./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.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_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/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_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/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_4b850649-1ed5-4839-b80d-e60908bf9bac/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 f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:49:52,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:49:52,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 18:49:52,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:49:52,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:49:52,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:49:52,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:49:52,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:49:52,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:49:52,385 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:49:52,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:49:52,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:49:52,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:49:52,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:49:52,391 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:49:52,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:49:52,396 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:49:52,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:49:52,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:49:52,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:49:52,397 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:49:52,402 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:49:52,403 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 18:49:52,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:49:52,403 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:49:52,404 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:49:52,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:49:52,404 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:49:52,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:49:52,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:49:52,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:49:52,408 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:49:52,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:49:52,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:52,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:49:52,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:49:52,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:49:52,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:49:52,412 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:49:52,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:49:52,412 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:49:52,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:49:52,413 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_4b850649-1ed5-4839-b80d-e60908bf9bac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf [2024-11-08 18:49:52,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:49:52,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:49:52,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:49:52,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:49:52,795 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:49:52,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i Unable to find full path for "g++" [2024-11-08 18:49:55,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:49:55,610 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:49:55,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i [2024-11-08 18:49:55,630 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/data/a9ccb01d5/7c8642427615466eb9154d3123d7cc94/FLAG43a9c84d2 [2024-11-08 18:49:55,650 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/data/a9ccb01d5/7c8642427615466eb9154d3123d7cc94 [2024-11-08 18:49:55,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:49:55,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:49:55,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:55,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:49:55,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:49:55,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:55" (1/1) ... [2024-11-08 18:49:55,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe21555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:55, skipping insertion in model container [2024-11-08 18:49:55,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:55" (1/1) ... [2024-11-08 18:49:55,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:49:56,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:56,320 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:49:56,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:56,484 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:49:56,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56 WrapperNode [2024-11-08 18:49:56,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:56,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:56,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:49:56,488 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:49:56,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,558 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-08 18:49:56,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:56,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:49:56,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:49:56,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:49:56,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,618 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [8, 10]. 56 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10]. The 3 writes are split as follows [3, 0]. [2024-11-08 18:49:56,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:49:56,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:49:56,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:49:56,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:49:56,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (1/1) ... [2024-11-08 18:49:56,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:56,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:49:56,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:49:56,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:49:56,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:49:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:49:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:49:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:49:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:49:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:49:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:49:56,746 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:49:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:49:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:49:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:49:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:49:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:49:56,751 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:49:56,978 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:49:56,981 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:49:57,260 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:49:57,279 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:49:57,547 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:49:57,547 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:49:57,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:57 BoogieIcfgContainer [2024-11-08 18:49:57,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:49:57,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:49:57,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:49:57,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:49:57,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:49:55" (1/3) ... [2024-11-08 18:49:57,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d2e604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:49:57, skipping insertion in model container [2024-11-08 18:49:57,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:56" (2/3) ... [2024-11-08 18:49:57,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d2e604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:49:57, skipping insertion in model container [2024-11-08 18:49:57,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:57" (3/3) ... [2024-11-08 18:49:57,562 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_12-fldsense_nr.i [2024-11-08 18:49:57,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:49:57,588 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-08 18:49:57,588 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:49:57,663 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 18:49:57,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 78 flow [2024-11-08 18:49:57,780 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-11-08 18:49:57,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:49:57,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-08 18:49:57,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 37 transitions, 78 flow [2024-11-08 18:49:57,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2024-11-08 18:49:57,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:49:57,825 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;@52c61eb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:49:57,826 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-08 18:49:57,838 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:49:57,839 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-08 18:49:57,839 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:49:57,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:49:57,840 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:49:57,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-08 18:49:57,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:57,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1932458963, now seen corresponding path program 1 times [2024-11-08 18:49:57,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:57,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706158386] [2024-11-08 18:49:57,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:57,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:58,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:49:58,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:58,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706158386] [2024-11-08 18:49:58,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706158386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:58,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:58,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:49:58,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730280163] [2024-11-08 18:49:58,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:58,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:49:58,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:58,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:49:58,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:49:58,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-08 18:49:58,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:49:58,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:49:58,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-08 18:49:58,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:49:58,640 INFO L124 PetriNetUnfolderBase]: 55/167 cut-off events. [2024-11-08 18:49:58,641 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:49:58,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 167 events. 55/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 613 event pairs, 55 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 291. Up to 128 conditions per place. [2024-11-08 18:49:58,648 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 17 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2024-11-08 18:49:58,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 99 flow [2024-11-08 18:49:58,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:49:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:49:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-11-08 18:49:58,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2024-11-08 18:49:58,670 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 75 flow. Second operand 3 states and 63 transitions. [2024-11-08 18:49:58,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 99 flow [2024-11-08 18:49:58,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:49:58,679 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 64 flow [2024-11-08 18:49:58,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-08 18:49:58,689 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -5 predicate places. [2024-11-08 18:49:58,690 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 64 flow [2024-11-08 18:49:58,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:49:58,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:49:58,692 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:49:58,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:49:58,692 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-08 18:49:58,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:58,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1932458964, now seen corresponding path program 1 times [2024-11-08 18:49:58,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:58,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132863216] [2024-11-08 18:49:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:58,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:49:59,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:59,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132863216] [2024-11-08 18:49:59,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132863216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:59,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:59,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:49:59,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118048053] [2024-11-08 18:49:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:59,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:49:59,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:59,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:49:59,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:49:59,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-08 18:49:59,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:49:59,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:49:59,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-08 18:49:59,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:49:59,229 INFO L124 PetriNetUnfolderBase]: 55/149 cut-off events. [2024-11-08 18:49:59,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:49:59,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 149 events. 55/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 489 event pairs, 55 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 277. Up to 128 conditions per place. [2024-11-08 18:49:59,235 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 16 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2024-11-08 18:49:59,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 88 flow [2024-11-08 18:49:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:49:59,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:49:59,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-11-08 18:49:59,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2024-11-08 18:49:59,241 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 64 flow. Second operand 3 states and 63 transitions. [2024-11-08 18:49:59,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 88 flow [2024-11-08 18:49:59,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 87 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:49:59,245 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 51 flow [2024-11-08 18:49:59,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2024-11-08 18:49:59,247 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -10 predicate places. [2024-11-08 18:49:59,247 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 51 flow [2024-11-08 18:49:59,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:49:59,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:49:59,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:49:59,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:49:59,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-08 18:49:59,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:59,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1322123299, now seen corresponding path program 1 times [2024-11-08 18:49:59,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:59,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046826944] [2024-11-08 18:49:59,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:59,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:49:59,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046826944] [2024-11-08 18:49:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046826944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:59,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:59,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:49:59,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419555446] [2024-11-08 18:49:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:59,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:49:59,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:59,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:49:59,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:49:59,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 37 [2024-11-08 18:49:59,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:49:59,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:49:59,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 37 [2024-11-08 18:49:59,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:49:59,494 INFO L124 PetriNetUnfolderBase]: 50/132 cut-off events. [2024-11-08 18:49:59,495 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:49:59,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 132 events. 50/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 422 event pairs, 50 based on Foata normal form. 6/135 useless extension candidates. Maximal degree in co-relation 249. Up to 117 conditions per place. [2024-11-08 18:49:59,496 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2024-11-08 18:49:59,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 83 flow [2024-11-08 18:49:59,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:49:59,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:49:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-08 18:49:59,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-11-08 18:49:59,501 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 51 flow. Second operand 3 states and 72 transitions. [2024-11-08 18:49:59,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 83 flow [2024-11-08 18:49:59,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:49:59,502 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-11-08 18:49:59,502 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2024-11-08 18:49:59,503 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -11 predicate places. [2024-11-08 18:49:59,503 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-11-08 18:49:59,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:49:59,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2024-11-08 18:49:59,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2024-11-08 18:49:59,511 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2024-11-08 18:49:59,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2024-11-08 18:49:59,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2024-11-08 18:49:59,513 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2024-11-08 18:49:59,513 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2024-11-08 18:49:59,514 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2024-11-08 18:49:59,515 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (9 of 18 remaining) [2024-11-08 18:49:59,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-08 18:49:59,516 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2024-11-08 18:49:59,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2024-11-08 18:49:59,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2024-11-08 18:49:59,518 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2024-11-08 18:49:59,518 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2024-11-08 18:49:59,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2024-11-08 18:49:59,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2024-11-08 18:49:59,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2024-11-08 18:49:59,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:49:59,520 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 18:49:59,529 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 18:49:59,529 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:49:59,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:49:59 BasicIcfg [2024-11-08 18:49:59,538 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:49:59,539 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:49:59,539 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:49:59,539 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:49:59,540 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:57" (3/4) ... [2024-11-08 18:49:59,543 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:49:59,548 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-08 18:49:59,553 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-08 18:49:59,554 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 18:49:59,554 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 18:49:59,554 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:49:59,640 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:49:59,641 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:49:59,641 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:49:59,642 INFO L158 Benchmark]: Toolchain (without parser) took 3986.86ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 109.7MB in the beginning and 98.9MB in the end (delta: 10.8MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2024-11-08 18:49:59,644 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:49:59,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.76ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 87.5MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 18:49:59,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.75ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:49:59,645 INFO L158 Benchmark]: Boogie Preprocessor took 89.69ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:49:59,647 INFO L158 Benchmark]: RCFGBuilder took 898.29ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 83.0MB in the beginning and 131.0MB in the end (delta: -48.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-08 18:49:59,647 INFO L158 Benchmark]: TraceAbstraction took 1985.89ms. Allocated memory is still 172.0MB. Free memory was 130.2MB in the beginning and 103.1MB in the end (delta: 27.1MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-11-08 18:49:59,649 INFO L158 Benchmark]: Witness Printer took 102.12ms. Allocated memory is still 172.0MB. Free memory was 103.1MB in the beginning and 98.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:49:59,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 828.76ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 87.5MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.75ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.69ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 898.29ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 83.0MB in the beginning and 131.0MB in the end (delta: -48.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1985.89ms. Allocated memory is still 172.0MB. Free memory was 130.2MB in the beginning and 103.1MB in the end (delta: 27.1MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Witness Printer took 102.12ms. Allocated memory is still 172.0MB. Free memory was 103.1MB in the beginning and 98.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 687]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 51 locations, 18 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: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 7 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 18:49:59,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b850649-1ed5-4839-b80d-e60908bf9bac/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 Writing output log to file Ultimate.log Result: TRUE