./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/test-easy7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/test-easy7.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2089b8408f47d976db10454bec1f56d65e439056bc0b2c5e33c1e775793bdc1f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:18:03,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:18:03,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 23:18:03,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:18:03,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:18:03,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:18:03,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:18:03,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:18:03,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:18:03,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:18:03,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:18:03,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:18:03,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:18:03,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:18:03,446 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:18:03,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:18:03,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:18:03,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:18:03,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:18:03,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:18:03,447 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 23:18:03,447 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 23:18:03,447 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 23:18:03,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:18:03,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:18:03,448 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:18:03,448 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:18:03,448 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:18:03,448 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:18:03,448 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:18:03,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:18:03,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:18:03,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:18:03,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:18:03,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:18:03,449 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:18:03,449 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2089b8408f47d976db10454bec1f56d65e439056bc0b2c5e33c1e775793bdc1f [2024-11-27 23:18:03,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:18:03,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:18:03,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:18:03,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:18:03,767 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:18:03,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/test-easy7.wvr.c [2024-11-27 23:18:06,805 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/data/ea6264cbb/053ebb7435c148e5a412f68d159f474f/FLAGe06fcd401 [2024-11-27 23:18:07,127 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:18:07,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/sv-benchmarks/c/weaver/test-easy7.wvr.c [2024-11-27 23:18:07,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/data/ea6264cbb/053ebb7435c148e5a412f68d159f474f/FLAGe06fcd401 [2024-11-27 23:18:07,400 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/data/ea6264cbb/053ebb7435c148e5a412f68d159f474f [2024-11-27 23:18:07,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:18:07,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:18:07,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:18:07,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:18:07,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:18:07,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b401f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07, skipping insertion in model container [2024-11-27 23:18:07,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:18:07,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:18:07,621 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:18:07,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:18:07,648 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:18:07,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07 WrapperNode [2024-11-27 23:18:07,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:18:07,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:18:07,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:18:07,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:18:07,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,678 INFO L138 Inliner]: procedures = 20, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 45 [2024-11-27 23:18:07,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:18:07,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:18:07,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:18:07,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:18:07,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,701 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]. [2024-11-27 23:18:07,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,708 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:18:07,721 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:18:07,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:18:07,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:18:07,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (1/1) ... [2024-11-27 23:18:07,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:18:07,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:18:07,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:18:07,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:18:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:18:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 23:18:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 23:18:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 23:18:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 23:18:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:18:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:18:07,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:18:07,786 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:18:07,868 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:18:07,870 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:18:08,042 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:18:08,043 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:18:08,191 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:18:08,192 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:18:08,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:18:08 BoogieIcfgContainer [2024-11-27 23:18:08,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:18:08,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:18:08,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:18:08,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:18:08,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:18:07" (1/3) ... [2024-11-27 23:18:08,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4d948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:18:08, skipping insertion in model container [2024-11-27 23:18:08,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:07" (2/3) ... [2024-11-27 23:18:08,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4d948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:18:08, skipping insertion in model container [2024-11-27 23:18:08,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:18:08" (3/3) ... [2024-11-27 23:18:08,202 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2024-11-27 23:18:08,218 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:18:08,220 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy7.wvr.c that has 3 procedures, 17 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-27 23:18:08,220 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:18:08,274 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 23:18:08,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 16 transitions, 46 flow [2024-11-27 23:18:08,353 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-27 23:18:08,358 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 23:18:08,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 0/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-27 23:18:08,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 16 transitions, 46 flow [2024-11-27 23:18:08,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 13 transitions, 38 flow [2024-11-27 23:18:08,384 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:18:08,402 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;@748a87ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:18:08,406 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 23:18:08,420 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:18:08,420 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-27 23:18:08,421 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 23:18:08,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:18:08,422 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:08,423 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:18:08,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:08,430 INFO L85 PathProgramCache]: Analyzing trace with hash -694080193, now seen corresponding path program 1 times [2024-11-27 23:18:08,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:08,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153826164] [2024-11-27 23:18:08,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:18:08,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:18:09,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:09,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153826164] [2024-11-27 23:18:09,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153826164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:09,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:09,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:09,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581895602] [2024-11-27 23:18:09,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:09,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:18:09,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:09,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:18:09,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:18:09,104 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 16 [2024-11-27 23:18:09,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 38 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-27 23:18:09,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:18:09,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 16 [2024-11-27 23:18:09,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:18:09,199 INFO L124 PetriNetUnfolderBase]: 7/29 cut-off events. [2024-11-27 23:18:09,199 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-27 23:18:09,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 29 events. 7/29 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 2 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 42. Up to 16 conditions per place. [2024-11-27 23:18:09,201 INFO L140 encePairwiseOnDemand]: 11/16 looper letters, 11 selfloop transitions, 2 changer transitions 5/19 dead transitions. [2024-11-27 23:18:09,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 19 transitions, 95 flow [2024-11-27 23:18:09,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:18:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:18:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2024-11-27 23:18:09,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-11-27 23:18:09,216 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 38 flow. Second operand 4 states and 36 transitions. [2024-11-27 23:18:09,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 19 transitions, 95 flow [2024-11-27 23:18:09,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 19 transitions, 81 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 23:18:09,223 INFO L231 Difference]: Finished difference. Result has 18 places, 11 transitions, 36 flow [2024-11-27 23:18:09,225 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=36, PETRI_PLACES=18, PETRI_TRANSITIONS=11} [2024-11-27 23:18:09,228 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, -2 predicate places. [2024-11-27 23:18:09,228 INFO L471 AbstractCegarLoop]: Abstraction has has 18 places, 11 transitions, 36 flow [2024-11-27 23:18:09,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-27 23:18:09,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:18:09,229 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:18:09,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:18:09,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-27 23:18:09,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:18:09,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1827726783, now seen corresponding path program 2 times [2024-11-27 23:18:09,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:18:09,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144189407] [2024-11-27 23:18:09,230 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:18:09,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:18:09,266 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:18:09,266 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:18:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:18:09,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:09,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144189407] [2024-11-27 23:18:09,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144189407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:09,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:09,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:18:09,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313284625] [2024-11-27 23:18:09,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:09,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:18:09,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:09,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:18:09,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:18:09,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 16 [2024-11-27 23:18:09,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 11 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-27 23:18:09,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:18:09,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 16 [2024-11-27 23:18:09,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:18:09,658 INFO L124 PetriNetUnfolderBase]: 5/19 cut-off events. [2024-11-27 23:18:09,658 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-27 23:18:09,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 19 events. 5/19 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 1 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2024-11-27 23:18:09,659 INFO L140 encePairwiseOnDemand]: 12/16 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2024-11-27 23:18:09,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 13 transitions, 66 flow [2024-11-27 23:18:09,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:18:09,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:18:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2024-11-27 23:18:09,660 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46875 [2024-11-27 23:18:09,661 INFO L175 Difference]: Start difference. First operand has 18 places, 11 transitions, 36 flow. Second operand 4 states and 30 transitions. [2024-11-27 23:18:09,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 13 transitions, 66 flow [2024-11-27 23:18:09,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 13 transitions, 62 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:18:09,662 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2024-11-27 23:18:09,662 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2024-11-27 23:18:09,663 INFO L279 CegarLoopForPetriNet]: 20 programPoint places, -4 predicate places. [2024-11-27 23:18:09,663 INFO L471 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2024-11-27 23:18:09,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-27 23:18:09,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-27 23:18:09,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-27 23:18:09,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-27 23:18:09,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-27 23:18:09,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:18:09,671 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2024-11-27 23:18:09,679 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:18:09,679 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:18:09,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:18:09 BasicIcfg [2024-11-27 23:18:09,689 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:18:09,691 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:18:09,691 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:18:09,692 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:18:09,692 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:18:08" (3/4) ... [2024-11-27 23:18:09,697 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:18:09,701 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-27 23:18:09,701 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-27 23:18:09,708 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2024-11-27 23:18:09,709 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-27 23:18:09,709 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 23:18:09,710 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 23:18:09,818 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:18:09,818 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:18:09,819 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:18:09,820 INFO L158 Benchmark]: Toolchain (without parser) took 2414.28ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 57.3MB in the end (delta: 61.6MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2024-11-27 23:18:09,820 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:18:09,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.56ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 107.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:18:09,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.36ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 989.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:18:09,822 INFO L158 Benchmark]: Boogie Preprocessor took 41.99ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:18:09,822 INFO L158 Benchmark]: RCFGBuilder took 470.66ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 83.5MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:18:09,822 INFO L158 Benchmark]: TraceAbstraction took 1494.55ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 62.0MB in the end (delta: 20.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-11-27 23:18:09,823 INFO L158 Benchmark]: Witness Printer took 127.36ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 57.3MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:18:09,827 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 142.6MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.56ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 107.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.36ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 989.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.99ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 470.66ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 83.5MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1494.55ms. Allocated memory is still 142.6MB. Free memory was 83.0MB in the beginning and 62.0MB in the end (delta: 20.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 127.36ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 57.3MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. 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: 58]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.8s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 23:18:09,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217ed51b-c018-40e6-ac3b-e8f8d3e6d33c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE