./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:35:03,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:35:03,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-04-30 10:35:03,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:35:03,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:35:03,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:35:03,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:35:03,728 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:35:03,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:35:03,729 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:35:03,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:35:03,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:35:03,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:35:03,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:35:03,730 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:35:03,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:35:03,731 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:35:03,732 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:35:03,732 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:35:03,732 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:35:03,732 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:35:03,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:35:03,732 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:35:03,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:35:03,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:35:03,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:35:03,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:35:03,733 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2025-04-30 10:35:03,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:35:03,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:35:03,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:35:03,961 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:35:03,962 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:35:03,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-04-30 10:35:05,279 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3b700a07/71a76b902dfd4ffea4b41756ddf59c93/FLAG75dbb9636 [2025-04-30 10:35:05,538 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:35:05,538 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-04-30 10:35:05,552 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3b700a07/71a76b902dfd4ffea4b41756ddf59c93/FLAG75dbb9636 [2025-04-30 10:35:06,329 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3b700a07/71a76b902dfd4ffea4b41756ddf59c93 [2025-04-30 10:35:06,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:35:06,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:35:06,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:35:06,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:35:06,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:35:06,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc955d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06, skipping insertion in model container [2025-04-30 10:35:06,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:35:06,612 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:35:06,630 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:35:06,672 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:35:06,713 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:35:06,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06 WrapperNode [2025-04-30 10:35:06,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:35:06,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:35:06,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:35:06,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:35:06,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,749 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-04-30 10:35:06,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:35:06,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:35:06,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:35:06,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:35:06,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,768 INFO L175 MemorySlicer]: Split 16 memory accesses to 4 slices as follows [3, 5, 5, 3]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [1, 5, 5, 1]. The 2 writes are split as follows [1, 0, 0, 1]. [2025-04-30 10:35:06,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,773 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:35:06,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:35:06,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:35:06,781 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:35:06,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (1/1) ... [2025-04-30 10:35:06,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:35:06,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:35:06,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:35:06,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:35:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:35:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:35:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-30 10:35:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-30 10:35:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:35:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:35:06,831 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:35:06,922 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:35:06,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:35:07,046 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:35:07,046 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:35:07,127 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:35:07,128 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:35:07,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:35:07 BoogieIcfgContainer [2025-04-30 10:35:07,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:35:07,130 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:35:07,130 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:35:07,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:35:07,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:35:06" (1/3) ... [2025-04-30 10:35:07,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502be921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:35:07, skipping insertion in model container [2025-04-30 10:35:07,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:35:06" (2/3) ... [2025-04-30 10:35:07,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502be921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:35:07, skipping insertion in model container [2025-04-30 10:35:07,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:35:07" (3/3) ... [2025-04-30 10:35:07,136 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2025-04-30 10:35:07,146 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:35:07,147 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_10-ptrmunge_nr.i that has 2 procedures, 30 locations, 28 edges, 1 initial locations, 0 loop locations, and 9 error locations. [2025-04-30 10:35:07,147 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:35:07,180 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-30 10:35:07,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 65 flow [2025-04-30 10:35:07,242 INFO L116 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-04-30 10:35:07,244 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:35:07,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 28 events. 0/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 58 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-30 10:35:07,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 65 flow [2025-04-30 10:35:07,250 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 60 flow [2025-04-30 10:35:07,259 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:35:07,269 INFO L340 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;@2b7ef343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:35:07,270 INFO L341 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-04-30 10:35:07,275 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:35:07,275 INFO L116 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-04-30 10:35:07,276 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:35:07,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:35:07,276 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-30 10:35:07,277 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-04-30 10:35:07,280 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:35:07,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1664762794, now seen corresponding path program 1 times [2025-04-30 10:35:07,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:35:07,286 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998015633] [2025-04-30 10:35:07,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:35:07,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:35:07,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-30 10:35:07,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-30 10:35:07,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:35:07,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:35:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:35:07,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:35:07,555 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998015633] [2025-04-30 10:35:07,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998015633] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:35:07,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:35:07,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:35:07,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055993708] [2025-04-30 10:35:07,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:35:07,564 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:35:07,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:35:07,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:35:07,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:35:07,618 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2025-04-30 10:35:07,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-04-30 10:35:07,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:35:07,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2025-04-30 10:35:07,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:35:07,694 INFO L116 PetriNetUnfolderBase]: 25/101 cut-off events. [2025-04-30 10:35:07,694 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:35:07,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 101 events. 25/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 364 event pairs, 5 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 156. Up to 44 conditions per place. [2025-04-30 10:35:07,696 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2025-04-30 10:35:07,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 102 flow [2025-04-30 10:35:07,698 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:35:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:35:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-04-30 10:35:07,707 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2025-04-30 10:35:07,708 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 4 states and 72 transitions. [2025-04-30 10:35:07,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 102 flow [2025-04-30 10:35:07,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-30 10:35:07,715 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 58 flow [2025-04-30 10:35:07,717 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2025-04-30 10:35:07,720 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2025-04-30 10:35:07,720 INFO L485 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 58 flow [2025-04-30 10:35:07,720 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-04-30 10:35:07,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:35:07,720 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-30 10:35:07,720 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:35:07,720 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-04-30 10:35:07,721 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:35:07,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1665253555, now seen corresponding path program 1 times [2025-04-30 10:35:07,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:35:07,721 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463409416] [2025-04-30 10:35:07,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:35:07,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:35:07,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-30 10:35:07,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-30 10:35:07,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:35:07,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:35:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:35:07,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:35:07,842 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463409416] [2025-04-30 10:35:07,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463409416] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:35:07,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:35:07,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:35:07,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351769339] [2025-04-30 10:35:07,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:35:07,843 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:35:07,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:35:07,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:35:07,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:35:07,869 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2025-04-30 10:35:07,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-04-30 10:35:07,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:35:07,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2025-04-30 10:35:07,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:35:07,914 INFO L116 PetriNetUnfolderBase]: 25/97 cut-off events. [2025-04-30 10:35:07,914 INFO L117 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-04-30 10:35:07,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 97 events. 25/97 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 341 event pairs, 5 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 90. Up to 44 conditions per place. [2025-04-30 10:35:07,915 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2025-04-30 10:35:07,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 104 flow [2025-04-30 10:35:07,916 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:35:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:35:07,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-04-30 10:35:07,916 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2025-04-30 10:35:07,916 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 58 flow. Second operand 4 states and 72 transitions. [2025-04-30 10:35:07,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 104 flow [2025-04-30 10:35:07,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:35:07,917 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 54 flow [2025-04-30 10:35:07,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2025-04-30 10:35:07,918 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2025-04-30 10:35:07,918 INFO L485 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 54 flow [2025-04-30 10:35:07,918 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-04-30 10:35:07,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:35:07,918 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-30 10:35:07,918 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:35:07,919 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-04-30 10:35:07,919 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:35:07,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1665253556, now seen corresponding path program 1 times [2025-04-30 10:35:07,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:35:07,919 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790233377] [2025-04-30 10:35:07,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:35:07,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:35:07,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-30 10:35:07,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-30 10:35:07,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:35:07,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:35:08,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:35:08,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:35:08,059 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790233377] [2025-04-30 10:35:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790233377] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:35:08,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:35:08,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:35:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978583291] [2025-04-30 10:35:08,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:35:08,059 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:35:08,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:35:08,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:35:08,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:35:08,093 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2025-04-30 10:35:08,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-04-30 10:35:08,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:35:08,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2025-04-30 10:35:08,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:35:08,157 INFO L116 PetriNetUnfolderBase]: 25/81 cut-off events. [2025-04-30 10:35:08,157 INFO L117 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-04-30 10:35:08,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 81 events. 25/81 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 232 event pairs, 11 based on Foata normal form. 6/83 useless extension candidates. Maximal degree in co-relation 56. Up to 44 conditions per place. [2025-04-30 10:35:08,158 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2025-04-30 10:35:08,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 96 flow [2025-04-30 10:35:08,158 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:35:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:35:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-04-30 10:35:08,160 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2025-04-30 10:35:08,160 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 54 flow. Second operand 4 states and 72 transitions. [2025-04-30 10:35:08,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 96 flow [2025-04-30 10:35:08,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:35:08,160 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 50 flow [2025-04-30 10:35:08,160 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2025-04-30 10:35:08,161 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2025-04-30 10:35:08,161 INFO L485 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 50 flow [2025-04-30 10:35:08,161 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-04-30 10:35:08,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:35:08,161 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-30 10:35:08,161 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:35:08,161 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-04-30 10:35:08,162 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:35:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1664762795, now seen corresponding path program 1 times [2025-04-30 10:35:08,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:35:08,162 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828852506] [2025-04-30 10:35:08,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:35:08,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:35:08,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-30 10:35:08,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-30 10:35:08,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:35:08,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:35:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:35:08,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:35:08,252 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828852506] [2025-04-30 10:35:08,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828852506] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:35:08,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:35:08,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:35:08,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60661532] [2025-04-30 10:35:08,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:35:08,254 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:35:08,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:35:08,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:35:08,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:35:08,267 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2025-04-30 10:35:08,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-04-30 10:35:08,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:35:08,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2025-04-30 10:35:08,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:35:08,308 INFO L116 PetriNetUnfolderBase]: 25/77 cut-off events. [2025-04-30 10:35:08,308 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-30 10:35:08,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 77 events. 25/77 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 212 event pairs, 11 based on Foata normal form. 6/81 useless extension candidates. Maximal degree in co-relation 80. Up to 44 conditions per place. [2025-04-30 10:35:08,309 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2025-04-30 10:35:08,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 96 flow [2025-04-30 10:35:08,309 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:35:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-30 10:35:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-04-30 10:35:08,310 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2025-04-30 10:35:08,310 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 50 flow. Second operand 4 states and 72 transitions. [2025-04-30 10:35:08,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 96 flow [2025-04-30 10:35:08,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:35:08,311 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 46 flow [2025-04-30 10:35:08,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2025-04-30 10:35:08,311 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2025-04-30 10:35:08,311 INFO L485 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 46 flow [2025-04-30 10:35:08,311 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2025-04-30 10:35:08,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:35:08,312 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:35:08,312 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:35:08,312 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-04-30 10:35:08,312 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:35:08,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1282818976, now seen corresponding path program 1 times [2025-04-30 10:35:08,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:35:08,312 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186647674] [2025-04-30 10:35:08,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:35:08,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:35:08,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-30 10:35:08,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-30 10:35:08,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:35:08,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:35:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:35:08,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:35:08,350 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186647674] [2025-04-30 10:35:08,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186647674] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:35:08,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:35:08,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-30 10:35:08,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156274131] [2025-04-30 10:35:08,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:35:08,351 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:35:08,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:35:08,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:35:08,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:35:08,361 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2025-04-30 10:35:08,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2025-04-30 10:35:08,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:35:08,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2025-04-30 10:35:08,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:35:08,386 INFO L116 PetriNetUnfolderBase]: 25/76 cut-off events. [2025-04-30 10:35:08,386 INFO L117 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-04-30 10:35:08,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 76 events. 25/76 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 205 event pairs, 25 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 86. Up to 63 conditions per place. [2025-04-30 10:35:08,387 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2025-04-30 10:35:08,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 70 flow [2025-04-30 10:35:08,387 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:35:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:35:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2025-04-30 10:35:08,388 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2025-04-30 10:35:08,388 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 46 flow. Second operand 3 states and 56 transitions. [2025-04-30 10:35:08,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 70 flow [2025-04-30 10:35:08,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-30 10:35:08,388 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2025-04-30 10:35:08,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2025-04-30 10:35:08,389 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2025-04-30 10:35:08,389 INFO L485 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2025-04-30 10:35:08,389 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2025-04-30 10:35:08,391 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2025-04-30 10:35:08,391 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2025-04-30 10:35:08,392 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2025-04-30 10:35:08,393 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:35:08,393 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-30 10:35:08,396 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:35:08,397 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:35:08,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:35:08 BasicIcfg [2025-04-30 10:35:08,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:35:08,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:35:08,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:35:08,401 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:35:08,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:35:07" (3/4) ... [2025-04-30 10:35:08,403 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:35:08,405 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:35:08,407 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2025-04-30 10:35:08,407 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-30 10:35:08,407 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:35:08,408 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:35:08,458 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:35:08,458 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:35:08,458 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:35:08,459 INFO L158 Benchmark]: Toolchain (without parser) took 2126.89ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 59.5MB in the end (delta: 54.2MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2025-04-30 10:35:08,459 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 201.3MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:35:08,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.97ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 83.1MB in the end (delta: 30.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-30 10:35:08,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.63ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 80.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:35:08,461 INFO L158 Benchmark]: Boogie Preprocessor took 30.47ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 78.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:35:08,461 INFO L158 Benchmark]: RCFGBuilder took 347.58ms. Allocated memory is still 142.6MB. Free memory was 78.7MB in the beginning and 52.7MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:35:08,461 INFO L158 Benchmark]: TraceAbstraction took 1270.16ms. Allocated memory is still 142.6MB. Free memory was 52.3MB in the beginning and 65.3MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:35:08,462 INFO L158 Benchmark]: Witness Printer took 57.74ms. Allocated memory is still 142.6MB. Free memory was 65.3MB in the beginning and 59.5MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:35:08,463 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 201.3MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.97ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 83.1MB in the end (delta: 30.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.63ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 80.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.47ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 78.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 347.58ms. Allocated memory is still 142.6MB. Free memory was 78.7MB in the beginning and 52.7MB in the end (delta: 26.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1270.16ms. Allocated memory is still 142.6MB. Free memory was 52.3MB in the beginning and 65.3MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.74ms. Allocated memory is still 142.6MB. Free memory was 65.3MB in the beginning and 59.5MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 930]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 43 locations, 42 edges, 14 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: 1.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 217 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 9 mSDtfsCounter, 217 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 0.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:35:08,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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