./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.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 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:12:48,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:12:48,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:12:48,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:12:48,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:12:48,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:12:48,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:12:48,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:12:48,200 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:12:48,200 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:12:48,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:12:48,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:12:48,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:12:48,203 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:12:48,204 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:12:48,204 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:12:48,204 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:12:48,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:12:48,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:12:48,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:12:48,205 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:12:48,209 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:12:48,209 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:12:48,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:12:48,209 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:12:48,209 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:12:48,210 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:12:48,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:12:48,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:12:48,210 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:12:48,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:12:48,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:12:48,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:12:48,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:12:48,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:12:48,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:12:48,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:12:48,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:12:48,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:12:48,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:12:48,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:12:48,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:12:48,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 [2024-11-17 03:12:48,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:12:48,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:12:48,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:12:48,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:12:48,475 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:12:48,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2024-11-17 03:12:49,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:12:50,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:12:50,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2024-11-17 03:12:50,037 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2897475/bb5a93e573104ae5b54fd825f82e7722/FLAGbbf0ec685 [2024-11-17 03:12:50,053 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2897475/bb5a93e573104ae5b54fd825f82e7722 [2024-11-17 03:12:50,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:12:50,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:12:50,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:12:50,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:12:50,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:12:50,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1545ea87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50, skipping insertion in model container [2024-11-17 03:12:50,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:12:50,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:12:50,437 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:12:50,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:12:50,581 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:12:50,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50 WrapperNode [2024-11-17 03:12:50,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:12:50,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:12:50,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:12:50,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:12:50,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,636 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-11-17 03:12:50,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:12:50,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:12:50,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:12:50,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:12:50,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,650 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,674 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 03:12:50,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,684 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:12:50,697 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:12:50,697 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:12:50,697 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:12:50,698 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (1/1) ... [2024-11-17 03:12:50,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:12:50,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:12:50,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:12:50,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:12:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:12:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:12:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:12:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:12:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:12:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:12:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:12:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:12:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:12:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:12:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:12:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:12:50,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:12:50,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:12:50,797 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:12:50,950 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:12:50,951 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:12:51,223 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:12:51,224 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:12:51,360 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:12:51,360 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:12:51,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:12:51 BoogieIcfgContainer [2024-11-17 03:12:51,360 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:12:51,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:12:51,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:12:51,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:12:51,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:12:50" (1/3) ... [2024-11-17 03:12:51,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b3298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:12:51, skipping insertion in model container [2024-11-17 03:12:51,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:12:50" (2/3) ... [2024-11-17 03:12:51,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b3298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:12:51, skipping insertion in model container [2024-11-17 03:12:51,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:12:51" (3/3) ... [2024-11-17 03:12:51,371 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2024-11-17 03:12:51,388 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:12:51,388 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-17 03:12:51,388 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:12:51,461 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:12:51,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-17 03:12:51,521 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-17 03:12:51,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:12:51,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-11-17 03:12:51,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-17 03:12:51,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-17 03:12:51,536 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:12:51,542 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;@34be7b2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:12:51,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-17 03:12:51,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:12:51,552 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-17 03:12:51,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:12:51,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:12:51,553 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:12:51,554 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:12:51,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:12:51,559 INFO L85 PathProgramCache]: Analyzing trace with hash 254482331, now seen corresponding path program 1 times [2024-11-17 03:12:51,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:12:51,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462088006] [2024-11-17 03:12:51,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:12:51,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:12:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:12:51,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:12:51,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:12:51,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462088006] [2024-11-17 03:12:51,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462088006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:12:51,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:12:51,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:12:51,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257183716] [2024-11-17 03:12:51,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:12:51,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:12:51,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:12:51,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:12:51,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:12:51,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:12:51,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:12:51,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:12:51,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:12:51,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:12:57,358 INFO L124 PetriNetUnfolderBase]: 50459/67051 cut-off events. [2024-11-17 03:12:57,358 INFO L125 PetriNetUnfolderBase]: For 243/243 co-relation queries the response was YES. [2024-11-17 03:12:57,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133671 conditions, 67051 events. 50459/67051 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 1942. Compared 410792 event pairs, 6249 based on Foata normal form. 3024/70033 useless extension candidates. Maximal degree in co-relation 133659. Up to 57231 conditions per place. [2024-11-17 03:12:57,734 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2024-11-17 03:12:57,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 75 transitions, 302 flow [2024-11-17 03:12:57,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:12:57,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:12:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-17 03:12:57,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-17 03:12:57,748 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 108 transitions. [2024-11-17 03:12:57,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 75 transitions, 302 flow [2024-11-17 03:12:57,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:12:57,759 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-17 03:12:57,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-11-17 03:12:57,766 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-17 03:12:57,766 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-17 03:12:57,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:12:57,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:12:57,767 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:12:57,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:12:57,767 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:12:57,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:12:57,768 INFO L85 PathProgramCache]: Analyzing trace with hash 793566225, now seen corresponding path program 1 times [2024-11-17 03:12:57,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:12:57,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637658369] [2024-11-17 03:12:57,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:12:57,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:12:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:12:57,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:12:57,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:12:57,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637658369] [2024-11-17 03:12:57,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637658369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:12:57,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:12:57,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:12:57,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014995380] [2024-11-17 03:12:57,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:12:57,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:12:57,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:12:57,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:12:57,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:12:57,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-17 03:12:57,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:12:57,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:12:57,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-17 03:12:57,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:13:02,046 INFO L124 PetriNetUnfolderBase]: 45383/63887 cut-off events. [2024-11-17 03:13:02,047 INFO L125 PetriNetUnfolderBase]: For 2352/2352 co-relation queries the response was YES. [2024-11-17 03:13:02,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126269 conditions, 63887 events. 45383/63887 cut-off events. For 2352/2352 co-relation queries the response was YES. Maximal size of possible extension queue 1953. Compared 421995 event pairs, 45383 based on Foata normal form. 1512/65156 useless extension candidates. Maximal degree in co-relation 126259. Up to 59508 conditions per place. [2024-11-17 03:13:02,428 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-17 03:13:02,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2024-11-17 03:13:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:13:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:13:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-17 03:13:02,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2024-11-17 03:13:02,431 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2024-11-17 03:13:02,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2024-11-17 03:13:02,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:13:02,437 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-17 03:13:02,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-17 03:13:02,438 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-17 03:13:02,439 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-17 03:13:02,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:13:02,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:13:02,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:13:02,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:13:02,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:13:02,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:13:02,441 INFO L85 PathProgramCache]: Analyzing trace with hash 793567765, now seen corresponding path program 1 times [2024-11-17 03:13:02,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:13:02,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439356947] [2024-11-17 03:13:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:13:02,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:13:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:13:02,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:13:02,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:13:02,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439356947] [2024-11-17 03:13:02,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439356947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:13:02,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:13:02,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:13:02,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837584284] [2024-11-17 03:13:02,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:13:02,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:13:02,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:13:02,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:13:02,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:13:02,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-17 03:13:02,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:13:02,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:13:02,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-17 03:13:02,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:13:12,076 INFO L124 PetriNetUnfolderBase]: 96259/130007 cut-off events. [2024-11-17 03:13:12,076 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:13:12,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257769 conditions, 130007 events. 96259/130007 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3934. Compared 858158 event pairs, 26263 based on Foata normal form. 0/127520 useless extension candidates. Maximal degree in co-relation 257763. Up to 56001 conditions per place. [2024-11-17 03:13:12,693 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 62 selfloop transitions, 7 changer transitions 131/206 dead transitions. [2024-11-17 03:13:12,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 206 transitions, 828 flow [2024-11-17 03:13:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 03:13:12,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 03:13:12,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 301 transitions. [2024-11-17 03:13:12,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6193415637860082 [2024-11-17 03:13:12,696 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 9 states and 301 transitions. [2024-11-17 03:13:12,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 206 transitions, 828 flow [2024-11-17 03:13:12,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 206 transitions, 827 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:13:12,700 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 191 flow [2024-11-17 03:13:12,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=191, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2024-11-17 03:13:12,701 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-11-17 03:13:12,701 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 191 flow [2024-11-17 03:13:12,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:13:12,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:13:12,701 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:13:12,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:13:12,702 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:13:12,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:13:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash 381836352, now seen corresponding path program 1 times [2024-11-17 03:13:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:13:12,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456047548] [2024-11-17 03:13:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:13:12,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:13:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:13:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:13:12,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:13:12,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456047548] [2024-11-17 03:13:12,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456047548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:13:12,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:13:12,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:13:12,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808631662] [2024-11-17 03:13:12,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:13:12,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:13:12,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:13:12,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:13:12,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:13:12,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-17 03:13:12,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 191 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:13:12,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:13:12,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-17 03:13:12,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:13:21,040 INFO L124 PetriNetUnfolderBase]: 72191/99487 cut-off events. [2024-11-17 03:13:21,041 INFO L125 PetriNetUnfolderBase]: For 92650/92650 co-relation queries the response was YES. [2024-11-17 03:13:21,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266162 conditions, 99487 events. 72191/99487 cut-off events. For 92650/92650 co-relation queries the response was YES. Maximal size of possible extension queue 2893. Compared 656874 event pairs, 18519 based on Foata normal form. 2480/101950 useless extension candidates. Maximal degree in co-relation 266147. Up to 60721 conditions per place. [2024-11-17 03:13:21,737 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 60 selfloop transitions, 3 changer transitions 89/158 dead transitions. [2024-11-17 03:13:21,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 158 transitions, 937 flow [2024-11-17 03:13:21,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:13:21,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:13:21,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 209 transitions. [2024-11-17 03:13:21,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5529100529100529 [2024-11-17 03:13:21,740 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 191 flow. Second operand 7 states and 209 transitions. [2024-11-17 03:13:21,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 158 transitions, 937 flow [2024-11-17 03:13:22,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 158 transitions, 829 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-11-17 03:13:22,964 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 180 flow [2024-11-17 03:13:22,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=180, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2024-11-17 03:13:22,965 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-11-17 03:13:22,965 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 180 flow [2024-11-17 03:13:22,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:13:22,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:13:22,966 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] [2024-11-17 03:13:22,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:13:22,966 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:13:22,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:13:22,967 INFO L85 PathProgramCache]: Analyzing trace with hash 109820183, now seen corresponding path program 1 times [2024-11-17 03:13:22,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:13:22,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581446218] [2024-11-17 03:13:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:13:22,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:13:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:13:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:13:23,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:13:23,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581446218] [2024-11-17 03:13:23,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581446218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:13:23,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:13:23,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:13:23,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811088151] [2024-11-17 03:13:23,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:13:23,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:13:23,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:13:23,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:13:23,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:13:23,076 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:13:23,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:13:23,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:13:23,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:13:23,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand