./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.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 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 17:55:18,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 17:55:18,091 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 17:55:18,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 17:55:18,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 17:55:18,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 17:55:18,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 17:55:18,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 17:55:18,122 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 17:55:18,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 17:55:18,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 17:55:18,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 17:55:18,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 17:55:18,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 17:55:18,125 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 17:55:18,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 17:55:18,126 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 17:55:18,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 17:55:18,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 17:55:18,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 17:55:18,127 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 17:55:18,128 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 17:55:18,128 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 17:55:18,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 17:55:18,129 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 17:55:18,129 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 17:55:18,130 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 17:55:18,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 17:55:18,130 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 17:55:18,131 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 17:55:18,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 17:55:18,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 17:55:18,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 17:55:18,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:55:18,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 17:55:18,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 17:55:18,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 17:55:18,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 17:55:18,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 17:55:18,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 17:55:18,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 17:55:18,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 17:55:18,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 [2024-11-10 17:55:18,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 17:55:18,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 17:55:18,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 17:55:18,410 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 17:55:18,411 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 17:55:18,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2024-11-10 17:55:19,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 17:55:20,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 17:55:20,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2024-11-10 17:55:20,120 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0fb8353b/6c2714f814bb4fddaca2d1f9e9c5faf4/FLAGb43c12b27 [2024-11-10 17:55:20,403 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0fb8353b/6c2714f814bb4fddaca2d1f9e9c5faf4 [2024-11-10 17:55:20,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 17:55:20,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 17:55:20,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 17:55:20,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 17:55:20,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 17:55:20,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:55:20" (1/1) ... [2024-11-10 17:55:20,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30490626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:20, skipping insertion in model container [2024-11-10 17:55:20,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:55:20" (1/1) ... [2024-11-10 17:55:20,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 17:55:20,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:55:20,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 17:55:20,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 17:55:21,037 INFO L204 MainTranslator]: Completed translation [2024-11-10 17:55:21,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21 WrapperNode [2024-11-10 17:55:21,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 17:55:21,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 17:55:21,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 17:55:21,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 17:55:21,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,120 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2024-11-10 17:55:21,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 17:55:21,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 17:55:21,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 17:55:21,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 17:55:21,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,175 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]. [2024-11-10 17:55:21,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,187 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 17:55:21,205 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 17:55:21,205 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 17:55:21,205 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 17:55:21,206 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (1/1) ... [2024-11-10 17:55:21,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 17:55:21,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 17:55:21,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 17:55:21,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 17:55:21,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 17:55:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 17:55:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 17:55:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 17:55:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 17:55:21,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 17:55:21,293 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 17:55:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 17:55:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 17:55:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 17:55:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 17:55:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 17:55:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 17:55:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 17:55:21,298 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 17:55:21,443 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 17:55:21,449 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 17:55:21,799 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 17:55:21,800 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 17:55:22,032 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 17:55:22,033 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 17:55:22,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:55:22 BoogieIcfgContainer [2024-11-10 17:55:22,034 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 17:55:22,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 17:55:22,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 17:55:22,040 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 17:55:22,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:55:20" (1/3) ... [2024-11-10 17:55:22,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f944af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:55:22, skipping insertion in model container [2024-11-10 17:55:22,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:55:21" (2/3) ... [2024-11-10 17:55:22,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f944af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:55:22, skipping insertion in model container [2024-11-10 17:55:22,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 05:55:22" (3/3) ... [2024-11-10 17:55:22,044 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_tso.oepc.i [2024-11-10 17:55:22,062 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 17:55:22,062 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-10 17:55:22,062 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 17:55:22,120 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 17:55:22,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-10 17:55:22,192 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-10 17:55:22,192 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:55:22,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 109 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-10 17:55:22,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-10 17:55:22,201 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-10 17:55:22,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 17:55:22,218 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;@4cf0ea7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 17:55:22,218 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 17:55:22,225 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 17:55:22,225 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-10 17:55:22,225 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:55:22,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:22,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:55:22,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:55:22,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:22,232 INFO L85 PathProgramCache]: Analyzing trace with hash -89567129, now seen corresponding path program 1 times [2024-11-10 17:55:22,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:22,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761948679] [2024-11-10 17:55:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:55:22,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761948679] [2024-11-10 17:55:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761948679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:22,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:22,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:55:22,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629344872] [2024-11-10 17:55:22,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:22,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:55:22,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:55:22,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:55:22,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 17:55:22,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:55:22,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:22,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 17:55:22,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:29,571 INFO L124 PetriNetUnfolderBase]: 57803/76427 cut-off events. [2024-11-10 17:55:29,571 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2024-11-10 17:55:29,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152551 conditions, 76427 events. 57803/76427 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 2135. Compared 462472 event pairs, 7283 based on Foata normal form. 3420/79774 useless extension candidates. Maximal degree in co-relation 152539. Up to 65281 conditions per place. [2024-11-10 17:55:30,232 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 63 selfloop transitions, 2 changer transitions 2/75 dead transitions. [2024-11-10 17:55:30,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 75 transitions, 299 flow [2024-11-10 17:55:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:55:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:55:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-10 17:55:30,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-11-10 17:55:30,245 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 108 transitions. [2024-11-10 17:55:30,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 75 transitions, 299 flow [2024-11-10 17:55:30,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 294 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 17:55:30,259 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-10 17:55:30,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-10 17:55:30,266 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-10 17:55:30,267 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-10 17:55:30,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:55:30,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:30,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:55:30,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 17:55:30,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:55:30,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1476684546, now seen corresponding path program 1 times [2024-11-10 17:55:30,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:30,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653761820] [2024-11-10 17:55:30,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:30,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:30,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:55:30,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:30,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653761820] [2024-11-10 17:55:30,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653761820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:30,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:30,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 17:55:30,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547482319] [2024-11-10 17:55:30,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:30,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 17:55:30,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:30,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 17:55:30,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 17:55:30,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-10 17:55:30,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 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) [2024-11-10 17:55:30,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:30,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-10 17:55:30,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:35,365 INFO L124 PetriNetUnfolderBase]: 51971/71771 cut-off events. [2024-11-10 17:55:35,365 INFO L125 PetriNetUnfolderBase]: For 2664/2664 co-relation queries the response was YES. [2024-11-10 17:55:35,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142997 conditions, 71771 events. 51971/71771 cut-off events. For 2664/2664 co-relation queries the response was YES. Maximal size of possible extension queue 2152. Compared 461276 event pairs, 51971 based on Foata normal form. 1728/73192 useless extension candidates. Maximal degree in co-relation 142987. Up to 68040 conditions per place. [2024-11-10 17:55:35,719 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-10 17:55:35,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2024-11-10 17:55:35,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 17:55:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 17:55:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-10 17:55:35,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43636363636363634 [2024-11-10 17:55:35,722 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2024-11-10 17:55:35,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2024-11-10 17:55:35,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 17:55:35,737 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-10 17:55:35,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-10 17:55:35,738 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-10 17:55:35,738 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-10 17:55:35,738 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) [2024-11-10 17:55:35,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:35,739 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:55:35,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 17:55:35,740 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:55:35,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:35,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1476683803, now seen corresponding path program 1 times [2024-11-10 17:55:35,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:35,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351026283] [2024-11-10 17:55:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:35,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:55:36,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:36,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351026283] [2024-11-10 17:55:36,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351026283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:36,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:36,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:55:36,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353474342] [2024-11-10 17:55:36,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:36,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:55:36,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:36,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:55:36,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:55:36,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-10 17:55:36,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:55:36,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:36,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-10 17:55:36,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:46,480 INFO L124 PetriNetUnfolderBase]: 107580/144918 cut-off events. [2024-11-10 17:55:46,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 17:55:46,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287501 conditions, 144918 events. 107580/144918 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3895. Compared 969186 event pairs, 4601 based on Foata normal form. 0/142320 useless extension candidates. Maximal degree in co-relation 287495. Up to 66535 conditions per place. [2024-11-10 17:55:47,461 INFO L140 encePairwiseOnDemand]: 40/55 looper letters, 79 selfloop transitions, 13 changer transitions 165/263 dead transitions. [2024-11-10 17:55:47,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 263 transitions, 1060 flow [2024-11-10 17:55:47,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 17:55:47,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 17:55:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 392 transitions. [2024-11-10 17:55:47,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.593939393939394 [2024-11-10 17:55:47,466 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 12 states and 392 transitions. [2024-11-10 17:55:47,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 263 transitions, 1060 flow [2024-11-10 17:55:47,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 263 transitions, 1059 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 17:55:47,472 INFO L231 Difference]: Finished difference. Result has 74 places, 54 transitions, 233 flow [2024-11-10 17:55:47,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=233, PETRI_PLACES=74, PETRI_TRANSITIONS=54} [2024-11-10 17:55:47,473 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2024-11-10 17:55:47,473 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 54 transitions, 233 flow [2024-11-10 17:55:47,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:55:47,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:47,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 17:55:47,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 17:55:47,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:55:47,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:47,474 INFO L85 PathProgramCache]: Analyzing trace with hash -65337404, now seen corresponding path program 1 times [2024-11-10 17:55:47,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:47,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146338726] [2024-11-10 17:55:47,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:47,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:55:47,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:47,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146338726] [2024-11-10 17:55:47,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146338726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:47,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:47,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 17:55:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543918342] [2024-11-10 17:55:47,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:47,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 17:55:47,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:47,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 17:55:47,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 17:55:47,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-10 17:55:47,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 54 transitions, 233 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) [2024-11-10 17:55:47,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:47,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-10 17:55:47,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 17:55:56,279 INFO L124 PetriNetUnfolderBase]: 77403/105937 cut-off events. [2024-11-10 17:55:56,280 INFO L125 PetriNetUnfolderBase]: For 128018/128020 co-relation queries the response was YES. [2024-11-10 17:55:56,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325965 conditions, 105937 events. 77403/105937 cut-off events. For 128018/128020 co-relation queries the response was YES. Maximal size of possible extension queue 2608. Compared 677780 event pairs, 21555 based on Foata normal form. 2592/108436 useless extension candidates. Maximal degree in co-relation 325949. Up to 58413 conditions per place. [2024-11-10 17:55:56,918 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 72 selfloop transitions, 3 changer transitions 99/180 dead transitions. [2024-11-10 17:55:56,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 180 transitions, 1175 flow [2024-11-10 17:55:56,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 17:55:56,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 17:55:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 212 transitions. [2024-11-10 17:55:56,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5506493506493506 [2024-11-10 17:55:56,920 INFO L175 Difference]: Start difference. First operand has 74 places, 54 transitions, 233 flow. Second operand 7 states and 212 transitions. [2024-11-10 17:55:56,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 180 transitions, 1175 flow [2024-11-10 17:55:58,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 180 transitions, 1093 flow, removed 41 selfloop flow, removed 5 redundant places. [2024-11-10 17:55:58,793 INFO L231 Difference]: Finished difference. Result has 71 places, 54 transitions, 230 flow [2024-11-10 17:55:58,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=230, PETRI_PLACES=71, PETRI_TRANSITIONS=54} [2024-11-10 17:55:58,794 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2024-11-10 17:55:58,794 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 54 transitions, 230 flow [2024-11-10 17:55:58,794 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) [2024-11-10 17:55:58,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 17:55:58,795 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] [2024-11-10 17:55:58,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 17:55:58,795 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-10 17:55:58,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 17:55:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1084236200, now seen corresponding path program 1 times [2024-11-10 17:55:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 17:55:58,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71086564] [2024-11-10 17:55:58,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 17:55:58,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 17:55:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 17:55:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 17:55:59,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 17:55:59,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71086564] [2024-11-10 17:55:59,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71086564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 17:55:59,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 17:55:59,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 17:55:59,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317219743] [2024-11-10 17:55:59,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 17:55:59,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 17:55:59,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 17:55:59,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 17:55:59,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 17:55:59,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-10 17:55:59,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 54 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 17:55:59,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 17:55:59,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-10 17:55:59,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand