./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 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 ../sv-benchmarks/c/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-?-798a7b3-m [2025-03-04 10:00:14,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:00:14,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 10:00:14,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:00:14,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:00:14,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:00:14,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:00:14,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:00:14,737 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:00:14,737 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:00:14,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:00:14,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:00:14,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:00:14,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:00:14,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:00:14,738 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:00:14,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:00:14,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:00:14,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:00:14,739 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 [2025-03-04 10:00:14,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:00:14,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:00:14,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:00:14,937 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:00:14,937 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:00:14,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-03-04 10:00:16,103 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ab1d35fd/14b006a19a9d441fa0c477ff86f81eda/FLAGb69acd8e8 [2025-03-04 10:00:16,392 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:00:16,393 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-03-04 10:00:16,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ab1d35fd/14b006a19a9d441fa0c477ff86f81eda/FLAGb69acd8e8 [2025-03-04 10:00:16,680 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ab1d35fd/14b006a19a9d441fa0c477ff86f81eda [2025-03-04 10:00:16,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:00:16,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:00:16,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:00:16,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:00:16,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:00:16,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:00:16" (1/1) ... [2025-03-04 10:00:16,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd49db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:16, skipping insertion in model container [2025-03-04 10:00:16,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:00:16" (1/1) ... [2025-03-04 10:00:16,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:00:16,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:00:16,959 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:00:17,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:00:17,047 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:00:17,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17 WrapperNode [2025-03-04 10:00:17,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:00:17,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:00:17,049 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:00:17,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:00:17,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,088 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-03-04 10:00:17,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:00:17,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:00:17,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:00:17,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:00:17,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,118 INFO L175 MemorySlicer]: Split 16 memory accesses to 4 slices as follows [3, 3, 5, 5]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [1, 1, 5, 5]. The 2 writes are split as follows [1, 1, 0, 0]. [2025-03-04 10:00:17,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,125 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:00:17,129 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:00:17,129 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:00:17,129 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:00:17,129 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (1/1) ... [2025-03-04 10:00:17,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:00:17,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:00:17,151 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) [2025-03-04 10:00:17,156 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 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 10:00:17,169 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 10:00:17,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:00:17,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:00:17,170 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 10:00:17,270 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:00:17,271 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:00:17,415 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 10:00:17,415 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:00:17,504 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:00:17,505 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:00:17,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:00:17 BoogieIcfgContainer [2025-03-04 10:00:17,506 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:00:17,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:00:17,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:00:17,511 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:00:17,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:00:16" (1/3) ... [2025-03-04 10:00:17,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bbc708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:00:17, skipping insertion in model container [2025-03-04 10:00:17,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:00:17" (2/3) ... [2025-03-04 10:00:17,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bbc708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:00:17, skipping insertion in model container [2025-03-04 10:00:17,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:00:17" (3/3) ... [2025-03-04 10:00:17,515 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2025-03-04 10:00:17,527 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:00:17,528 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_10-ptrmunge_nr.i that has 2 procedures, 30 locations, 1 initial locations, 0 loop locations, and 9 error locations. [2025-03-04 10:00:17,528 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 10:00:17,564 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 10:00:17,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 65 flow [2025-03-04 10:00:17,608 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-03-04 10:00:17,609 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 10:00:17,610 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. [2025-03-04 10:00:17,612 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 65 flow [2025-03-04 10:00:17,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 60 flow [2025-03-04 10:00:17,621 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:00:17,629 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32d5a4cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:00:17,629 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-04 10:00:17,640 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 10:00:17,640 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-03-04 10:00:17,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 10:00:17,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:00:17,640 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 10:00:17,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-03-04 10:00:17,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:00:17,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1290211677, now seen corresponding path program 1 times [2025-03-04 10:00:17,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:00:17,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628833895] [2025-03-04 10:00:17,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:00:17,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:00:17,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 10:00:17,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 10:00:17,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:00:17,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:00:17,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:00:17,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:00:17,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628833895] [2025-03-04 10:00:17,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628833895] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:00:17,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:00:17,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:00:17,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010676013] [2025-03-04 10:00:17,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:00:17,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:00:17,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:00:17,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:00:17,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:00:17,982 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2025-03-04 10:00:17,985 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) [2025-03-04 10:00:17,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:00:17,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2025-03-04 10:00:17,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:00:18,068 INFO L124 PetriNetUnfolderBase]: 25/101 cut-off events. [2025-03-04 10:00:18,069 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 10:00:18,070 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 365 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. [2025-03-04 10:00:18,071 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2025-03-04 10:00:18,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 102 flow [2025-03-04 10:00:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:00:18,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 10:00:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-03-04 10:00:18,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2025-03-04 10:00:18,080 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 4 states and 72 transitions. [2025-03-04 10:00:18,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 102 flow [2025-03-04 10:00:18,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 10:00:18,085 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 58 flow [2025-03-04 10:00:18,087 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} [2025-03-04 10:00:18,089 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2025-03-04 10:00:18,089 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 58 flow [2025-03-04 10:00:18,089 INFO L472 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) [2025-03-04 10:00:18,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:00:18,089 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 10:00:18,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 10:00:18,089 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-03-04 10:00:18,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:00:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1289927772, now seen corresponding path program 1 times [2025-03-04 10:00:18,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:00:18,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40732042] [2025-03-04 10:00:18,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:00:18,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:00:18,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 10:00:18,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 10:00:18,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:00:18,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:00:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:00:18,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:00:18,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40732042] [2025-03-04 10:00:18,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40732042] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:00:18,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:00:18,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:00:18,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025517536] [2025-03-04 10:00:18,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:00:18,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:00:18,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:00:18,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:00:18,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:00:18,217 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2025-03-04 10:00:18,218 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) [2025-03-04 10:00:18,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:00:18,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2025-03-04 10:00:18,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:00:18,278 INFO L124 PetriNetUnfolderBase]: 25/97 cut-off events. [2025-03-04 10:00:18,278 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-04 10:00:18,278 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 342 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. [2025-03-04 10:00:18,279 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2025-03-04 10:00:18,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 104 flow [2025-03-04 10:00:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:00:18,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 10:00:18,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-03-04 10:00:18,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2025-03-04 10:00:18,283 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 58 flow. Second operand 4 states and 72 transitions. [2025-03-04 10:00:18,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 104 flow [2025-03-04 10:00:18,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 10:00:18,284 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 54 flow [2025-03-04 10:00:18,284 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} [2025-03-04 10:00:18,285 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2025-03-04 10:00:18,285 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 54 flow [2025-03-04 10:00:18,285 INFO L472 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) [2025-03-04 10:00:18,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:00:18,285 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 10:00:18,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 10:00:18,285 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-03-04 10:00:18,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:00:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1289927773, now seen corresponding path program 1 times [2025-03-04 10:00:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:00:18,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323621513] [2025-03-04 10:00:18,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:00:18,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:00:18,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 10:00:18,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 10:00:18,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:00:18,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:00:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:00:18,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:00:18,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323621513] [2025-03-04 10:00:18,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323621513] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:00:18,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:00:18,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:00:18,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338904825] [2025-03-04 10:00:18,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:00:18,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:00:18,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:00:18,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:00:18,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:00:18,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2025-03-04 10:00:18,425 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) [2025-03-04 10:00:18,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:00:18,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2025-03-04 10:00:18,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:00:18,481 INFO L124 PetriNetUnfolderBase]: 25/81 cut-off events. [2025-03-04 10:00:18,482 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-04 10:00:18,482 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 234 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. [2025-03-04 10:00:18,483 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2025-03-04 10:00:18,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 96 flow [2025-03-04 10:00:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:00:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 10:00:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-03-04 10:00:18,485 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2025-03-04 10:00:18,485 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 54 flow. Second operand 4 states and 72 transitions. [2025-03-04 10:00:18,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 96 flow [2025-03-04 10:00:18,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 10:00:18,486 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 50 flow [2025-03-04 10:00:18,487 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} [2025-03-04 10:00:18,487 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2025-03-04 10:00:18,487 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 50 flow [2025-03-04 10:00:18,487 INFO L472 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) [2025-03-04 10:00:18,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:00:18,488 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 10:00:18,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 10:00:18,488 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-03-04 10:00:18,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:00:18,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1290211678, now seen corresponding path program 1 times [2025-03-04 10:00:18,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:00:18,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135850693] [2025-03-04 10:00:18,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:00:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:00:18,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 10:00:18,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 10:00:18,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:00:18,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:00:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:00:18,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:00:18,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135850693] [2025-03-04 10:00:18,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135850693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:00:18,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:00:18,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:00:18,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954052203] [2025-03-04 10:00:18,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:00:18,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:00:18,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:00:18,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:00:18,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:00:18,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2025-03-04 10:00:18,600 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) [2025-03-04 10:00:18,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:00:18,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2025-03-04 10:00:18,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:00:18,658 INFO L124 PetriNetUnfolderBase]: 25/77 cut-off events. [2025-03-04 10:00:18,658 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-04 10:00:18,658 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 204 event pairs, 11 based on Foata normal form. 6/81 useless extension candidates. Maximal degree in co-relation 86. Up to 44 conditions per place. [2025-03-04 10:00:18,658 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2025-03-04 10:00:18,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 96 flow [2025-03-04 10:00:18,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:00:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 10:00:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-03-04 10:00:18,660 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2025-03-04 10:00:18,660 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 50 flow. Second operand 4 states and 72 transitions. [2025-03-04 10:00:18,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 96 flow [2025-03-04 10:00:18,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 10:00:18,662 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 46 flow [2025-03-04 10:00:18,662 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} [2025-03-04 10:00:18,662 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2025-03-04 10:00:18,662 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 46 flow [2025-03-04 10:00:18,663 INFO L472 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) [2025-03-04 10:00:18,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:00:18,663 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:00:18,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 10:00:18,663 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2025-03-04 10:00:18,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:00:18,665 INFO L85 PathProgramCache]: Analyzing trace with hash 738448904, now seen corresponding path program 1 times [2025-03-04 10:00:18,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:00:18,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891704731] [2025-03-04 10:00:18,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:00:18,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:00:18,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 10:00:18,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 10:00:18,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:00:18,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:00:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:00:18,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:00:18,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891704731] [2025-03-04 10:00:18,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891704731] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:00:18,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:00:18,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 10:00:18,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99448421] [2025-03-04 10:00:18,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:00:18,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:00:18,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:00:18,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:00:18,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:00:18,748 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2025-03-04 10:00:18,748 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) [2025-03-04 10:00:18,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:00:18,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2025-03-04 10:00:18,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:00:18,773 INFO L124 PetriNetUnfolderBase]: 25/76 cut-off events. [2025-03-04 10:00:18,773 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-04 10:00:18,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 76 events. 25/76 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 207 event pairs, 25 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 70. Up to 63 conditions per place. [2025-03-04 10:00:18,775 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2025-03-04 10:00:18,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 70 flow [2025-03-04 10:00:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:00:18,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 10:00:18,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2025-03-04 10:00:18,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2025-03-04 10:00:18,777 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 46 flow. Second operand 3 states and 56 transitions. [2025-03-04 10:00:18,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 70 flow [2025-03-04 10:00:18,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 10:00:18,777 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2025-03-04 10:00:18,777 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} [2025-03-04 10:00:18,778 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2025-03-04 10:00:18,778 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2025-03-04 10:00:18,778 INFO L472 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) [2025-03-04 10:00:18,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2025-03-04 10:00:18,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2025-03-04 10:00:18,781 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2025-03-04 10:00:18,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2025-03-04 10:00:18,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (9 of 14 remaining) [2025-03-04 10:00:18,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2025-03-04 10:00:18,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2025-03-04 10:00:18,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2025-03-04 10:00:18,782 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2025-03-04 10:00:18,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2025-03-04 10:00:18,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2025-03-04 10:00:18,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2025-03-04 10:00:18,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2025-03-04 10:00:18,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2025-03-04 10:00:18,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 10:00:18,784 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-04 10:00:18,787 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 10:00:18,788 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 10:00:18,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 10:00:18 BasicIcfg [2025-03-04 10:00:18,791 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 10:00:18,792 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 10:00:18,792 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 10:00:18,792 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 10:00:18,793 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:00:17" (3/4) ... [2025-03-04 10:00:18,794 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 10:00:18,795 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-04 10:00:18,798 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-03-04 10:00:18,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-04 10:00:18,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 10:00:18,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 10:00:18,799 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 10:00:18,847 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 10:00:18,847 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 10:00:18,847 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 10:00:18,848 INFO L158 Benchmark]: Toolchain (without parser) took 2163.86ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 113.4MB in the end (delta: 9.4MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2025-03-04 10:00:18,848 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:00:18,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.02ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 95.8MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 10:00:18,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.86ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 93.1MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:00:18,850 INFO L158 Benchmark]: Boogie Preprocessor took 37.34ms. Allocated memory is still 167.8MB. Free memory was 93.1MB in the beginning and 92.2MB in the end (delta: 950.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:00:18,850 INFO L158 Benchmark]: IcfgBuilder took 377.75ms. Allocated memory is still 167.8MB. Free memory was 92.2MB in the beginning and 66.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 10:00:18,851 INFO L158 Benchmark]: TraceAbstraction took 1283.33ms. Allocated memory is still 167.8MB. Free memory was 66.0MB in the beginning and 118.8MB in the end (delta: -52.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:00:18,852 INFO L158 Benchmark]: Witness Printer took 55.02ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 113.4MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:00:18,852 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.02ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 95.8MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.86ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 93.1MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.34ms. Allocated memory is still 167.8MB. Free memory was 93.1MB in the beginning and 92.2MB in the end (delta: 950.1kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 377.75ms. Allocated memory is still 167.8MB. Free memory was 92.2MB in the beginning and 66.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1283.33ms. Allocated memory is still 167.8MB. Free memory was 66.0MB in the beginning and 118.8MB in the end (delta: -52.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.02ms. Allocated memory is still 167.8MB. Free memory was 118.8MB in the beginning and 113.4MB in the end (delta: 5.4MB). 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, 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: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.3s 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! [2025-03-04 10:00:18,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE