./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.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 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:48:44,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:48:44,919 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:48:44,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:48:44,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:48:44,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:48:44,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:48:44,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:48:44,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:48:44,952 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:48:44,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:48:44,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:48:44,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:48:44,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:48:44,954 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:48:44,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:48:44,955 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:48:44,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:48:44,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:48:44,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:48:44,955 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:48:44,958 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:48:44,958 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:48:44,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:48:44,959 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:48:44,959 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:48:44,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:48:44,959 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:48:44,959 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:48:44,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:48:44,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:48:44,960 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:48:44,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:48:44,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:48:44,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:48:44,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:48:44,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:48:44,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:48:44,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:48:44,962 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:48:44,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:48:44,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:48:44,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2024-10-13 12:48:45,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:48:45,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:48:45,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:48:45,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:48:45,180 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:48:45,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-10-13 12:48:46,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:48:46,602 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:48:46,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-10-13 12:48:46,619 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c817c209a/c2b88e377b4f43f582661953f38c6909/FLAGc895ac187 [2024-10-13 12:48:46,629 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c817c209a/c2b88e377b4f43f582661953f38c6909 [2024-10-13 12:48:46,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:48:46,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:48:46,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:48:46,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:48:46,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:48:46,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:48:46" (1/1) ... [2024-10-13 12:48:46,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5950e3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:46, skipping insertion in model container [2024-10-13 12:48:46,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:48:46" (1/1) ... [2024-10-13 12:48:46,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:48:47,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:48:47,012 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:48:47,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:48:47,103 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:48:47,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47 WrapperNode [2024-10-13 12:48:47,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:48:47,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:48:47,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:48:47,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:48:47,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,151 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-10-13 12:48:47,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:48:47,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:48:47,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:48:47,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:48:47,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,181 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-10-13 12:48:47,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:48:47,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:48:47,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:48:47,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:48:47,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (1/1) ... [2024-10-13 12:48:47,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:48:47,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:48:47,225 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) [2024-10-13 12:48:47,227 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 [2024-10-13 12:48:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 12:48:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 12:48:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 12:48:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 12:48:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 12:48:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 12:48:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 12:48:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 12:48:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 12:48:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:48:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:48:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 12:48:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 12:48:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:48:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:48:47,265 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:48:47,393 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:48:47,395 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:48:47,563 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:48:47,563 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:48:47,728 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:48:47,729 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-13 12:48:47,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:47 BoogieIcfgContainer [2024-10-13 12:48:47,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:48:47,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:48:47,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:48:47,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:48:47,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:48:46" (1/3) ... [2024-10-13 12:48:47,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb711a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:48:47, skipping insertion in model container [2024-10-13 12:48:47,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:48:47" (2/3) ... [2024-10-13 12:48:47,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb711a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:48:47, skipping insertion in model container [2024-10-13 12:48:47,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:47" (3/3) ... [2024-10-13 12:48:47,737 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2024-10-13 12:48:47,752 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:48:47,752 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 12:48:47,752 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:48:47,789 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 12:48:47,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 100 flow [2024-10-13 12:48:47,848 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-10-13 12:48:47,849 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 12:48:47,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2024-10-13 12:48:47,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 100 flow [2024-10-13 12:48:47,855 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 92 flow [2024-10-13 12:48:47,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:48:47,870 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;@55dfb31c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:48:47,871 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-13 12:48:47,884 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:48:47,884 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2024-10-13 12:48:47,884 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 12:48:47,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:47,885 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:48:47,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:47,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:47,890 INFO L85 PathProgramCache]: Analyzing trace with hash 2026965791, now seen corresponding path program 1 times [2024-10-13 12:48:47,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:47,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004911478] [2024-10-13 12:48:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:47,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:48,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:48,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:48,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004911478] [2024-10-13 12:48:48,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004911478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:48:48,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:48:48,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:48:48,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741789117] [2024-10-13 12:48:48,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:48:48,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:48:48,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:48,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:48:48,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:48:48,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-10-13 12:48:48,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:48:48,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:48,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-10-13 12:48:48,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:48,319 INFO L124 PetriNetUnfolderBase]: 441/787 cut-off events. [2024-10-13 12:48:48,319 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-13 12:48:48,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 787 events. 441/787 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3703 event pairs, 173 based on Foata normal form. 20/778 useless extension candidates. Maximal degree in co-relation 1442. Up to 419 conditions per place. [2024-10-13 12:48:48,325 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 39 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-10-13 12:48:48,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 205 flow [2024-10-13 12:48:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:48:48,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:48:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-10-13 12:48:48,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-10-13 12:48:48,334 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 92 flow. Second operand 3 states and 89 transitions. [2024-10-13 12:48:48,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 205 flow [2024-10-13 12:48:48,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:48:48,339 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 90 flow [2024-10-13 12:48:48,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2024-10-13 12:48:48,342 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-10-13 12:48:48,342 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 90 flow [2024-10-13 12:48:48,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:48:48,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:48,343 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] [2024-10-13 12:48:48,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:48:48,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:48,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:48,344 INFO L85 PathProgramCache]: Analyzing trace with hash 397925471, now seen corresponding path program 1 times [2024-10-13 12:48:48,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:48,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018966304] [2024-10-13 12:48:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:48,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:48,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:48,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018966304] [2024-10-13 12:48:48,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018966304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:48:48,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:48:48,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:48:48,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768016431] [2024-10-13 12:48:48,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:48:48,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:48:48,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:48,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:48:48,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:48:48,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-10-13 12:48:48,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-10-13 12:48:48,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:48,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-10-13 12:48:48,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:48,615 INFO L124 PetriNetUnfolderBase]: 742/1327 cut-off events. [2024-10-13 12:48:48,615 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-10-13 12:48:48,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 1327 events. 742/1327 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6781 event pairs, 300 based on Foata normal form. 29/1324 useless extension candidates. Maximal degree in co-relation 964. Up to 697 conditions per place. [2024-10-13 12:48:48,622 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 40 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2024-10-13 12:48:48,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 219 flow [2024-10-13 12:48:48,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:48:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:48:48,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-10-13 12:48:48,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-13 12:48:48,624 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 90 flow. Second operand 3 states and 86 transitions. [2024-10-13 12:48:48,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 219 flow [2024-10-13 12:48:48,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:48:48,625 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 100 flow [2024-10-13 12:48:48,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2024-10-13 12:48:48,629 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2024-10-13 12:48:48,630 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 100 flow [2024-10-13 12:48:48,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-10-13 12:48:48,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:48,630 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] [2024-10-13 12:48:48,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:48:48,630 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:48,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:48,631 INFO L85 PathProgramCache]: Analyzing trace with hash 9820469, now seen corresponding path program 1 times [2024-10-13 12:48:48,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:48,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696004374] [2024-10-13 12:48:48,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:48,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:48,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:48,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:48,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696004374] [2024-10-13 12:48:48,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696004374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:48:48,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:48:48,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:48:48,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069622581] [2024-10-13 12:48:48,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:48:48,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:48:48,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:48,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:48:48,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:48:48,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-10-13 12:48:48,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-10-13 12:48:48,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:48,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-10-13 12:48:48,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:48,885 INFO L124 PetriNetUnfolderBase]: 428/900 cut-off events. [2024-10-13 12:48:48,885 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-10-13 12:48:48,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 900 events. 428/900 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4334 event pairs, 182 based on Foata normal form. 64/958 useless extension candidates. Maximal degree in co-relation 629. Up to 373 conditions per place. [2024-10-13 12:48:48,889 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2024-10-13 12:48:48,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 220 flow [2024-10-13 12:48:48,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:48:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:48:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-10-13 12:48:48,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-10-13 12:48:48,892 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 100 flow. Second operand 3 states and 83 transitions. [2024-10-13 12:48:48,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 220 flow [2024-10-13 12:48:48,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:48:48,895 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 114 flow [2024-10-13 12:48:48,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2024-10-13 12:48:48,896 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-10-13 12:48:48,896 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 114 flow [2024-10-13 12:48:48,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-10-13 12:48:48,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:48,896 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] [2024-10-13 12:48:48,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:48:48,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:48,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:48,897 INFO L85 PathProgramCache]: Analyzing trace with hash -308153453, now seen corresponding path program 2 times [2024-10-13 12:48:48,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:48,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745176403] [2024-10-13 12:48:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:48,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:48,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:48,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:48,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745176403] [2024-10-13 12:48:48,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745176403] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:48:48,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801233394] [2024-10-13 12:48:48,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:48:48,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:48,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:48:48,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:48:48,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 12:48:49,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 12:48:49,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:48:49,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 12:48:49,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:48:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 12:48:49,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:48:49,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801233394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:48:49,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 12:48:49,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-10-13 12:48:49,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758714731] [2024-10-13 12:48:49,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:48:49,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:48:49,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:49,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:48:49,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:48:49,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-10-13 12:48:49,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-10-13 12:48:49,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:49,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-10-13 12:48:49,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:49,202 INFO L124 PetriNetUnfolderBase]: 465/947 cut-off events. [2024-10-13 12:48:49,202 INFO L125 PetriNetUnfolderBase]: For 311/311 co-relation queries the response was YES. [2024-10-13 12:48:49,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 947 events. 465/947 cut-off events. For 311/311 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4679 event pairs, 324 based on Foata normal form. 1/936 useless extension candidates. Maximal degree in co-relation 805. Up to 778 conditions per place. [2024-10-13 12:48:49,206 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 25 selfloop transitions, 1 changer transitions 3/38 dead transitions. [2024-10-13 12:48:49,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 164 flow [2024-10-13 12:48:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:48:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:48:49,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-10-13 12:48:49,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2024-10-13 12:48:49,208 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 114 flow. Second operand 3 states and 67 transitions. [2024-10-13 12:48:49,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 164 flow [2024-10-13 12:48:49,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:48:49,211 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 100 flow [2024-10-13 12:48:49,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-10-13 12:48:49,211 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-10-13 12:48:49,211 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 100 flow [2024-10-13 12:48:49,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-10-13 12:48:49,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:49,212 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] [2024-10-13 12:48:49,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 12:48:49,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:49,413 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:49,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:49,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1624092035, now seen corresponding path program 1 times [2024-10-13 12:48:49,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:49,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652286153] [2024-10-13 12:48:49,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:49,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:49,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652286153] [2024-10-13 12:48:49,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652286153] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:48:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126793934] [2024-10-13 12:48:49,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:49,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:49,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:48:49,481 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:48:49,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 12:48:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:49,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 12:48:49,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:48:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:49,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:48:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:49,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126793934] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:48:49,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:48:49,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-13 12:48:49,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578113265] [2024-10-13 12:48:49,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:48:49,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 12:48:49,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:49,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 12:48:49,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 12:48:49,648 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-10-13 12:48:49,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 100 flow. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 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) [2024-10-13 12:48:49,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:49,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-10-13 12:48:49,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:49,875 INFO L124 PetriNetUnfolderBase]: 1031/2003 cut-off events. [2024-10-13 12:48:49,875 INFO L125 PetriNetUnfolderBase]: For 376/376 co-relation queries the response was YES. [2024-10-13 12:48:49,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4468 conditions, 2003 events. 1031/2003 cut-off events. For 376/376 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 10124 event pairs, 132 based on Foata normal form. 90/2087 useless extension candidates. Maximal degree in co-relation 4459. Up to 396 conditions per place. [2024-10-13 12:48:49,882 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 90 selfloop transitions, 6 changer transitions 0/104 dead transitions. [2024-10-13 12:48:49,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 104 transitions, 498 flow [2024-10-13 12:48:49,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:48:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:48:49,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-10-13 12:48:49,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-10-13 12:48:49,886 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 100 flow. Second operand 6 states and 178 transitions. [2024-10-13 12:48:49,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 104 transitions, 498 flow [2024-10-13 12:48:49,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 104 transitions, 497 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:48:49,888 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 139 flow [2024-10-13 12:48:49,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=139, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2024-10-13 12:48:49,889 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 7 predicate places. [2024-10-13 12:48:49,889 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 139 flow [2024-10-13 12:48:49,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 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) [2024-10-13 12:48:49,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:49,890 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:48:49,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 12:48:50,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:50,092 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:50,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1609042487, now seen corresponding path program 2 times [2024-10-13 12:48:50,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:50,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065309214] [2024-10-13 12:48:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:50,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-13 12:48:50,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:50,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065309214] [2024-10-13 12:48:50,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065309214] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:48:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341335938] [2024-10-13 12:48:50,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:48:50,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:50,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:48:50,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:48:50,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 12:48:50,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 12:48:50,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:48:50,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 12:48:50,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:48:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 12:48:50,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:48:50,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341335938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:48:50,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 12:48:50,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-13 12:48:50,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626890519] [2024-10-13 12:48:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:48:50,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:48:50,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:50,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:48:50,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:48:50,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-13 12:48:50,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 139 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-10-13 12:48:50,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:50,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-13 12:48:50,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:50,462 INFO L124 PetriNetUnfolderBase]: 894/1788 cut-off events. [2024-10-13 12:48:50,463 INFO L125 PetriNetUnfolderBase]: For 1125/1125 co-relation queries the response was YES. [2024-10-13 12:48:50,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4367 conditions, 1788 events. 894/1788 cut-off events. For 1125/1125 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8022 event pairs, 233 based on Foata normal form. 0/1691 useless extension candidates. Maximal degree in co-relation 4355. Up to 837 conditions per place. [2024-10-13 12:48:50,469 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 47 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-10-13 12:48:50,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 59 transitions, 329 flow [2024-10-13 12:48:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:48:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:48:50,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-10-13 12:48:50,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2024-10-13 12:48:50,470 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 139 flow. Second operand 4 states and 97 transitions. [2024-10-13 12:48:50,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 59 transitions, 329 flow [2024-10-13 12:48:50,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 314 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-10-13 12:48:50,474 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 156 flow [2024-10-13 12:48:50,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2024-10-13 12:48:50,476 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2024-10-13 12:48:50,477 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 156 flow [2024-10-13 12:48:50,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-10-13 12:48:50,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:50,477 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:48:50,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 12:48:50,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:50,679 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:50,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:50,679 INFO L85 PathProgramCache]: Analyzing trace with hash 489881297, now seen corresponding path program 3 times [2024-10-13 12:48:50,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:50,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693269384] [2024-10-13 12:48:50,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:50,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:48:50,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:50,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693269384] [2024-10-13 12:48:50,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693269384] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:48:50,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536221686] [2024-10-13 12:48:50,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 12:48:50,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:50,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:48:50,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:48:50,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 12:48:50,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 12:48:50,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:48:50,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 12:48:50,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:48:50,942 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:48:50,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:48:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 22 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 12:48:50,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536221686] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:48:50,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:48:50,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-10-13 12:48:50,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735234651] [2024-10-13 12:48:50,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:48:50,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 12:48:50,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:50,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 12:48:50,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 12:48:50,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-10-13 12:48:50,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 156 flow. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 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) [2024-10-13 12:48:50,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:50,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-10-13 12:48:50,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:51,288 INFO L124 PetriNetUnfolderBase]: 1852/3711 cut-off events. [2024-10-13 12:48:51,289 INFO L125 PetriNetUnfolderBase]: For 2289/2289 co-relation queries the response was YES. [2024-10-13 12:48:51,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9317 conditions, 3711 events. 1852/3711 cut-off events. For 2289/2289 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 21004 event pairs, 209 based on Foata normal form. 207/3908 useless extension candidates. Maximal degree in co-relation 9301. Up to 1072 conditions per place. [2024-10-13 12:48:51,306 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 93 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2024-10-13 12:48:51,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 109 transitions, 644 flow [2024-10-13 12:48:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:48:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:48:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-10-13 12:48:51,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589147286821705 [2024-10-13 12:48:51,307 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 156 flow. Second operand 6 states and 170 transitions. [2024-10-13 12:48:51,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 109 transitions, 644 flow [2024-10-13 12:48:51,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 109 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:48:51,311 INFO L231 Difference]: Finished difference. Result has 59 places, 43 transitions, 195 flow [2024-10-13 12:48:51,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=195, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2024-10-13 12:48:51,312 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 19 predicate places. [2024-10-13 12:48:51,312 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 43 transitions, 195 flow [2024-10-13 12:48:51,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 7 states have internal predecessors, (151), 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) [2024-10-13 12:48:51,312 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:51,313 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:48:51,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 12:48:51,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:51,513 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:51,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:51,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2031657981, now seen corresponding path program 4 times [2024-10-13 12:48:51,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:51,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949847172] [2024-10-13 12:48:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:51,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:51,703 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 46 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 12:48:51,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:51,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949847172] [2024-10-13 12:48:51,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949847172] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:48:51,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037156774] [2024-10-13 12:48:51,705 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 12:48:51,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:51,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:48:51,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:48:51,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 12:48:51,820 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 12:48:51,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:48:51,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 12:48:51,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:48:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-13 12:48:51,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:48:51,944 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-13 12:48:51,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037156774] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:48:51,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:48:51,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2024-10-13 12:48:51,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712033689] [2024-10-13 12:48:51,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:48:51,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:48:51,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:51,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:48:51,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:48:51,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-13 12:48:51,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 43 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-10-13 12:48:51,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:51,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-13 12:48:51,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:52,070 INFO L124 PetriNetUnfolderBase]: 544/1203 cut-off events. [2024-10-13 12:48:52,071 INFO L125 PetriNetUnfolderBase]: For 1510/1512 co-relation queries the response was YES. [2024-10-13 12:48:52,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3435 conditions, 1203 events. 544/1203 cut-off events. For 1510/1512 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4937 event pairs, 149 based on Foata normal form. 0/1197 useless extension candidates. Maximal degree in co-relation 3416. Up to 528 conditions per place. [2024-10-13 12:48:52,077 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-10-13 12:48:52,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 62 transitions, 400 flow [2024-10-13 12:48:52,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:48:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:48:52,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-10-13 12:48:52,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5523255813953488 [2024-10-13 12:48:52,078 INFO L175 Difference]: Start difference. First operand has 59 places, 43 transitions, 195 flow. Second operand 4 states and 95 transitions. [2024-10-13 12:48:52,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 62 transitions, 400 flow [2024-10-13 12:48:52,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 62 transitions, 384 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-10-13 12:48:52,081 INFO L231 Difference]: Finished difference. Result has 61 places, 41 transitions, 183 flow [2024-10-13 12:48:52,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=61, PETRI_TRANSITIONS=41} [2024-10-13 12:48:52,082 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 21 predicate places. [2024-10-13 12:48:52,083 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 41 transitions, 183 flow [2024-10-13 12:48:52,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-10-13 12:48:52,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:48:52,084 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:48:52,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 12:48:52,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:52,285 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-13 12:48:52,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:48:52,285 INFO L85 PathProgramCache]: Analyzing trace with hash -558433593, now seen corresponding path program 5 times [2024-10-13 12:48:52,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:48:52,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679247721] [2024-10-13 12:48:52,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:48:52,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:48:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:48:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:52,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:48:52,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679247721] [2024-10-13 12:48:52,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679247721] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:48:52,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143393167] [2024-10-13 12:48:52,633 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 12:48:52,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:52,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:48:52,634 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 12:48:52,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 12:48:52,738 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-10-13 12:48:52,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:48:52,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-13 12:48:52,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:48:52,964 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 3 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:52,964 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:48:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:48:53,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143393167] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:48:53,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:48:53,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 30 [2024-10-13 12:48:53,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567397236] [2024-10-13 12:48:53,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:48:53,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-13 12:48:53,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:48:53,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-13 12:48:53,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2024-10-13 12:48:53,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-13 12:48:53,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 41 transitions, 183 flow. Second operand has 31 states, 31 states have (on average 17.129032258064516) internal successors, (531), 31 states have internal predecessors, (531), 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) [2024-10-13 12:48:53,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:48:53,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-13 12:48:53,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:48:53,980 INFO L124 PetriNetUnfolderBase]: 589/1255 cut-off events. [2024-10-13 12:48:53,980 INFO L125 PetriNetUnfolderBase]: For 1429/1429 co-relation queries the response was YES. [2024-10-13 12:48:53,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3550 conditions, 1255 events. 589/1255 cut-off events. For 1429/1429 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5111 event pairs, 39 based on Foata normal form. 30/1281 useless extension candidates. Maximal degree in co-relation 3529. Up to 232 conditions per place. [2024-10-13 12:48:53,984 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 130/130 dead transitions. [2024-10-13 12:48:53,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 130 transitions, 817 flow [2024-10-13 12:48:53,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 12:48:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 12:48:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 275 transitions. [2024-10-13 12:48:53,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5329457364341085 [2024-10-13 12:48:53,985 INFO L175 Difference]: Start difference. First operand has 61 places, 41 transitions, 183 flow. Second operand 12 states and 275 transitions. [2024-10-13 12:48:53,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 130 transitions, 817 flow [2024-10-13 12:48:53,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 130 transitions, 785 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:48:53,988 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2024-10-13 12:48:53,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2024-10-13 12:48:53,988 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2024-10-13 12:48:53,989 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2024-10-13 12:48:53,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 17.129032258064516) internal successors, (531), 31 states have internal predecessors, (531), 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) [2024-10-13 12:48:53,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-13 12:48:53,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-13 12:48:53,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-13 12:48:53,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-13 12:48:54,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 12:48:54,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:48:54,196 INFO L407 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1] [2024-10-13 12:48:54,201 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 12:48:54,202 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:48:54,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:48:54 BasicIcfg [2024-10-13 12:48:54,205 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:48:54,205 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:48:54,205 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:48:54,206 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:48:54,206 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:48:47" (3/4) ... [2024-10-13 12:48:54,207 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:48:54,213 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-13 12:48:54,213 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-13 12:48:54,216 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2024-10-13 12:48:54,216 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-13 12:48:54,217 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 12:48:54,217 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 12:48:54,217 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 12:48:54,286 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:48:54,286 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:48:54,286 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:48:54,287 INFO L158 Benchmark]: Toolchain (without parser) took 7654.01ms. Allocated memory was 167.8MB in the beginning and 268.4MB in the end (delta: 100.7MB). Free memory was 109.7MB in the beginning and 145.1MB in the end (delta: -35.4MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2024-10-13 12:48:54,287 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:48:54,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.20ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 79.8MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-13 12:48:54,287 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.52ms. Allocated memory is still 167.8MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:48:54,287 INFO L158 Benchmark]: Boogie Preprocessor took 43.46ms. Allocated memory is still 167.8MB. Free memory was 77.7MB in the beginning and 75.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:48:54,287 INFO L158 Benchmark]: RCFGBuilder took 532.24ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 75.1MB in the beginning and 154.5MB in the end (delta: -79.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-10-13 12:48:54,288 INFO L158 Benchmark]: TraceAbstraction took 6473.57ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 154.5MB in the beginning and 149.1MB in the end (delta: 5.4MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. [2024-10-13 12:48:54,288 INFO L158 Benchmark]: Witness Printer took 80.98ms. Allocated memory is still 268.4MB. Free memory was 149.1MB in the beginning and 145.1MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 12:48:54,289 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.20ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 79.8MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.52ms. Allocated memory is still 167.8MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.46ms. Allocated memory is still 167.8MB. Free memory was 77.7MB in the beginning and 75.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.24ms. Allocated memory was 167.8MB in the beginning and 222.3MB in the end (delta: 54.5MB). Free memory was 75.1MB in the beginning and 154.5MB in the end (delta: -79.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6473.57ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 154.5MB in the beginning and 149.1MB in the end (delta: 5.4MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. * Witness Printer took 80.98ms. Allocated memory is still 268.4MB. Free memory was 149.1MB in the beginning and 145.1MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 906]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.4s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 398 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 387 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2233 IncrementalHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 2 mSDtfsCounter, 2233 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 528 GetRequests, 470 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=7, InterpolantAutomatonStates: 44, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 622 NumberOfCodeBlocks, 607 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 813 ConstructedInterpolants, 0 QuantifiedInterpolants, 3054 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1638 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 19 InterpolantComputations, 5 PerfectInterpolantSequences, 354/758 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 12:48:54,319 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