./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/28-race_reach_46-escape_racefree.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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:09:09,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:09:09,898 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:09:09,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:09:09,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:09:09,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:09:09,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:09:09,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:09:09,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:09:09,936 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:09:09,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:09:09,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:09:09,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:09:09,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:09:09,953 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:09:09,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:09:09,954 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:09:09,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:09:09,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:09:09,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:09:09,959 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:09:09,960 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:09:09,960 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:09:09,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:09:09,960 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:09:09,961 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:09:09,961 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:09:09,961 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:09:09,962 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:09:09,962 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:09:09,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:09:09,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:09:09,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:09:09,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:09:09,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:09:09,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:09:09,964 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:09:09,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:09:09,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:09:09,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:09:09,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:09:09,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:09:09,966 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2024-11-10 18:09:10,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:09:10,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:09:10,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:09:10,340 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:09:10,341 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:09:10,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2024-11-10 18:09:11,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:09:12,257 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:09:12,258 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2024-11-10 18:09:12,274 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca45b90a3/cd08f8e1f1a34acf8277addc4ed1b40b/FLAG336fa05d3 [2024-11-10 18:09:12,523 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca45b90a3/cd08f8e1f1a34acf8277addc4ed1b40b [2024-11-10 18:09:12,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:09:12,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:09:12,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:09:12,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:09:12,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:09:12,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:09:12" (1/1) ... [2024-11-10 18:09:12,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df262ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:12, skipping insertion in model container [2024-11-10 18:09:12,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:09:12" (1/1) ... [2024-11-10 18:09:12,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:09:12,966 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:09:12,982 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:09:12,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:09:13,019 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:09:13,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:09:13,149 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:09:13,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13 WrapperNode [2024-11-10 18:09:13,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:09:13,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:09:13,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:09:13,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:09:13,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,220 INFO L138 Inliner]: procedures = 171, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 118 [2024-11-10 18:09:13,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:09:13,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:09:13,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:09:13,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:09:13,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,239 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,268 INFO L175 MemorySlicer]: Split 18 memory accesses to 4 slices as follows [2, 6, 5, 5]. 33 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 1, 5, 5]. The 2 writes are split as follows [0, 2, 0, 0]. [2024-11-10 18:09:13,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,282 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,296 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:09:13,298 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:09:13,301 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:09:13,301 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:09:13,302 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (1/1) ... [2024-11-10 18:09:13,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:09:13,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:09:13,347 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) [2024-11-10 18:09:13,351 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 [2024-11-10 18:09:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 18:09:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:09:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 18:09:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 18:09:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 18:09:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 18:09:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:09:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:09:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 18:09:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 18:09:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 18:09:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:09:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:09:13,447 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:09:13,663 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:09:13,666 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:09:13,900 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L708: havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-10 18:09:13,901 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L708-1: SUMMARY for call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset); srcloc: null [2024-11-10 18:09:14,004 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:09:14,004 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:09:14,259 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:09:14,260 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:09:14,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:09:14 BoogieIcfgContainer [2024-11-10 18:09:14,261 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:09:14,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:09:14,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:09:14,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:09:14,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:09:12" (1/3) ... [2024-11-10 18:09:14,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457d640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:09:14, skipping insertion in model container [2024-11-10 18:09:14,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:09:13" (2/3) ... [2024-11-10 18:09:14,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457d640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:09:14, skipping insertion in model container [2024-11-10 18:09:14,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:09:14" (3/3) ... [2024-11-10 18:09:14,275 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2024-11-10 18:09:14,295 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:09:14,296 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-10 18:09:14,296 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:09:14,373 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 18:09:14,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 68 transitions, 143 flow [2024-11-10 18:09:14,463 INFO L124 PetriNetUnfolderBase]: 10/67 cut-off events. [2024-11-10 18:09:14,466 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:09:14,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 67 events. 10/67 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 206 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 61. Up to 3 conditions per place. [2024-11-10 18:09:14,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 68 transitions, 143 flow [2024-11-10 18:09:14,480 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 66 transitions, 138 flow [2024-11-10 18:09:14,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:09:14,504 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;@49b0f8e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:09:14,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-10 18:09:14,545 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:09:14,545 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-11-10 18:09:14,545 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:09:14,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:09:14,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:14,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-10 18:09:14,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:09:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash -320150698, now seen corresponding path program 1 times [2024-11-10 18:09:14,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:09:14,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832051370] [2024-11-10 18:09:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:09:14,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:09:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:09:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:09:15,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:09:15,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832051370] [2024-11-10 18:09:15,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832051370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:09:15,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:09:15,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:09:15,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688000524] [2024-11-10 18:09:15,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:09:15,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:09:15,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:09:15,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:09:15,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:09:15,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 68 [2024-11-10 18:09:15,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 66 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:15,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:09:15,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 68 [2024-11-10 18:09:15,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:09:15,358 INFO L124 PetriNetUnfolderBase]: 96/378 cut-off events. [2024-11-10 18:09:15,359 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:09:15,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 378 events. 96/378 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1866 event pairs, 96 based on Foata normal form. 101/455 useless extension candidates. Maximal degree in co-relation 585. Up to 215 conditions per place. [2024-11-10 18:09:15,370 INFO L140 encePairwiseOnDemand]: 55/68 looper letters, 22 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-11-10 18:09:15,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 54 transitions, 162 flow [2024-11-10 18:09:15,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:09:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:09:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-10 18:09:15,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6274509803921569 [2024-11-10 18:09:15,391 INFO L175 Difference]: Start difference. First operand has 60 places, 66 transitions, 138 flow. Second operand 3 states and 128 transitions. [2024-11-10 18:09:15,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 54 transitions, 162 flow [2024-11-10 18:09:15,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 54 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:09:15,400 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 114 flow [2024-11-10 18:09:15,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-11-10 18:09:15,408 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -2 predicate places. [2024-11-10 18:09:15,409 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 114 flow [2024-11-10 18:09:15,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:15,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:09:15,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:15,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:09:15,411 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-10 18:09:15,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:09:15,412 INFO L85 PathProgramCache]: Analyzing trace with hash -320150697, now seen corresponding path program 1 times [2024-11-10 18:09:15,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:09:15,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502010898] [2024-11-10 18:09:15,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:09:15,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:09:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:09:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:09:15,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:09:15,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502010898] [2024-11-10 18:09:15,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502010898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:09:15,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:09:15,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:09:15,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331643517] [2024-11-10 18:09:15,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:09:15,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:09:15,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:09:15,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:09:15,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:09:15,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 68 [2024-11-10 18:09:15,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:15,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:09:15,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 68 [2024-11-10 18:09:15,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:09:15,844 INFO L124 PetriNetUnfolderBase]: 96/373 cut-off events. [2024-11-10 18:09:15,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:09:15,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 373 events. 96/373 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1823 event pairs, 96 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 585. Up to 215 conditions per place. [2024-11-10 18:09:15,849 INFO L140 encePairwiseOnDemand]: 65/68 looper letters, 22 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2024-11-10 18:09:15,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 53 transitions, 160 flow [2024-11-10 18:09:15,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:09:15,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:09:15,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-11-10 18:09:15,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5784313725490197 [2024-11-10 18:09:15,852 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 114 flow. Second operand 3 states and 118 transitions. [2024-11-10 18:09:15,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 53 transitions, 160 flow [2024-11-10 18:09:15,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 53 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:09:15,854 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 112 flow [2024-11-10 18:09:15,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-11-10 18:09:15,855 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2024-11-10 18:09:15,856 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 112 flow [2024-11-10 18:09:15,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:15,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:09:15,856 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:15,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:09:15,857 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-10 18:09:15,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:09:15,858 INFO L85 PathProgramCache]: Analyzing trace with hash -176662526, now seen corresponding path program 1 times [2024-11-10 18:09:15,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:09:15,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675306456] [2024-11-10 18:09:15,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:09:15,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:09:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:09:16,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:09:16,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:09:16,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675306456] [2024-11-10 18:09:16,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675306456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:09:16,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:09:16,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:09:16,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147226928] [2024-11-10 18:09:16,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:09:16,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:09:16,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:09:16,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:09:16,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:09:16,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 68 [2024-11-10 18:09:16,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:16,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:09:16,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 68 [2024-11-10 18:09:16,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:09:16,257 INFO L124 PetriNetUnfolderBase]: 96/361 cut-off events. [2024-11-10 18:09:16,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:09:16,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 361 events. 96/361 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1747 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 573. Up to 205 conditions per place. [2024-11-10 18:09:16,265 INFO L140 encePairwiseOnDemand]: 60/68 looper letters, 28 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2024-11-10 18:09:16,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 184 flow [2024-11-10 18:09:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:09:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:09:16,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 171 transitions. [2024-11-10 18:09:16,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5029411764705882 [2024-11-10 18:09:16,268 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 112 flow. Second operand 5 states and 171 transitions. [2024-11-10 18:09:16,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 184 flow [2024-11-10 18:09:16,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:09:16,273 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 108 flow [2024-11-10 18:09:16,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=55, PETRI_TRANSITIONS=49} [2024-11-10 18:09:16,274 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-10 18:09:16,275 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 108 flow [2024-11-10 18:09:16,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:16,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:09:16,276 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:16,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:09:16,276 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-10 18:09:16,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:09:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -176662525, now seen corresponding path program 1 times [2024-11-10 18:09:16,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:09:16,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722603827] [2024-11-10 18:09:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:09:16,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:09:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:09:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:09:16,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:09:16,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722603827] [2024-11-10 18:09:16,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722603827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:09:16,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:09:16,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:09:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115961638] [2024-11-10 18:09:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:09:16,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:09:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:09:16,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:09:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:09:16,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 68 [2024-11-10 18:09:16,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:16,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:09:16,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 68 [2024-11-10 18:09:16,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:09:16,707 INFO L124 PetriNetUnfolderBase]: 96/339 cut-off events. [2024-11-10 18:09:16,707 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 18:09:16,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 339 events. 96/339 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1525 event pairs, 66 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 393. Up to 205 conditions per place. [2024-11-10 18:09:16,710 INFO L140 encePairwiseOnDemand]: 60/68 looper letters, 28 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2024-11-10 18:09:16,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 180 flow [2024-11-10 18:09:16,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:09:16,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:09:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 198 transitions. [2024-11-10 18:09:16,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2024-11-10 18:09:16,713 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 108 flow. Second operand 6 states and 198 transitions. [2024-11-10 18:09:16,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 180 flow [2024-11-10 18:09:16,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 172 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 18:09:16,715 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 100 flow [2024-11-10 18:09:16,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-11-10 18:09:16,719 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -8 predicate places. [2024-11-10 18:09:16,720 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 100 flow [2024-11-10 18:09:16,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:16,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:09:16,720 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:16,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:09:16,721 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-10 18:09:16,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:09:16,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1513368570, now seen corresponding path program 1 times [2024-11-10 18:09:16,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:09:16,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792023968] [2024-11-10 18:09:16,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:09:16,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:09:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:09:16,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:09:16,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:09:16,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792023968] [2024-11-10 18:09:16,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792023968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:09:16,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:09:16,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:09:16,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561599125] [2024-11-10 18:09:16,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:09:16,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:09:16,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:09:16,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:09:16,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:09:16,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 68 [2024-11-10 18:09:16,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:16,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:09:16,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 68 [2024-11-10 18:09:16,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:09:17,025 INFO L124 PetriNetUnfolderBase]: 110/365 cut-off events. [2024-11-10 18:09:17,025 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 18:09:17,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 365 events. 110/365 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1627 event pairs, 38 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 507. Up to 137 conditions per place. [2024-11-10 18:09:17,027 INFO L140 encePairwiseOnDemand]: 62/68 looper letters, 39 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2024-11-10 18:09:17,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 66 transitions, 236 flow [2024-11-10 18:09:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:09:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:09:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 203 transitions. [2024-11-10 18:09:17,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5970588235294118 [2024-11-10 18:09:17,031 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 100 flow. Second operand 5 states and 203 transitions. [2024-11-10 18:09:17,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 66 transitions, 236 flow [2024-11-10 18:09:17,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 66 transitions, 227 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 18:09:17,037 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 137 flow [2024-11-10 18:09:17,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=137, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-11-10 18:09:17,039 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-11-10 18:09:17,039 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 137 flow [2024-11-10 18:09:17,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:17,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:09:17,039 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:17,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:09:17,040 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-10 18:09:17,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:09:17,041 INFO L85 PathProgramCache]: Analyzing trace with hash 521001268, now seen corresponding path program 1 times [2024-11-10 18:09:17,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:09:17,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265254198] [2024-11-10 18:09:17,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:09:17,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:09:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:09:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:09:17,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:09:17,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265254198] [2024-11-10 18:09:17,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265254198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:09:17,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:09:17,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:09:17,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635711803] [2024-11-10 18:09:17,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:09:17,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:09:17,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:09:17,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:09:17,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:09:17,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 68 [2024-11-10 18:09:17,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:17,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:09:17,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 68 [2024-11-10 18:09:17,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:09:17,281 INFO L124 PetriNetUnfolderBase]: 26/154 cut-off events. [2024-11-10 18:09:17,281 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-10 18:09:17,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 154 events. 26/154 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 355 event pairs, 4 based on Foata normal form. 14/168 useless extension candidates. Maximal degree in co-relation 234. Up to 69 conditions per place. [2024-11-10 18:09:17,282 INFO L140 encePairwiseOnDemand]: 63/68 looper letters, 24 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2024-11-10 18:09:17,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 51 transitions, 195 flow [2024-11-10 18:09:17,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:09:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:09:17,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-11-10 18:09:17,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5772058823529411 [2024-11-10 18:09:17,284 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 137 flow. Second operand 4 states and 157 transitions. [2024-11-10 18:09:17,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 51 transitions, 195 flow [2024-11-10 18:09:17,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 51 transitions, 191 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-10 18:09:17,287 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 137 flow [2024-11-10 18:09:17,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2024-11-10 18:09:17,288 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -2 predicate places. [2024-11-10 18:09:17,288 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 137 flow [2024-11-10 18:09:17,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:17,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:09:17,289 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:17,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:09:17,289 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-10 18:09:17,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:09:17,290 INFO L85 PathProgramCache]: Analyzing trace with hash -384997809, now seen corresponding path program 1 times [2024-11-10 18:09:17,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:09:17,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908073117] [2024-11-10 18:09:17,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:09:17,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:09:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:09:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:09:17,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:09:17,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908073117] [2024-11-10 18:09:17,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908073117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:09:17,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:09:17,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 18:09:17,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156862542] [2024-11-10 18:09:17,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:09:17,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:09:17,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:09:17,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:09:17,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:09:18,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 68 [2024-11-10 18:09:18,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 137 flow. Second operand has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:18,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:09:18,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 68 [2024-11-10 18:09:18,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:09:18,266 INFO L124 PetriNetUnfolderBase]: 27/147 cut-off events. [2024-11-10 18:09:18,267 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-10 18:09:18,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 147 events. 27/147 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 305 event pairs, 4 based on Foata normal form. 2/149 useless extension candidates. Maximal degree in co-relation 192. Up to 31 conditions per place. [2024-11-10 18:09:18,270 INFO L140 encePairwiseOnDemand]: 57/68 looper letters, 30 selfloop transitions, 15 changer transitions 0/63 dead transitions. [2024-11-10 18:09:18,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 63 transitions, 273 flow [2024-11-10 18:09:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:09:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 18:09:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 418 transitions. [2024-11-10 18:09:18,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5122549019607843 [2024-11-10 18:09:18,273 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 137 flow. Second operand 12 states and 418 transitions. [2024-11-10 18:09:18,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 63 transitions, 273 flow [2024-11-10 18:09:18,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 63 transitions, 260 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:09:18,275 INFO L231 Difference]: Finished difference. Result has 63 places, 48 transitions, 164 flow [2024-11-10 18:09:18,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=164, PETRI_PLACES=63, PETRI_TRANSITIONS=48} [2024-11-10 18:09:18,277 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 3 predicate places. [2024-11-10 18:09:18,277 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 48 transitions, 164 flow [2024-11-10 18:09:18,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:18,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:09:18,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:18,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:09:18,278 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2024-11-10 18:09:18,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:09:18,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1121386014, now seen corresponding path program 1 times [2024-11-10 18:09:18,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:09:18,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771029676] [2024-11-10 18:09:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:09:18,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:09:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:09:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:09:18,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:09:18,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771029676] [2024-11-10 18:09:18,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771029676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:09:18,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:09:18,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:09:18,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653938651] [2024-11-10 18:09:18,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:09:18,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:09:18,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:09:18,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:09:18,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:09:18,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 68 [2024-11-10 18:09:18,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 48 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:18,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:09:18,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 68 [2024-11-10 18:09:18,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:09:18,614 INFO L124 PetriNetUnfolderBase]: 25/140 cut-off events. [2024-11-10 18:09:18,615 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-10 18:09:18,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 140 events. 25/140 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 302 event pairs, 21 based on Foata normal form. 1/138 useless extension candidates. Maximal degree in co-relation 75. Up to 86 conditions per place. [2024-11-10 18:09:18,616 INFO L140 encePairwiseOnDemand]: 65/68 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2024-11-10 18:09:18,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 47 transitions, 218 flow [2024-11-10 18:09:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:09:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:09:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-10 18:09:18,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5441176470588235 [2024-11-10 18:09:18,618 INFO L175 Difference]: Start difference. First operand has 63 places, 48 transitions, 164 flow. Second operand 4 states and 148 transitions. [2024-11-10 18:09:18,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 47 transitions, 218 flow [2024-11-10 18:09:18,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 47 transitions, 185 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-11-10 18:09:18,620 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-11-10 18:09:18,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-11-10 18:09:18,626 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-10 18:09:18,626 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-11-10 18:09:18,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:09:18,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 21 remaining) [2024-11-10 18:09:18,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 21 remaining) [2024-11-10 18:09:18,635 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (18 of 21 remaining) [2024-11-10 18:09:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (17 of 21 remaining) [2024-11-10 18:09:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 21 remaining) [2024-11-10 18:09:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 21 remaining) [2024-11-10 18:09:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 21 remaining) [2024-11-10 18:09:18,636 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 21 remaining) [2024-11-10 18:09:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 21 remaining) [2024-11-10 18:09:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 21 remaining) [2024-11-10 18:09:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 21 remaining) [2024-11-10 18:09:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 21 remaining) [2024-11-10 18:09:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 21 remaining) [2024-11-10 18:09:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 21 remaining) [2024-11-10 18:09:18,637 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 21 remaining) [2024-11-10 18:09:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 21 remaining) [2024-11-10 18:09:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 21 remaining) [2024-11-10 18:09:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 21 remaining) [2024-11-10 18:09:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 21 remaining) [2024-11-10 18:09:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 21 remaining) [2024-11-10 18:09:18,638 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 21 remaining) [2024-11-10 18:09:18,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:09:18,639 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:09:18,656 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:09:18,656 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:09:18,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:09:18 BasicIcfg [2024-11-10 18:09:18,669 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:09:18,670 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:09:18,670 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:09:18,670 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:09:18,671 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:09:14" (3/4) ... [2024-11-10 18:09:18,673 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:09:18,677 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 18:09:18,685 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2024-11-10 18:09:18,686 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-10 18:09:18,686 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-10 18:09:18,686 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-10 18:09:18,686 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 18:09:18,687 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 18:09:18,795 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:09:18,796 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:09:18,796 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:09:18,797 INFO L158 Benchmark]: Toolchain (without parser) took 6269.05ms. Allocated memory was 167.8MB in the beginning and 247.5MB in the end (delta: 79.7MB). Free memory was 138.7MB in the beginning and 167.2MB in the end (delta: -28.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2024-11-10 18:09:18,797 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 167.8MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:09:18,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.52ms. Allocated memory is still 167.8MB. Free memory was 137.9MB in the beginning and 114.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 18:09:18,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.75ms. Allocated memory is still 167.8MB. Free memory was 114.8MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:09:18,798 INFO L158 Benchmark]: Boogie Preprocessor took 76.02ms. Allocated memory is still 167.8MB. Free memory was 112.8MB in the beginning and 109.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:09:18,798 INFO L158 Benchmark]: IcfgBuilder took 963.11ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 87.9MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-10 18:09:18,799 INFO L158 Benchmark]: TraceAbstraction took 4405.93ms. Allocated memory was 167.8MB in the beginning and 247.5MB in the end (delta: 79.7MB). Free memory was 86.7MB in the beginning and 172.4MB in the end (delta: -85.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:09:18,799 INFO L158 Benchmark]: Witness Printer took 126.69ms. Allocated memory is still 247.5MB. Free memory was 172.4MB in the beginning and 167.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 18:09:18,800 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 167.8MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.52ms. Allocated memory is still 167.8MB. Free memory was 137.9MB in the beginning and 114.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.75ms. Allocated memory is still 167.8MB. Free memory was 114.8MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.02ms. Allocated memory is still 167.8MB. Free memory was 112.8MB in the beginning and 109.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 963.11ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 87.9MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4405.93ms. Allocated memory was 167.8MB in the beginning and 247.5MB in the end (delta: 79.7MB). Free memory was 86.7MB in the beginning and 172.4MB in the end (delta: -85.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 126.69ms. Allocated memory is still 247.5MB. Free memory was 172.4MB in the beginning and 167.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. 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: 706]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 690]: 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 - 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, 92 locations, 21 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: 4.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 488 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 400 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 910 IncrementalHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 1 mSDtfsCounter, 910 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=7, InterpolantAutomatonStates: 42, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 18:09:18,839 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