./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_22-deref_read.c --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_22-deref_read.c -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 54c191cc49564ce4d296e5a7e73974f46b5dd8879e46f53896db0afd8c391b87 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:15:34,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:15:35,030 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-04-29 11:15:35,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:15:35,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:15:35,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:15:35,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:15:35,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:15:35,058 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 11:15:35,059 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 11:15:35,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:15:35,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:15:35,060 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:15:35,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:15:35,060 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:15:35,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:15:35,060 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:15:35,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:15:35,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:15:35,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:15:35,061 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:15:35,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:15:35,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:15:35,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:15:35,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:15:35,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:15:35,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:15:35,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:15:35,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:15:35,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:15:35,063 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 -> 54c191cc49564ce4d296e5a7e73974f46b5dd8879e46f53896db0afd8c391b87 [2025-04-29 11:15:35,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:15:35,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:15:35,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:15:35,296 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:15:35,296 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:15:35,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_22-deref_read.c [2025-04-29 11:15:36,596 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfac27e4f/ef6a527100984a468eac3603b2207a6a/FLAG111a489f5 [2025-04-29 11:15:36,770 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:15:36,770 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_22-deref_read.c [2025-04-29 11:15:36,773 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:15:36,777 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfac27e4f/ef6a527100984a468eac3603b2207a6a/FLAG111a489f5 [2025-04-29 11:15:37,596 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfac27e4f/ef6a527100984a468eac3603b2207a6a [2025-04-29 11:15:37,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:15:37,599 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:15:37,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:15:37,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:15:37,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:15:37,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3f9af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37, skipping insertion in model container [2025-04-29 11:15:37,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,612 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:15:37,754 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:15:37,761 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:15:37,779 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:15:37,793 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:15:37,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37 WrapperNode [2025-04-29 11:15:37,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:15:37,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:15:37,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:15:37,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:15:37,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,818 INFO L138 Inliner]: procedures = 11, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2025-04-29 11:15:37,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:15:37,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:15:37,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:15:37,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:15:37,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,842 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [3, 1]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1]. The 2 writes are split as follows [2, 0]. [2025-04-29 11:15:37,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,845 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:15:37,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:15:37,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:15:37,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:15:37,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (1/1) ... [2025-04-29 11:15:37,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:15:37,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:15:37,884 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) [2025-04-29 11:15:37,887 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 [2025-04-29 11:15:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-29 11:15:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-29 11:15:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:15:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:15:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:15:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:15:37,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:15:37,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-29 11:15:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-29 11:15:37,904 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:15:37,904 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:15:37,904 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:15:37,962 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:15:37,963 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:15:38,042 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:15:38,042 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:15:38,092 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:15:38,092 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:15:38,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:15:38 BoogieIcfgContainer [2025-04-29 11:15:38,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:15:38,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:15:38,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:15:38,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:15:38,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:15:37" (1/3) ... [2025-04-29 11:15:38,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c40be90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:15:38, skipping insertion in model container [2025-04-29 11:15:38,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:15:37" (2/3) ... [2025-04-29 11:15:38,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c40be90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:15:38, skipping insertion in model container [2025-04-29 11:15:38,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:15:38" (3/3) ... [2025-04-29 11:15:38,099 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_22-deref_read.c [2025-04-29 11:15:38,109 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:15:38,111 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_22-deref_read.c that has 2 procedures, 22 locations, 20 edges, 1 initial locations, 0 loop locations, and 5 error locations. [2025-04-29 11:15:38,111 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:15:38,144 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-29 11:15:38,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 21 transitions, 46 flow [2025-04-29 11:15:38,196 INFO L116 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-04-29 11:15:38,197 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:15:38,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 33 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-29 11:15:38,198 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 21 transitions, 46 flow [2025-04-29 11:15:38,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-04-29 11:15:38,205 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:15:38,214 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;@302b72fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:15:38,214 INFO L341 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-04-29 11:15:38,218 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:15:38,218 INFO L116 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-04-29 11:15:38,218 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:15:38,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:15:38,219 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-29 11:15:38,219 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-29 11:15:38,223 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:15:38,223 INFO L85 PathProgramCache]: Analyzing trace with hash -404541708, now seen corresponding path program 1 times [2025-04-29 11:15:38,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:15:38,228 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724625217] [2025-04-29 11:15:38,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:15:38,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:15:38,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-29 11:15:38,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-29 11:15:38,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:15:38,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:15:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:15:38,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:15:38,399 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724625217] [2025-04-29 11:15:38,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724625217] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:15:38,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:15:38,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-29 11:15:38,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927618323] [2025-04-29 11:15:38,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:15:38,404 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:15:38,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:15:38,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:15:38,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:15:38,445 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 21 [2025-04-29 11:15:38,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2025-04-29 11:15:38,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:15:38,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 21 [2025-04-29 11:15:38,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:15:38,482 INFO L116 PetriNetUnfolderBase]: 15/59 cut-off events. [2025-04-29 11:15:38,483 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:15:38,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 59 events. 15/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 189 event pairs, 15 based on Foata normal form. 5/53 useless extension candidates. Maximal degree in co-relation 95. Up to 40 conditions per place. [2025-04-29 11:15:38,485 INFO L140 encePairwiseOnDemand]: 19/21 looper letters, 9 selfloop transitions, 1 changer transitions 0/19 dead transitions. [2025-04-29 11:15:38,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 61 flow [2025-04-29 11:15:38,487 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:15:38,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:15:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2025-04-29 11:15:38,495 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6507936507936508 [2025-04-29 11:15:38,498 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 41 transitions. [2025-04-29 11:15:38,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 61 flow [2025-04-29 11:15:38,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:15:38,504 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 42 flow [2025-04-29 11:15:38,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2025-04-29 11:15:38,507 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2025-04-29 11:15:38,507 INFO L485 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 42 flow [2025-04-29 11:15:38,507 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2025-04-29 11:15:38,508 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:15:38,508 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-29 11:15:38,508 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:15:38,508 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-29 11:15:38,508 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:15:38,508 INFO L85 PathProgramCache]: Analyzing trace with hash -404644678, now seen corresponding path program 1 times [2025-04-29 11:15:38,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:15:38,508 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461016276] [2025-04-29 11:15:38,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:15:38,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:15:38,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-29 11:15:38,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-29 11:15:38,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:15:38,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:15:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:15:38,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:15:38,580 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461016276] [2025-04-29 11:15:38,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461016276] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:15:38,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:15:38,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:15:38,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439862283] [2025-04-29 11:15:38,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:15:38,581 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:15:38,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:15:38,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:15:38,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:15:38,596 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 21 [2025-04-29 11:15:38,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2025-04-29 11:15:38,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:15:38,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 21 [2025-04-29 11:15:38,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:15:38,649 INFO L116 PetriNetUnfolderBase]: 15/60 cut-off events. [2025-04-29 11:15:38,649 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:15:38,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 60 events. 15/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 193 event pairs, 0 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 100. Up to 35 conditions per place. [2025-04-29 11:15:38,649 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 11 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2025-04-29 11:15:38,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 21 transitions, 72 flow [2025-04-29 11:15:38,651 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:15:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-29 11:15:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2025-04-29 11:15:38,652 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2025-04-29 11:15:38,652 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 42 flow. Second operand 4 states and 50 transitions. [2025-04-29 11:15:38,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 21 transitions, 72 flow [2025-04-29 11:15:38,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:15:38,652 INFO L231 Difference]: Finished difference. Result has 25 places, 18 transitions, 43 flow [2025-04-29 11:15:38,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=43, PETRI_PLACES=25, PETRI_TRANSITIONS=18} [2025-04-29 11:15:38,653 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2025-04-29 11:15:38,653 INFO L485 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 43 flow [2025-04-29 11:15:38,653 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2025-04-29 11:15:38,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:15:38,653 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-29 11:15:38,653 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:15:38,653 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-29 11:15:38,654 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:15:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash -404644677, now seen corresponding path program 1 times [2025-04-29 11:15:38,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:15:38,654 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301829535] [2025-04-29 11:15:38,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:15:38,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:15:38,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-29 11:15:38,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-29 11:15:38,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:15:38,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:15:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:15:38,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:15:38,777 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301829535] [2025-04-29 11:15:38,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301829535] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:15:38,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:15:38,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:15:38,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563877351] [2025-04-29 11:15:38,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:15:38,778 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-29 11:15:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:15:38,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-29 11:15:38,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-29 11:15:38,796 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 21 [2025-04-29 11:15:38,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2025-04-29 11:15:38,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:15:38,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 21 [2025-04-29 11:15:38,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:15:38,848 INFO L116 PetriNetUnfolderBase]: 15/54 cut-off events. [2025-04-29 11:15:38,849 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-29 11:15:38,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 54 events. 15/54 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 146 event pairs, 12 based on Foata normal form. 10/62 useless extension candidates. Maximal degree in co-relation 98. Up to 35 conditions per place. [2025-04-29 11:15:38,850 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 10 selfloop transitions, 2 changer transitions 1/19 dead transitions. [2025-04-29 11:15:38,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 71 flow [2025-04-29 11:15:38,851 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-29 11:15:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-29 11:15:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2025-04-29 11:15:38,852 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2025-04-29 11:15:38,852 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 43 flow. Second operand 4 states and 52 transitions. [2025-04-29 11:15:38,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 71 flow [2025-04-29 11:15:38,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:15:38,853 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 38 flow [2025-04-29 11:15:38,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=38, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2025-04-29 11:15:38,855 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2025-04-29 11:15:38,855 INFO L485 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 38 flow [2025-04-29 11:15:38,855 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2025-04-29 11:15:38,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:15:38,856 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:15:38,856 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:15:38,856 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-04-29 11:15:38,856 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:15:38,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1203670802, now seen corresponding path program 1 times [2025-04-29 11:15:38,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:15:38,856 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134328697] [2025-04-29 11:15:38,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:15:38,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:15:38,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-29 11:15:38,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-29 11:15:38,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:15:38,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:15:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:15:38,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:15:38,886 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134328697] [2025-04-29 11:15:38,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134328697] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:15:38,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:15:38,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-29 11:15:38,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726980753] [2025-04-29 11:15:38,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:15:38,887 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:15:38,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:15:38,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:15:38,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:15:38,899 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 21 [2025-04-29 11:15:38,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2025-04-29 11:15:38,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:15:38,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 21 [2025-04-29 11:15:38,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:15:38,918 INFO L116 PetriNetUnfolderBase]: 12/42 cut-off events. [2025-04-29 11:15:38,919 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-29 11:15:38,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 42 events. 12/42 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 12 based on Foata normal form. 4/42 useless extension candidates. Maximal degree in co-relation 83. Up to 33 conditions per place. [2025-04-29 11:15:38,919 INFO L140 encePairwiseOnDemand]: 19/21 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2025-04-29 11:15:38,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 14 transitions, 54 flow [2025-04-29 11:15:38,919 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:15:38,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:15:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2025-04-29 11:15:38,920 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2025-04-29 11:15:38,920 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 38 flow. Second operand 3 states and 40 transitions. [2025-04-29 11:15:38,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 14 transitions, 54 flow [2025-04-29 11:15:38,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 14 transitions, 51 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:15:38,921 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2025-04-29 11:15:38,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2025-04-29 11:15:38,923 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2025-04-29 11:15:38,923 INFO L485 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2025-04-29 11:15:38,923 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2025-04-29 11:15:38,925 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2025-04-29 11:15:38,926 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2025-04-29 11:15:38,926 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2025-04-29 11:15:38,926 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2025-04-29 11:15:38,926 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2025-04-29 11:15:38,926 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2025-04-29 11:15:38,926 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 8 remaining) [2025-04-29 11:15:38,926 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 8 remaining) [2025-04-29 11:15:38,927 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:15:38,927 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-29 11:15:38,932 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:15:38,932 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:15:38,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:15:38 BasicIcfg [2025-04-29 11:15:38,936 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:15:38,937 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:15:38,937 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:15:38,937 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:15:38,939 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:15:38" (3/4) ... [2025-04-29 11:15:38,941 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:15:38,943 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 11:15:38,945 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-04-29 11:15:38,945 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-04-29 11:15:38,945 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:15:38,945 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-29 11:15:38,999 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:15:38,999 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:15:38,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:15:39,000 INFO L158 Benchmark]: Toolchain (without parser) took 1401.42ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 79.5MB in the end (delta: 31.8MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2025-04-29 11:15:39,001 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:15:39,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.13ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 98.0MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:15:39,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.98ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:15:39,002 INFO L158 Benchmark]: Boogie Preprocessor took 38.90ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 95.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:15:39,002 INFO L158 Benchmark]: RCFGBuilder took 233.69ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 78.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:15:39,002 INFO L158 Benchmark]: TraceAbstraction took 842.03ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 85.4MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:15:39,003 INFO L158 Benchmark]: Witness Printer took 62.91ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 79.5MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:15:39,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.13ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 98.0MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.98ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.90ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 95.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 233.69ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 78.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 842.03ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 85.4MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.91ms. Allocated memory is still 142.6MB. Free memory was 84.7MB in the beginning and 79.5MB in the end (delta: 5.2MB). 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: 22]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 32 locations, 30 edges, 8 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:15:39,018 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