow [2024-11-08 16:08:50,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=94, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-11-08 16:08:50,811 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -8 predicate places. [2024-11-08 16:08:50,811 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 94 flow [2024-11-08 16:08:50,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 16:08:50,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:08:50,812 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:08:50,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:08:50,817 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:08:50,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:08:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash -109220618, now seen corresponding path program 1 times [2024-11-08 16:08:50,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:08:50,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834752923] [2024-11-08 16:08:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:50,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:08:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:50,950 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 16:08:50,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:08:50,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834752923] [2024-11-08 16:08:50,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834752923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:08:50,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:08:50,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:08:50,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438844527] [2024-11-08 16:08:50,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:08:50,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:08:50,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:08:50,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:08:50,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:08:50,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-08 16:08:50,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 16:08:50,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:08:50,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-08 16:08:50,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:08:51,132 INFO L124 PetriNetUnfolderBase]: 110/346 cut-off events. [2024-11-08 16:08:51,133 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 16:08:51,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 346 events. 110/346 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1528 event pairs, 38 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 546. Up to 137 conditions per place. [2024-11-08 16:08:51,135 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 39 selfloop transitions, 7 changer transitions 0/63 dead transitions. [2024-11-08 16:08:51,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 230 flow [2024-11-08 16:08:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:08:51,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:08:51,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 188 transitions. [2024-11-08 16:08:51,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5784615384615385 [2024-11-08 16:08:51,138 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 94 flow. Second operand 5 states and 188 transitions. [2024-11-08 16:08:51,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 230 flow [2024-11-08 16:08:51,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 63 transitions, 221 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 16:08:51,146 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 131 flow [2024-11-08 16:08:51,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-11-08 16:08:51,147 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2024-11-08 16:08:51,147 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 131 flow [2024-11-08 16:08:51,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 16:08:51,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:08:51,148 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:08:51,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:08:51,148 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:08:51,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:08:51,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1635255689, now seen corresponding path program 1 times [2024-11-08 16:08:51,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:08:51,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13223674] [2024-11-08 16:08:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:51,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:08:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:08:51,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:08:51,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13223674] [2024-11-08 16:08:51,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13223674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:08:51,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:08:51,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:08:51,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861687953] [2024-11-08 16:08:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:08:51,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:08:51,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:08:51,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:08:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:08:51,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-08 16:08:51,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 16:08:51,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:08:51,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-08 16:08:51,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:08:51,440 INFO L124 PetriNetUnfolderBase]: 60/237 cut-off events. [2024-11-08 16:08:51,441 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-11-08 16:08:51,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 237 events. 60/237 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 908 event pairs, 20 based on Foata normal form. 13/248 useless extension candidates. Maximal degree in co-relation 373. Up to 83 conditions per place. [2024-11-08 16:08:51,442 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 29 selfloop transitions, 8 changer transitions 0/56 dead transitions. [2024-11-08 16:08:51,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 56 transitions, 231 flow [2024-11-08 16:08:51,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:08:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:08:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2024-11-08 16:08:51,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5923076923076923 [2024-11-08 16:08:51,446 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 131 flow. Second operand 4 states and 154 transitions. [2024-11-08 16:08:51,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 56 transitions, 231 flow [2024-11-08 16:08:51,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 224 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-08 16:08:51,451 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 152 flow [2024-11-08 16:08:51,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2024-11-08 16:08:51,453 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-11-08 16:08:51,455 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 152 flow [2024-11-08 16:08:51,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 16:08:51,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:08:51,455 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] [2024-11-08 16:08:51,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:08:51,456 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:08:51,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:08:51,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1269201145, now seen corresponding path program 1 times [2024-11-08 16:08:51,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:08:51,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543907258] [2024-11-08 16:08:51,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:51,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:08:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:08:51,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:08:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:08:51,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:08:51,518 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:08:51,519 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (20 of 21 remaining) [2024-11-08 16:08:51,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 21 remaining) [2024-11-08 16:08:51,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 21 remaining) [2024-11-08 16:08:51,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (17 of 21 remaining) [2024-11-08 16:08:51,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 21 remaining) [2024-11-08 16:08:51,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 21 remaining) [2024-11-08 16:08:51,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 21 remaining) [2024-11-08 16:08:51,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 21 remaining) [2024-11-08 16:08:51,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 21 remaining) [2024-11-08 16:08:51,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 21 remaining) [2024-11-08 16:08:51,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 21 remaining) [2024-11-08 16:08:51,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 21 remaining) [2024-11-08 16:08:51,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 21 remaining) [2024-11-08 16:08:51,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 21 remaining) [2024-11-08 16:08:51,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 21 remaining) [2024-11-08 16:08:51,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 21 remaining) [2024-11-08 16:08:51,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 21 remaining) [2024-11-08 16:08:51,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 21 remaining) [2024-11-08 16:08:51,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 21 remaining) [2024-11-08 16:08:51,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 21 remaining) [2024-11-08 16:08:51,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 21 remaining) [2024-11-08 16:08:51,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:08:51,527 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:08:51,561 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:08:51,561 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:08:51,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:08:51 BasicIcfg [2024-11-08 16:08:51,567 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:08:51,568 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:08:51,568 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:08:51,569 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:08:51,569 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:08:48" (3/4) ... [2024-11-08 16:08:51,571 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:08:51,572 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:08:51,573 INFO L158 Benchmark]: Toolchain (without parser) took 4810.08ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 121.5MB in the beginning and 135.6MB in the end (delta: -14.1MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2024-11-08 16:08:51,574 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory was 86.9MB in the beginning and 86.8MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:08:51,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.19ms. Allocated memory is still 155.2MB. Free memory was 121.5MB in the beginning and 97.6MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 16:08:51,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.20ms. Allocated memory is still 155.2MB. Free memory was 97.6MB in the beginning and 96.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:08:51,575 INFO L158 Benchmark]: Boogie Preprocessor took 52.99ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 93.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:08:51,576 INFO L158 Benchmark]: RCFGBuilder took 835.08ms. Allocated memory is still 155.2MB. Free memory was 93.4MB in the beginning and 119.7MB in the end (delta: -26.3MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2024-11-08 16:08:51,576 INFO L158 Benchmark]: TraceAbstraction took 3204.22ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 119.5MB in the beginning and 136.6MB in the end (delta: -17.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-08 16:08:51,577 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 195.0MB. Free memory was 136.6MB in the beginning and 135.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:08:51,582 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory was 86.9MB in the beginning and 86.8MB in the end (delta: 25.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 661.19ms. Allocated memory is still 155.2MB. Free memory was 121.5MB in the beginning and 97.6MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.20ms. Allocated memory is still 155.2MB. Free memory was 97.6MB in the beginning and 96.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.99ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 93.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 835.08ms. Allocated memory is still 155.2MB. Free memory was 93.4MB in the beginning and 119.7MB in the end (delta: -26.3MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3204.22ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 119.5MB in the beginning and 136.6MB in the end (delta: -17.1MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 195.0MB. Free memory was 136.6MB in the beginning and 135.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 690]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 690. Possible FailurePath: [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L707] 0 pthread_t id; [L708] 0 int i = 0; [L708] 0 int i = 0; [L709] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [\old(arg)={6:0}, __global_lock={3:0}, i={6:0}, id=-1, mutex1={4:0}, mutex2={5:0}] [L700] 1 int *p = (int *) arg; VAL [\old(arg)={6:0}, __global_lock={3:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] EXPR 1 \read(*p) [L702] 1 (*p)++ VAL [\old(arg)={6:0}, __global_lock={3:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] 1 (*p)++ [L711] EXPR 0 \read(i) [L711] CALL 0 __VERIFIER_assert((i) == 0) [L691] COND TRUE 0 !(cond) [L691] CALL 0 reach_error() [L690] COND FALSE 0 !(0) VAL [\old(arg)={6:0}, __global_lock={3:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L690] 0 __assert_fail ("0", "racemacros.h", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={6:0}, __global_lock={3:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 21 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: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 431 IncrementalHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 37 mSDtfsCounter, 431 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=6, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 349 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 16:08:51,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/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_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:08:54,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:08:54,256 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-08 16:08:54,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:08:54,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:08:54,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:08:54,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:08:54,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:08:54,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:08:54,305 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:08:54,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:08:54,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:08:54,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:08:54,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:08:54,310 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:08:54,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:08:54,311 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:08:54,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:08:54,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:08:54,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:08:54,316 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 16:08:54,317 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 16:08:54,317 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 16:08:54,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:08:54,318 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:08:54,318 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 16:08:54,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:08:54,318 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 16:08:54,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:08:54,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:08:54,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:08:54,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:08:54,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:08:54,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:08:54,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:08:54,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:08:54,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:08:54,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:08:54,325 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 16:08:54,325 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 16:08:54,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:08:54,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:08:54,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:08:54,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:08:54,327 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_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf [2024-11-08 16:08:54,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:08:54,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:08:54,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:08:54,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:08:54,767 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:08:54,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i Unable to find full path for "g++" [2024-11-08 16:08:56,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:08:57,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:08:57,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2024-11-08 16:08:57,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/data/26420959b/b288e6ca147f4138b23515d3b238a13b/FLAG677861d15 [2024-11-08 16:08:57,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/data/26420959b/b288e6ca147f4138b23515d3b238a13b [2024-11-08 16:08:57,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:08:57,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:08:57,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:08:57,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:08:57,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:08:57,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:57,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cbb7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57, skipping insertion in model container [2024-11-08 16:08:57,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:57,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:08:57,769 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:08:57,784 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:08:57,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:08:57,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:08:57,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:08:57,937 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:08:57,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57 WrapperNode [2024-11-08 16:08:57,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:08:57,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:08:57,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:08:57,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:08:57,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:57,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,005 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-08 16:08:58,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:08:58,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:08:58,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:08:58,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:08:58,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,024 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,059 INFO L175 MemorySlicer]: Split 23 memory accesses to 5 slices as follows [2, 5, 5, 6, 5]. 26 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 5, 5, 1, 5]. The 2 writes are split as follows [0, 0, 0, 2, 0]. [2024-11-08 16:08:58,063 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,085 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:08:58,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:08:58,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:08:58,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:08:58,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (1/1) ... [2024-11-08 16:08:58,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:08:58,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:08:58,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:08:58,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:08:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 16:08:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 16:08:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 16:08:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 16:08:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 16:08:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:08:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:08:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:08:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 16:08:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 16:08:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:08:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 16:08:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 16:08:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 16:08:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 16:08:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 16:08:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 16:08:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 16:08:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 16:08:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 16:08:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 16:08:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 16:08:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 16:08:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 16:08:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 16:08:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 16:08:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:08:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:08:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:08:58,186 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 16:08:58,393 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:08:58,395 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:08:58,796 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:08:58,796 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:08:59,168 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:08:59,169 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 16:08:59,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:08:59 BoogieIcfgContainer [2024-11-08 16:08:59,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:08:59,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:08:59,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:08:59,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:08:59,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:08:57" (1/3) ... [2024-11-08 16:08:59,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ddb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:08:59, skipping insertion in model container [2024-11-08 16:08:59,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:08:57" (2/3) ... [2024-11-08 16:08:59,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ddb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:08:59, skipping insertion in model container [2024-11-08 16:08:59,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:08:59" (3/3) ... [2024-11-08 16:08:59,181 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2024-11-08 16:08:59,199 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:08:59,200 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 16:08:59,200 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:08:59,277 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 16:08:59,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 65 transitions, 137 flow [2024-11-08 16:08:59,389 INFO L124 PetriNetUnfolderBase]: 10/64 cut-off events. [2024-11-08 16:08:59,390 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:08:59,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 10/64 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 195 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2024-11-08 16:08:59,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 65 transitions, 137 flow [2024-11-08 16:08:59,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 63 transitions, 132 flow [2024-11-08 16:08:59,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:08:59,431 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;@11178e01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:08:59,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 16:08:59,448 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:08:59,449 INFO L124 PetriNetUnfolderBase]: 2/24 cut-off events. [2024-11-08 16:08:59,450 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:08:59,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:08:59,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:08:59,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:08:59,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:08:59,459 INFO L85 PathProgramCache]: Analyzing trace with hash -594925538, now seen corresponding path program 1 times [2024-11-08 16:08:59,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:08:59,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957726628] [2024-11-08 16:08:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:08:59,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:08:59,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:08:59,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:08:59,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:08:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:08:59,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:08:59,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:08:59,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-08 16:08:59,769 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 16:08:59,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:08:59,770 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:08:59,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957726628] [2024-11-08 16:08:59,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957726628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:08:59,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:08:59,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:08:59,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193613802] [2024-11-08 16:08:59,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:08:59,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:08:59,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:08:59,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:08:59,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:08:59,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-08 16:08:59,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 63 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 16:08:59,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:08:59,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-08 16:08:59,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:00,107 INFO L124 PetriNetUnfolderBase]: 96/385 cut-off events. [2024-11-08 16:09:00,107 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:09:00,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 385 events. 96/385 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1972 event pairs, 96 based on Foata normal form. 74/423 useless extension candidates. Maximal degree in co-relation 592. Up to 215 conditions per place. [2024-11-08 16:09:00,114 INFO L140 encePairwiseOnDemand]: 52/65 looper letters, 22 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-11-08 16:09:00,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 51 transitions, 156 flow [2024-11-08 16:09:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:00,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:00,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-08 16:09:00,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6102564102564103 [2024-11-08 16:09:00,131 INFO L175 Difference]: Start difference. First operand has 57 places, 63 transitions, 132 flow. Second operand 3 states and 119 transitions. [2024-11-08 16:09:00,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 51 transitions, 156 flow [2024-11-08 16:09:00,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 51 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:00,139 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 108 flow [2024-11-08 16:09:00,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2024-11-08 16:09:00,145 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -2 predicate places. [2024-11-08 16:09:00,146 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 108 flow [2024-11-08 16:09:00,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 16:09:00,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:00,146 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:00,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:09:00,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:00,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:09:00,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash -594925537, now seen corresponding path program 1 times [2024-11-08 16:09:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:09:00,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907893157] [2024-11-08 16:09:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:00,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:00,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:00,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:00,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:09:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:00,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:09:00,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:09:00,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 16:09:00,543 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 16:09:00,544 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:09:00,544 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:09:00,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907893157] [2024-11-08 16:09:00,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907893157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:00,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:00,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:09:00,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800072428] [2024-11-08 16:09:00,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:00,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:09:00,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:09:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:09:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:09:00,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-08 16:09:00,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 16:09:00,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:00,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-08 16:09:00,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:00,723 INFO L124 PetriNetUnfolderBase]: 96/383 cut-off events. [2024-11-08 16:09:00,723 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:09:00,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 383 events. 96/383 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1967 event pairs, 96 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 595. Up to 215 conditions per place. [2024-11-08 16:09:00,729 INFO L140 encePairwiseOnDemand]: 62/65 looper letters, 22 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-11-08 16:09:00,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 50 transitions, 154 flow [2024-11-08 16:09:00,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:09:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:09:00,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-08 16:09:00,735 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.558974358974359 [2024-11-08 16:09:00,735 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 108 flow. Second operand 3 states and 109 transitions. [2024-11-08 16:09:00,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 50 transitions, 154 flow [2024-11-08 16:09:00,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:00,738 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 106 flow [2024-11-08 16:09:00,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-11-08 16:09:00,740 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-08 16:09:00,740 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 106 flow [2024-11-08 16:09:00,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 16:09:00,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:00,741 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:00,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 16:09:00,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:00,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:09:00,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash 615904486, now seen corresponding path program 1 times [2024-11-08 16:09:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:09:00,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464613380] [2024-11-08 16:09:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:00,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:00,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:00,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:00,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:09:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:01,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:09:01,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:09:01,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-08 16:09:01,121 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 16:09:01,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:09:01,122 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:09:01,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464613380] [2024-11-08 16:09:01,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464613380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:01,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:01,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:09:01,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002331814] [2024-11-08 16:09:01,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:01,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:09:01,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:09:01,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:09:01,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:09:01,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 65 [2024-11-08 16:09:01,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 106 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 16:09:01,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:01,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 65 [2024-11-08 16:09:01,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:01,438 INFO L124 PetriNetUnfolderBase]: 96/342 cut-off events. [2024-11-08 16:09:01,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:09:01,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 342 events. 96/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1630 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 554. Up to 205 conditions per place. [2024-11-08 16:09:01,441 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 28 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2024-11-08 16:09:01,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 178 flow [2024-11-08 16:09:01,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:09:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:09:01,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-08 16:09:01,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48 [2024-11-08 16:09:01,447 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 106 flow. Second operand 5 states and 156 transitions. [2024-11-08 16:09:01,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 178 flow [2024-11-08 16:09:01,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 54 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:09:01,449 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 102 flow [2024-11-08 16:09:01,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2024-11-08 16:09:01,450 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -5 predicate places. [2024-11-08 16:09:01,450 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 102 flow [2024-11-08 16:09:01,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 16:09:01,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:01,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:01,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:09:01,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:01,652 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:09:01,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:01,653 INFO L85 PathProgramCache]: Analyzing trace with hash 615904487, now seen corresponding path program 1 times [2024-11-08 16:09:01,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:09:01,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127510625] [2024-11-08 16:09:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:01,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:01,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:01,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:01,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:09:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:01,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 16:09:01,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:09:01,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 16:09:01,899 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 16:09:01,900 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:09:01,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:09:01,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127510625] [2024-11-08 16:09:01,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127510625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:01,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:01,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:09:01,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804951459] [2024-11-08 16:09:01,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:01,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:09:01,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:09:01,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:09:01,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:09:01,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 65 [2024-11-08 16:09:01,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 16:09:01,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:01,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 65 [2024-11-08 16:09:01,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:02,194 INFO L124 PetriNetUnfolderBase]: 96/322 cut-off events. [2024-11-08 16:09:02,194 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-08 16:09:02,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 322 events. 96/322 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1419 event pairs, 66 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 380. Up to 205 conditions per place. [2024-11-08 16:09:02,197 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 28 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-08 16:09:02,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 50 transitions, 174 flow [2024-11-08 16:09:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:09:02,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:09:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 180 transitions. [2024-11-08 16:09:02,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2024-11-08 16:09:02,199 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 102 flow. Second operand 6 states and 180 transitions. [2024-11-08 16:09:02,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 50 transitions, 174 flow [2024-11-08 16:09:02,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 50 transitions, 166 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 16:09:02,201 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 94 flow [2024-11-08 16:09:02,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=94, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2024-11-08 16:09:02,202 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -8 predicate places. [2024-11-08 16:09:02,203 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 94 flow [2024-11-08 16:09:02,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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 16:09:02,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:02,203 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:02,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:09:02,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:02,408 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:09:02,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:02,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1903702968, now seen corresponding path program 1 times [2024-11-08 16:09:02,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:09:02,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920120153] [2024-11-08 16:09:02,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:02,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:02,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:02,411 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:02,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:09:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:02,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:09:02,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:09:02,554 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 16:09:02,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:09:02,555 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:09:02,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920120153] [2024-11-08 16:09:02,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920120153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:02,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:02,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:09:02,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629975905] [2024-11-08 16:09:02,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:02,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:09:02,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:09:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:09:02,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:09:02,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-08 16:09:02,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:02,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:02,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-08 16:09:02,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:02,810 INFO L124 PetriNetUnfolderBase]: 98/327 cut-off events. [2024-11-08 16:09:02,810 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 16:09:02,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 327 events. 98/327 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1457 event pairs, 38 based on Foata normal form. 13/335 useless extension candidates. Maximal degree in co-relation 450. Up to 145 conditions per place. [2024-11-08 16:09:02,812 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 38 selfloop transitions, 6 changer transitions 0/62 dead transitions. [2024-11-08 16:09:02,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 224 flow [2024-11-08 16:09:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:09:02,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:09:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 191 transitions. [2024-11-08 16:09:02,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5876923076923077 [2024-11-08 16:09:02,814 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 94 flow. Second operand 5 states and 191 transitions. [2024-11-08 16:09:02,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 62 transitions, 224 flow [2024-11-08 16:09:02,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 62 transitions, 215 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 16:09:02,818 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 124 flow [2024-11-08 16:09:02,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=124, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2024-11-08 16:09:02,821 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -5 predicate places. [2024-11-08 16:09:02,821 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 124 flow [2024-11-08 16:09:02,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:09:02,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:02,822 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:02,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:09:03,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:03,022 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:09:03,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:03,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1630815181, now seen corresponding path program 1 times [2024-11-08 16:09:03,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:09:03,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734763719] [2024-11-08 16:09:03,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:03,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:03,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:03,026 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:03,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:09:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:03,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:09:03,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:09:03,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-11-08 16:09:03,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-08 16:09:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:03,276 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:09:03,276 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 16:09:03,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734763719] [2024-11-08 16:09:03,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734763719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:09:03,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:09:03,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:09:03,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141901423] [2024-11-08 16:09:03,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:09:03,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:09:03,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 16:09:03,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:09:03,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:09:03,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-08 16:09:03,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 16:09:03,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:09:03,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-08 16:09:03,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:09:03,454 INFO L124 PetriNetUnfolderBase]: 56/237 cut-off events. [2024-11-08 16:09:03,454 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-08 16:09:03,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 237 events. 56/237 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 917 event pairs, 20 based on Foata normal form. 13/248 useless extension candidates. Maximal degree in co-relation 407. Up to 81 conditions per place. [2024-11-08 16:09:03,455 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 31 selfloop transitions, 8 changer transitions 0/57 dead transitions. [2024-11-08 16:09:03,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 220 flow [2024-11-08 16:09:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:09:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:09:03,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 156 transitions. [2024-11-08 16:09:03,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-08 16:09:03,458 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 124 flow. Second operand 4 states and 156 transitions. [2024-11-08 16:09:03,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 220 flow [2024-11-08 16:09:03,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 57 transitions, 218 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-08 16:09:03,460 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 146 flow [2024-11-08 16:09:03,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2024-11-08 16:09:03,461 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-08 16:09:03,461 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 146 flow [2024-11-08 16:09:03,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 16:09:03,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:09:03,462 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] [2024-11-08 16:09:03,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:09:03,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:03,663 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-08 16:09:03,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:03,663 INFO L85 PathProgramCache]: Analyzing trace with hash -499279893, now seen corresponding path program 1 times [2024-11-08 16:09:03,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:09:03,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284500914] [2024-11-08 16:09:03,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:03,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:03,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:03,665 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:03,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:09:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:09:03,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:09:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:09:03,898 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 16:09:03,902 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:09:03,904 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (20 of 21 remaining) [2024-11-08 16:09:03,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 21 remaining) [2024-11-08 16:09:03,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 21 remaining) [2024-11-08 16:09:03,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (17 of 21 remaining) [2024-11-08 16:09:03,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 21 remaining) [2024-11-08 16:09:03,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 21 remaining) [2024-11-08 16:09:03,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 21 remaining) [2024-11-08 16:09:03,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 21 remaining) [2024-11-08 16:09:03,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 21 remaining) [2024-11-08 16:09:03,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 21 remaining) [2024-11-08 16:09:03,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 21 remaining) [2024-11-08 16:09:03,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 21 remaining) [2024-11-08 16:09:03,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 21 remaining) [2024-11-08 16:09:03,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 21 remaining) [2024-11-08 16:09:03,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 21 remaining) [2024-11-08 16:09:03,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 21 remaining) [2024-11-08 16:09:03,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 21 remaining) [2024-11-08 16:09:03,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 21 remaining) [2024-11-08 16:09:03,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 21 remaining) [2024-11-08 16:09:03,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 21 remaining) [2024-11-08 16:09:03,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 21 remaining) [2024-11-08 16:09:03,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 16:09:04,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:04,120 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:09:04,175 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:09:04,175 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:09:04,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:09:04 BasicIcfg [2024-11-08 16:09:04,183 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:09:04,183 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:09:04,183 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:09:04,184 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:09:04,184 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:08:59" (3/4) ... [2024-11-08 16:09:04,186 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:09:04,188 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:09:04,190 INFO L158 Benchmark]: Toolchain (without parser) took 6900.34ms. Allocated memory was 77.6MB in the beginning and 130.0MB in the end (delta: 52.4MB). Free memory was 55.8MB in the beginning and 43.7MB in the end (delta: 12.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-11-08 16:09:04,193 INFO L158 Benchmark]: CDTParser took 1.34ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 53.4MB in the end (delta: 141.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:09:04,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 648.14ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 51.4MB in the end (delta: 4.4MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2024-11-08 16:09:04,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.13ms. Allocated memory is still 77.6MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:09:04,196 INFO L158 Benchmark]: Boogie Preprocessor took 90.92ms. Allocated memory is still 77.6MB. Free memory was 49.3MB in the beginning and 46.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:09:04,197 INFO L158 Benchmark]: RCFGBuilder took 1070.41ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 46.4MB in the beginning and 65.4MB in the end (delta: -19.0MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2024-11-08 16:09:04,198 INFO L158 Benchmark]: TraceAbstraction took 5010.65ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 64.5MB in the beginning and 43.7MB in the end (delta: 20.8MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2024-11-08 16:09:04,198 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 130.0MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:09:04,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 53.4MB in the end (delta: 141.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 648.14ms. Allocated memory is still 77.6MB. Free memory was 55.8MB in the beginning and 51.4MB in the end (delta: 4.4MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.13ms. Allocated memory is still 77.6MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.92ms. Allocated memory is still 77.6MB. Free memory was 49.3MB in the beginning and 46.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1070.41ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 46.4MB in the beginning and 65.4MB in the end (delta: -19.0MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5010.65ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 64.5MB in the beginning and 43.7MB in the end (delta: 20.8MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 130.0MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 690]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 690. Possible FailurePath: [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L707] 0 pthread_t id; [L708] 0 int i = 0; [L708] 0 int i = 0; [L709] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [\old(arg)={6:0}, __global_lock={3:0}, i={6:0}, id=0, mutex1={4:0}, mutex2={5:0}] [L700] 1 int *p = (int *) arg; VAL [\old(arg)={6:0}, __global_lock={3:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] EXPR 1 \read(*p) [L702] 1 (*p)++ VAL [\old(arg)={6:0}, __global_lock={3:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] 1 (*p)++ [L711] EXPR 0 \read(i) [L711] CALL 0 __VERIFIER_assert((i) == 0) [L691] COND TRUE 0 !(cond) [L691] CALL 0 reach_error() [L690] COND FALSE 0 !(0) VAL [\old(arg)={6:0}, __global_lock={3:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L690] 0 __assert_fail ("0", "racemacros.h", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={6:0}, __global_lock={3:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 21 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: 4.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 329 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 270 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 396 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 4 mSDtfsCounter, 396 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=6, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 399 SizeOfPredicates, 15 NumberOfNonLiveVariables, 470 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 16:09:04,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e78e743-ea46-40d5-aa49-e9a86e8e6f99/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: UNKNOWN: Overapproximated counterexample