./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/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_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/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_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/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 d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:14:23,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:14:23,702 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 17:14:23,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:14:23,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:14:23,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:14:23,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:14:23,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:14:23,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:14:23,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:14:23,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:14:23,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:14:23,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:14:23,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:14:23,750 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:14:23,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:14:23,751 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:14:23,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:14:23,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:14:23,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:14:23,753 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 17:14:23,754 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 17:14:23,755 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 17:14:23,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:14:23,756 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:14:23,757 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:14:23,757 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:14:23,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:14:23,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:14:23,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:14:23,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:14:23,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:14:23,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:14:23,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:14:23,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:14:23,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:14:23,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:14:23,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:14:23,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:14:23,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:14:23,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:14:23,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:14:23,767 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_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 [2024-11-08 17:14:24,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:14:24,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:14:24,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:14:24,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:14:24,207 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:14:24,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c Unable to find full path for "g++" [2024-11-08 17:14:27,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:14:27,371 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:14:27,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2024-11-08 17:14:27,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/data/696926e82/2ca91827ac5d42a185b21e57f3e546d9/FLAG23e71b82b [2024-11-08 17:14:27,654 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/data/696926e82/2ca91827ac5d42a185b21e57f3e546d9 [2024-11-08 17:14:27,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:14:27,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:14:27,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:14:27,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:14:27,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:14:27,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:14:27" (1/1) ... [2024-11-08 17:14:27,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6503fc34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:27, skipping insertion in model container [2024-11-08 17:14:27,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:14:27" (1/1) ... [2024-11-08 17:14:27,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:14:28,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:14:28,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:14:28,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:14:28,094 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:14:28,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28 WrapperNode [2024-11-08 17:14:28,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:14:28,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:14:28,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:14:28,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:14:28,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,174 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 198 [2024-11-08 17:14:28,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:14:28,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:14:28,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:14:28,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:14:28,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,201 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,238 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:14:28,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:14:28,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:14:28,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:14:28,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:14:28,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (1/1) ... [2024-11-08 17:14:28,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:14:28,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:14:28,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:14:28,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:14:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:14:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 17:14:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 17:14:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 17:14:28,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 17:14:28,376 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 17:14:28,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 17:14:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:14:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:14:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:14:28,384 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 17:14:28,537 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:14:28,540 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:14:29,173 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:14:29,174 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:14:30,003 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:14:30,003 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:14:30,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:30 BoogieIcfgContainer [2024-11-08 17:14:30,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:14:30,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:14:30,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:14:30,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:14:30,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:14:27" (1/3) ... [2024-11-08 17:14:30,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204b3b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:14:30, skipping insertion in model container [2024-11-08 17:14:30,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:14:28" (2/3) ... [2024-11-08 17:14:30,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204b3b70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:14:30, skipping insertion in model container [2024-11-08 17:14:30,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:30" (3/3) ... [2024-11-08 17:14:30,039 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2024-11-08 17:14:30,065 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:14:30,066 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:14:30,066 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:14:30,182 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 17:14:30,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 63 flow [2024-11-08 17:14:30,308 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-08 17:14:30,309 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 17:14:30,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 18 events. 0/18 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-08 17:14:30,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 21 transitions, 63 flow [2024-11-08 17:14:30,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 17 transitions, 52 flow [2024-11-08 17:14:30,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:14:30,359 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;@315ad69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:14:30,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-08 17:14:30,389 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:14:30,390 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-08 17:14:30,390 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 17:14:30,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:30,391 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:30,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-08 17:14:30,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 135442657, now seen corresponding path program 1 times [2024-11-08 17:14:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:30,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963196538] [2024-11-08 17:14:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:30,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:38,015 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 17:14:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:38,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963196538] [2024-11-08 17:14:38,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963196538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:38,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:38,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:14:38,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221481572] [2024-11-08 17:14:38,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:38,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:14:38,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:38,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:14:38,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:14:38,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-08 17:14:38,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 17:14:38,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:38,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-08 17:14:38,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:39,492 INFO L124 PetriNetUnfolderBase]: 32/85 cut-off events. [2024-11-08 17:14:39,493 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-08 17:14:39,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 85 events. 32/85 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 223 event pairs, 1 based on Foata normal form. 3/88 useless extension candidates. Maximal degree in co-relation 145. Up to 34 conditions per place. [2024-11-08 17:14:39,500 INFO L140 encePairwiseOnDemand]: 15/21 looper letters, 26 selfloop transitions, 6 changer transitions 5/38 dead transitions. [2024-11-08 17:14:39,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 198 flow [2024-11-08 17:14:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:14:39,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:14:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-11-08 17:14:39,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-08 17:14:39,526 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 52 flow. Second operand 6 states and 70 transitions. [2024-11-08 17:14:39,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 198 flow [2024-11-08 17:14:39,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 38 transitions, 166 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-08 17:14:39,539 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 69 flow [2024-11-08 17:14:39,542 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-11-08 17:14:39,551 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-11-08 17:14:39,551 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 69 flow [2024-11-08 17:14:39,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 17:14:39,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:39,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:39,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:14:39,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-08 17:14:39,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:39,557 INFO L85 PathProgramCache]: Analyzing trace with hash 749168443, now seen corresponding path program 2 times [2024-11-08 17:14:39,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:39,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899952797] [2024-11-08 17:14:39,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:39,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:43,495 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 17:14:43,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:43,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899952797] [2024-11-08 17:14:43,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899952797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:43,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:14:43,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602582528] [2024-11-08 17:14:43,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:43,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:14:43,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:43,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:14:43,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:14:43,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-08 17:14:43,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 69 flow. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 17:14:43,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:43,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-08 17:14:43,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:44,874 INFO L124 PetriNetUnfolderBase]: 31/97 cut-off events. [2024-11-08 17:14:44,874 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-08 17:14:44,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 97 events. 31/97 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 321 event pairs, 3 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 256. Up to 46 conditions per place. [2024-11-08 17:14:44,880 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 26 selfloop transitions, 7 changer transitions 7/41 dead transitions. [2024-11-08 17:14:44,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 213 flow [2024-11-08 17:14:44,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:14:44,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:14:44,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 75 transitions. [2024-11-08 17:14:44,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2024-11-08 17:14:44,885 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 69 flow. Second operand 7 states and 75 transitions. [2024-11-08 17:14:44,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 213 flow [2024-11-08 17:14:44,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 41 transitions, 209 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-08 17:14:44,895 INFO L231 Difference]: Finished difference. Result has 34 places, 20 transitions, 98 flow [2024-11-08 17:14:44,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=98, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2024-11-08 17:14:44,897 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2024-11-08 17:14:44,897 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 98 flow [2024-11-08 17:14:44,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 17:14:44,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:44,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:44,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:14:44,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-08 17:14:44,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:44,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1628598763, now seen corresponding path program 3 times [2024-11-08 17:14:44,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:44,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843107847] [2024-11-08 17:14:44,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:44,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:47,869 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 17:14:47,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:47,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843107847] [2024-11-08 17:14:47,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843107847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:47,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:14:47,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626999095] [2024-11-08 17:14:47,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:47,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:14:47,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:47,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:14:47,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:14:47,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-08 17:14:47,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 17:14:47,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:47,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-08 17:14:47,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:48,653 INFO L124 PetriNetUnfolderBase]: 28/87 cut-off events. [2024-11-08 17:14:48,654 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-08 17:14:48,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 87 events. 28/87 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 268 event pairs, 1 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 284. Up to 42 conditions per place. [2024-11-08 17:14:48,658 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 23 selfloop transitions, 6 changer transitions 9/39 dead transitions. [2024-11-08 17:14:48,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 235 flow [2024-11-08 17:14:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:14:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:14:48,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2024-11-08 17:14:48,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2024-11-08 17:14:48,662 INFO L175 Difference]: Start difference. First operand has 34 places, 20 transitions, 98 flow. Second operand 6 states and 68 transitions. [2024-11-08 17:14:48,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 235 flow [2024-11-08 17:14:48,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 220 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-08 17:14:48,668 INFO L231 Difference]: Finished difference. Result has 37 places, 19 transitions, 97 flow [2024-11-08 17:14:48,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=37, PETRI_TRANSITIONS=19} [2024-11-08 17:14:48,670 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2024-11-08 17:14:48,671 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 19 transitions, 97 flow [2024-11-08 17:14:48,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 17:14:48,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:48,672 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:48,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:14:48,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-08 17:14:48,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:48,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1604475097, now seen corresponding path program 4 times [2024-11-08 17:14:48,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:48,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233472099] [2024-11-08 17:14:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:48,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:54,876 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 17:14:54,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:54,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233472099] [2024-11-08 17:14:54,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233472099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:54,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:54,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:14:54,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899633323] [2024-11-08 17:14:54,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:54,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:14:54,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:54,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:14:54,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:14:54,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-08 17:14:54,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 19 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 17:14:54,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:14:54,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-08 17:14:54,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:14:58,184 INFO L124 PetriNetUnfolderBase]: 15/51 cut-off events. [2024-11-08 17:14:58,184 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-11-08 17:14:58,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 51 events. 15/51 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 110 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 179. Up to 16 conditions per place. [2024-11-08 17:14:58,186 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 16 selfloop transitions, 5 changer transitions 10/32 dead transitions. [2024-11-08 17:14:58,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 200 flow [2024-11-08 17:14:58,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:14:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:14:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 66 transitions. [2024-11-08 17:14:58,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4489795918367347 [2024-11-08 17:14:58,190 INFO L175 Difference]: Start difference. First operand has 37 places, 19 transitions, 97 flow. Second operand 7 states and 66 transitions. [2024-11-08 17:14:58,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 200 flow [2024-11-08 17:14:58,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 179 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-08 17:14:58,197 INFO L231 Difference]: Finished difference. Result has 36 places, 17 transitions, 76 flow [2024-11-08 17:14:58,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=76, PETRI_PLACES=36, PETRI_TRANSITIONS=17} [2024-11-08 17:14:58,203 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2024-11-08 17:14:58,203 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 17 transitions, 76 flow [2024-11-08 17:14:58,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 17:14:58,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:14:58,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:58,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:14:58,205 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-08 17:14:58,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1173832389, now seen corresponding path program 5 times [2024-11-08 17:14:58,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:58,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996964000] [2024-11-08 17:14:58,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:58,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:15:00,623 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 17:15:00,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:15:00,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996964000] [2024-11-08 17:15:00,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996964000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:15:00,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:15:00,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:15:00,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508472362] [2024-11-08 17:15:00,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:15:00,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:15:00,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:15:00,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:15:00,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:15:00,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-08 17:15:00,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 17 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 17:15:00,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:15:00,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-08 17:15:00,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:15:01,300 INFO L124 PetriNetUnfolderBase]: 8/37 cut-off events. [2024-11-08 17:15:01,301 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-08 17:15:01,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 37 events. 8/37 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 125. Up to 17 conditions per place. [2024-11-08 17:15:01,302 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 13 selfloop transitions, 3 changer transitions 10/27 dead transitions. [2024-11-08 17:15:01,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 160 flow [2024-11-08 17:15:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:15:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:15:01,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 57 transitions. [2024-11-08 17:15:01,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-11-08 17:15:01,308 INFO L175 Difference]: Start difference. First operand has 36 places, 17 transitions, 76 flow. Second operand 6 states and 57 transitions. [2024-11-08 17:15:01,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 160 flow [2024-11-08 17:15:01,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 129 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-08 17:15:01,314 INFO L231 Difference]: Finished difference. Result has 32 places, 15 transitions, 53 flow [2024-11-08 17:15:01,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=53, PETRI_PLACES=32, PETRI_TRANSITIONS=15} [2024-11-08 17:15:01,315 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2024-11-08 17:15:01,316 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 15 transitions, 53 flow [2024-11-08 17:15:01,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 17:15:01,316 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:15:01,316 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:15:01,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:15:01,317 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-08 17:15:01,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:15:01,322 INFO L85 PathProgramCache]: Analyzing trace with hash -318525735, now seen corresponding path program 6 times [2024-11-08 17:15:01,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:15:01,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682522583] [2024-11-08 17:15:01,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:15:01,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:15:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:15:05,926 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 17:15:05,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:15:05,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682522583] [2024-11-08 17:15:05,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682522583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:15:05,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:15:05,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:15:05,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127842101] [2024-11-08 17:15:05,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:15:05,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:15:05,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:15:05,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:15:05,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:15:05,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 21 [2024-11-08 17:15:05,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 15 transitions, 53 flow. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 17:15:05,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:15:05,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 21 [2024-11-08 17:15:05,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:15:06,642 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-08 17:15:06,642 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:15:06,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 19 events. 3/19 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 58. Up to 7 conditions per place. [2024-11-08 17:15:06,643 INFO L140 encePairwiseOnDemand]: 16/21 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2024-11-08 17:15:06,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 16 transitions, 85 flow [2024-11-08 17:15:06,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:15:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:15:06,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2024-11-08 17:15:06,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.373015873015873 [2024-11-08 17:15:06,645 INFO L175 Difference]: Start difference. First operand has 32 places, 15 transitions, 53 flow. Second operand 6 states and 47 transitions. [2024-11-08 17:15:06,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 16 transitions, 85 flow [2024-11-08 17:15:06,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 16 transitions, 71 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-08 17:15:06,647 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-11-08 17:15:06,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2024-11-08 17:15:06,649 INFO L277 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2024-11-08 17:15:06,649 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-11-08 17:15:06,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 17:15:06,653 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-08 17:15:06,654 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-08 17:15:06,654 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-08 17:15:06,654 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-08 17:15:06,655 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-08 17:15:06,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:15:06,656 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-11-08 17:15:06,659 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 17:15:06,660 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:15:06,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:15:06 BasicIcfg [2024-11-08 17:15:06,668 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:15:06,669 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:15:06,669 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:15:06,670 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:15:06,670 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:14:30" (3/4) ... [2024-11-08 17:15:06,674 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:15:06,680 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-08 17:15:06,680 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-08 17:15:06,680 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-08 17:15:06,688 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 95 nodes and edges [2024-11-08 17:15:06,689 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-08 17:15:06,689 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-08 17:15:06,690 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 17:15:06,829 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:15:06,830 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:15:06,830 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:15:06,831 INFO L158 Benchmark]: Toolchain (without parser) took 39170.24ms. Allocated memory was 138.4MB in the beginning and 641.7MB in the end (delta: 503.3MB). Free memory was 101.4MB in the beginning and 505.1MB in the end (delta: -403.6MB). Peak memory consumption was 101.1MB. Max. memory is 16.1GB. [2024-11-08 17:15:06,832 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 138.4MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:15:06,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.31ms. Allocated memory is still 138.4MB. Free memory was 101.0MB in the beginning and 87.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 17:15:06,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.28ms. Allocated memory is still 138.4MB. Free memory was 87.6MB in the beginning and 85.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:15:06,834 INFO L158 Benchmark]: Boogie Preprocessor took 94.99ms. Allocated memory is still 138.4MB. Free memory was 85.1MB in the beginning and 82.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:15:06,835 INFO L158 Benchmark]: RCFGBuilder took 1731.96ms. Allocated memory was 138.4MB in the beginning and 188.7MB in the end (delta: 50.3MB). Free memory was 82.6MB in the beginning and 88.0MB in the end (delta: -5.5MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2024-11-08 17:15:06,836 INFO L158 Benchmark]: TraceAbstraction took 36639.46ms. Allocated memory was 188.7MB in the beginning and 641.7MB in the end (delta: 453.0MB). Free memory was 155.5MB in the beginning and 510.3MB in the end (delta: -354.8MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2024-11-08 17:15:06,837 INFO L158 Benchmark]: Witness Printer took 161.03ms. Allocated memory is still 641.7MB. Free memory was 510.3MB in the beginning and 505.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:15:06,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 138.4MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.31ms. Allocated memory is still 138.4MB. Free memory was 101.0MB in the beginning and 87.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.28ms. Allocated memory is still 138.4MB. Free memory was 87.6MB in the beginning and 85.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.99ms. Allocated memory is still 138.4MB. Free memory was 85.1MB in the beginning and 82.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1731.96ms. Allocated memory was 138.4MB in the beginning and 188.7MB in the end (delta: 50.3MB). Free memory was 82.6MB in the beginning and 88.0MB in the end (delta: -5.5MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. * TraceAbstraction took 36639.46ms. Allocated memory was 188.7MB in the beginning and 641.7MB in the end (delta: 453.0MB). Free memory was 155.5MB in the beginning and 510.3MB in the end (delta: -354.8MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. * Witness Printer took 161.03ms. Allocated memory is still 641.7MB. Free memory was 510.3MB in the beginning and 505.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 61]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 31 locations, 5 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: 36.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 373 IncrementalHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 373 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=2, InterpolantAutomatonStates: 38, 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, 1.1s SatisfiabilityAnalysisTime, 26.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 3348 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 17:15:06,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_328abcf7-8264-4f64-bbe1-f9ab6ea90f98/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