./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix015.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix015.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 951d1f5e5395236f7d0da1ed6dd6f4a1398d1a8ad75d935345731aeb4389e0e8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:20:40,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:20:40,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:20:40,235 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:20:40,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:20:40,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:20:40,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:20:40,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:20:40,267 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:20:40,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:20:40,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:20:40,269 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:20:40,270 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:20:40,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:20:40,271 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:20:40,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:20:40,274 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:20:40,274 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:20:40,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:20:40,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:20:40,275 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:20:40,277 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:20:40,278 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:20:40,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:20:40,278 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:20:40,278 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:20:40,279 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:20:40,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:20:40,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:20:40,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:20:40,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:20:40,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:20:40,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:20:40,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:20:40,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:20:40,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:20:40,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:20:40,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:20:40,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:20:40,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:20:40,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:20:40,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:20:40,284 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 951d1f5e5395236f7d0da1ed6dd6f4a1398d1a8ad75d935345731aeb4389e0e8 [2024-11-20 17:20:40,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:20:40,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:20:40,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:20:40,584 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:20:40,585 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:20:40,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix015.oepc.i [2024-11-20 17:20:42,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:20:42,248 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:20:42,249 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix015.oepc.i [2024-11-20 17:20:42,267 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da1a2b402/f9eaed4b38dc4c3289519dca8a2ec8dc/FLAGb1d18a4d0 [2024-11-20 17:20:42,604 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da1a2b402/f9eaed4b38dc4c3289519dca8a2ec8dc [2024-11-20 17:20:42,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:20:42,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:20:42,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:20:42,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:20:42,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:20:42,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:20:42" (1/1) ... [2024-11-20 17:20:42,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ba2952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:42, skipping insertion in model container [2024-11-20 17:20:42,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:20:42" (1/1) ... [2024-11-20 17:20:42,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:20:43,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:20:43,078 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:20:43,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:20:43,187 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:20:43,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43 WrapperNode [2024-11-20 17:20:43,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:20:43,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:20:43,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:20:43,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:20:43,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,257 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 129 [2024-11-20 17:20:43,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:20:43,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:20:43,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:20:43,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:20:43,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,315 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]. [2024-11-20 17:20:43,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:20:43,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:20:43,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:20:43,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:20:43,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (1/1) ... [2024-11-20 17:20:43,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:20:43,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:20:43,391 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) [2024-11-20 17:20:43,396 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 [2024-11-20 17:20:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:20:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:20:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 17:20:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 17:20:43,443 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 17:20:43,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 17:20:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-20 17:20:43,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-20 17:20:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:20:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:20:43,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:20:43,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:20:43,447 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:20:43,633 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:20:43,635 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:20:43,946 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:20:43,946 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:20:44,149 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:20:44,149 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:20:44,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:20:44 BoogieIcfgContainer [2024-11-20 17:20:44,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:20:44,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:20:44,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:20:44,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:20:44,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:20:42" (1/3) ... [2024-11-20 17:20:44,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518b244d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:20:44, skipping insertion in model container [2024-11-20 17:20:44,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:43" (2/3) ... [2024-11-20 17:20:44,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518b244d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:20:44, skipping insertion in model container [2024-11-20 17:20:44,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:20:44" (3/3) ... [2024-11-20 17:20:44,160 INFO L112 eAbstractionObserver]: Analyzing ICFG mix015.oepc.i [2024-11-20 17:20:44,176 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:20:44,177 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:20:44,177 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:20:44,231 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:20:44,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 47 transitions, 106 flow [2024-11-20 17:20:44,303 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-11-20 17:20:44,303 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:20:44,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 44 events. 2/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2024-11-20 17:20:44,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 47 transitions, 106 flow [2024-11-20 17:20:44,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 44 transitions, 97 flow [2024-11-20 17:20:44,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:20:44,332 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;@2dd254, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:20:44,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-20 17:20:44,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:20:44,338 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-20 17:20:44,338 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:20:44,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:44,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:20:44,342 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:44,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:44,348 INFO L85 PathProgramCache]: Analyzing trace with hash 12342592, now seen corresponding path program 1 times [2024-11-20 17:20:44,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:44,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431129484] [2024-11-20 17:20:44,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:44,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:44,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:44,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431129484] [2024-11-20 17:20:44,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431129484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:44,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:44,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:20:44,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498010467] [2024-11-20 17:20:44,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:44,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:20:44,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:20:44,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:20:44,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 47 [2024-11-20 17:20:44,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-20 17:20:44,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:44,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 47 [2024-11-20 17:20:44,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:45,365 INFO L124 PetriNetUnfolderBase]: 825/1738 cut-off events. [2024-11-20 17:20:45,365 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-20 17:20:45,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3019 conditions, 1738 events. 825/1738 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 12243 event pairs, 129 based on Foata normal form. 96/1817 useless extension candidates. Maximal degree in co-relation 3008. Up to 1009 conditions per place. [2024-11-20 17:20:45,382 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 33 selfloop transitions, 2 changer transitions 2/56 dead transitions. [2024-11-20 17:20:45,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 201 flow [2024-11-20 17:20:45,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:20:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:20:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-20 17:20:45,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7659574468085106 [2024-11-20 17:20:45,396 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 97 flow. Second operand 3 states and 108 transitions. [2024-11-20 17:20:45,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 201 flow [2024-11-20 17:20:45,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 196 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:20:45,404 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 88 flow [2024-11-20 17:20:45,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-11-20 17:20:45,411 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2024-11-20 17:20:45,411 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 88 flow [2024-11-20 17:20:45,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-20 17:20:45,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:45,412 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:45,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:20:45,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:45,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:45,413 INFO L85 PathProgramCache]: Analyzing trace with hash -637461648, now seen corresponding path program 1 times [2024-11-20 17:20:45,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:45,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417224483] [2024-11-20 17:20:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:45,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:45,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417224483] [2024-11-20 17:20:45,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417224483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:45,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:45,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:20:45,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610532437] [2024-11-20 17:20:45,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:45,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:20:45,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:45,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:20:45,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:20:45,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-20 17:20:45,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-20 17:20:45,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:45,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-20 17:20:45,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:45,729 INFO L124 PetriNetUnfolderBase]: 721/1387 cut-off events. [2024-11-20 17:20:45,729 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-20 17:20:45,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 1387 events. 721/1387 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 9053 event pairs, 721 based on Foata normal form. 48/1382 useless extension candidates. Maximal degree in co-relation 2597. Up to 1090 conditions per place. [2024-11-20 17:20:45,739 INFO L140 encePairwiseOnDemand]: 45/47 looper letters, 18 selfloop transitions, 1 changer transitions 1/38 dead transitions. [2024-11-20 17:20:45,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 126 flow [2024-11-20 17:20:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:20:45,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:20:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-20 17:20:45,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5957446808510638 [2024-11-20 17:20:45,742 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 88 flow. Second operand 3 states and 84 transitions. [2024-11-20 17:20:45,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 126 flow [2024-11-20 17:20:45,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:20:45,744 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 82 flow [2024-11-20 17:20:45,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2024-11-20 17:20:45,745 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2024-11-20 17:20:45,745 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 82 flow [2024-11-20 17:20:45,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-20 17:20:45,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:45,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:45,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:20:45,748 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:45,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:45,750 INFO L85 PathProgramCache]: Analyzing trace with hash -637460159, now seen corresponding path program 1 times [2024-11-20 17:20:45,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:45,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985416114] [2024-11-20 17:20:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:45,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:46,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:46,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985416114] [2024-11-20 17:20:46,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985416114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:46,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:46,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:20:46,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779804264] [2024-11-20 17:20:46,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:46,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:20:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:46,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:20:46,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:20:46,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 47 [2024-11-20 17:20:46,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2024-11-20 17:20:46,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:46,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 47 [2024-11-20 17:20:46,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:46,820 INFO L124 PetriNetUnfolderBase]: 2971/4786 cut-off events. [2024-11-20 17:20:46,820 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:20:46,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9196 conditions, 4786 events. 2971/4786 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 30863 event pairs, 1349 based on Foata normal form. 0/4661 useless extension candidates. Maximal degree in co-relation 9190. Up to 2823 conditions per place. [2024-11-20 17:20:46,841 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 31 selfloop transitions, 4 changer transitions 50/97 dead transitions. [2024-11-20 17:20:46,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 97 transitions, 376 flow [2024-11-20 17:20:46,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:20:46,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:20:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 215 transitions. [2024-11-20 17:20:46,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5718085106382979 [2024-11-20 17:20:46,845 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 82 flow. Second operand 8 states and 215 transitions. [2024-11-20 17:20:46,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 97 transitions, 376 flow [2024-11-20 17:20:46,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:20:46,848 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 125 flow [2024-11-20 17:20:46,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=125, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-20 17:20:46,850 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 5 predicate places. [2024-11-20 17:20:46,850 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 125 flow [2024-11-20 17:20:46,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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) [2024-11-20 17:20:46,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:46,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:46,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:20:46,852 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:46,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:46,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2026390798, now seen corresponding path program 1 times [2024-11-20 17:20:46,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:46,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464489587] [2024-11-20 17:20:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:46,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:47,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:47,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:47,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464489587] [2024-11-20 17:20:47,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464489587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:47,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:47,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:20:47,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710711697] [2024-11-20 17:20:47,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:47,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:20:47,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:47,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:20:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:20:47,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 47 [2024-11-20 17:20:47,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-11-20 17:20:47,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:47,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 47 [2024-11-20 17:20:47,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:47,717 INFO L124 PetriNetUnfolderBase]: 2125/3516 cut-off events. [2024-11-20 17:20:47,718 INFO L125 PetriNetUnfolderBase]: For 3022/3025 co-relation queries the response was YES. [2024-11-20 17:20:47,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9004 conditions, 3516 events. 2125/3516 cut-off events. For 3022/3025 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 21784 event pairs, 1269 based on Foata normal form. 116/3618 useless extension candidates. Maximal degree in co-relation 8992. Up to 1953 conditions per place. [2024-11-20 17:20:47,745 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 38 selfloop transitions, 3 changer transitions 41/94 dead transitions. [2024-11-20 17:20:47,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 94 transitions, 485 flow [2024-11-20 17:20:47,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:20:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:20:47,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2024-11-20 17:20:47,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5866261398176292 [2024-11-20 17:20:47,748 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 125 flow. Second operand 7 states and 193 transitions. [2024-11-20 17:20:47,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 94 transitions, 485 flow [2024-11-20 17:20:47,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 94 transitions, 473 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-20 17:20:47,769 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 136 flow [2024-11-20 17:20:47,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=136, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2024-11-20 17:20:47,771 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2024-11-20 17:20:47,771 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 136 flow [2024-11-20 17:20:47,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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) [2024-11-20 17:20:47,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:47,772 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:47,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:20:47,773 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:47,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:47,774 INFO L85 PathProgramCache]: Analyzing trace with hash 901431122, now seen corresponding path program 1 times [2024-11-20 17:20:47,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:47,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083877768] [2024-11-20 17:20:47,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:47,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:47,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:47,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:47,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083877768] [2024-11-20 17:20:47,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083877768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:47,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:47,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:20:47,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841978450] [2024-11-20 17:20:47,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:47,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:20:47,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:20:47,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:20:47,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 17:20:47,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-11-20 17:20:47,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:47,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 17:20:47,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:48,348 INFO L124 PetriNetUnfolderBase]: 1187/2072 cut-off events. [2024-11-20 17:20:48,348 INFO L125 PetriNetUnfolderBase]: For 1680/1727 co-relation queries the response was YES. [2024-11-20 17:20:48,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5072 conditions, 2072 events. 1187/2072 cut-off events. For 1680/1727 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 12689 event pairs, 284 based on Foata normal form. 60/2042 useless extension candidates. Maximal degree in co-relation 5056. Up to 1229 conditions per place. [2024-11-20 17:20:48,363 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 27 selfloop transitions, 3 changer transitions 27/74 dead transitions. [2024-11-20 17:20:48,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 348 flow [2024-11-20 17:20:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:20:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:20:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 191 transitions. [2024-11-20 17:20:48,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5805471124620061 [2024-11-20 17:20:48,365 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 136 flow. Second operand 7 states and 191 transitions. [2024-11-20 17:20:48,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 348 flow [2024-11-20 17:20:48,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 74 transitions, 326 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-20 17:20:48,381 INFO L231 Difference]: Finished difference. Result has 60 places, 39 transitions, 141 flow [2024-11-20 17:20:48,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=141, PETRI_PLACES=60, PETRI_TRANSITIONS=39} [2024-11-20 17:20:48,382 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2024-11-20 17:20:48,382 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 39 transitions, 141 flow [2024-11-20 17:20:48,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-11-20 17:20:48,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:48,383 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] [2024-11-20 17:20:48,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:20:48,383 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:48,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2021279503, now seen corresponding path program 1 times [2024-11-20 17:20:48,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:48,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748155043] [2024-11-20 17:20:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:48,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:48,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:48,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:48,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748155043] [2024-11-20 17:20:48,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748155043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:48,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:48,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:20:48,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631720175] [2024-11-20 17:20:48,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:48,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:20:48,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:48,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:20:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:20:48,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-20 17:20:48,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 39 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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) [2024-11-20 17:20:48,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:48,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-20 17:20:48,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:48,967 INFO L124 PetriNetUnfolderBase]: 1840/3088 cut-off events. [2024-11-20 17:20:48,968 INFO L125 PetriNetUnfolderBase]: For 1229/1247 co-relation queries the response was YES. [2024-11-20 17:20:48,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6891 conditions, 3088 events. 1840/3088 cut-off events. For 1229/1247 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 18684 event pairs, 307 based on Foata normal form. 139/3141 useless extension candidates. Maximal degree in co-relation 6874. Up to 1530 conditions per place. [2024-11-20 17:20:48,991 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 43 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-11-20 17:20:48,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 291 flow [2024-11-20 17:20:48,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:20:48,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:20:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-20 17:20:48,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648936170212766 [2024-11-20 17:20:48,993 INFO L175 Difference]: Start difference. First operand has 60 places, 39 transitions, 141 flow. Second operand 4 states and 122 transitions. [2024-11-20 17:20:48,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 291 flow [2024-11-20 17:20:49,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 64 transitions, 277 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-20 17:20:49,002 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 165 flow [2024-11-20 17:20:49,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-20 17:20:49,002 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 3 predicate places. [2024-11-20 17:20:49,003 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 165 flow [2024-11-20 17:20:49,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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) [2024-11-20 17:20:49,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:49,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:49,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:20:49,003 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:49,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:49,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1306524924, now seen corresponding path program 1 times [2024-11-20 17:20:49,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:49,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337524362] [2024-11-20 17:20:49,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:49,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:49,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:49,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337524362] [2024-11-20 17:20:49,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337524362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:49,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:49,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:20:49,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561633170] [2024-11-20 17:20:49,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:49,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:20:49,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:49,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:20:49,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:20:49,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-20 17:20:49,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-11-20 17:20:49,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:49,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-20 17:20:49,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:49,530 INFO L124 PetriNetUnfolderBase]: 1362/2324 cut-off events. [2024-11-20 17:20:49,531 INFO L125 PetriNetUnfolderBase]: For 857/865 co-relation queries the response was YES. [2024-11-20 17:20:49,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5692 conditions, 2324 events. 1362/2324 cut-off events. For 857/865 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 13210 event pairs, 218 based on Foata normal form. 110/2361 useless extension candidates. Maximal degree in co-relation 5677. Up to 674 conditions per place. [2024-11-20 17:20:49,552 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 55 selfloop transitions, 8 changer transitions 0/79 dead transitions. [2024-11-20 17:20:49,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 384 flow [2024-11-20 17:20:49,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:20:49,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:20:49,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 155 transitions. [2024-11-20 17:20:49,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-11-20 17:20:49,554 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 165 flow. Second operand 5 states and 155 transitions. [2024-11-20 17:20:49,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 384 flow [2024-11-20 17:20:49,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 79 transitions, 381 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:20:49,560 INFO L231 Difference]: Finished difference. Result has 60 places, 47 transitions, 217 flow [2024-11-20 17:20:49,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=217, PETRI_PLACES=60, PETRI_TRANSITIONS=47} [2024-11-20 17:20:49,561 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2024-11-20 17:20:49,561 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 47 transitions, 217 flow [2024-11-20 17:20:49,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-11-20 17:20:49,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:49,562 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:49,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:20:49,562 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:49,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:49,563 INFO L85 PathProgramCache]: Analyzing trace with hash 716410388, now seen corresponding path program 1 times [2024-11-20 17:20:49,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:49,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340213683] [2024-11-20 17:20:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:49,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:50,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:50,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340213683] [2024-11-20 17:20:50,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340213683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:50,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:50,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:20:50,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543921168] [2024-11-20 17:20:50,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:50,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 17:20:50,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:50,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 17:20:50,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:20:50,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2024-11-20 17:20:50,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 47 transitions, 217 flow. Second operand has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 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) [2024-11-20 17:20:50,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:50,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2024-11-20 17:20:50,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:51,047 INFO L124 PetriNetUnfolderBase]: 1667/3302 cut-off events. [2024-11-20 17:20:51,047 INFO L125 PetriNetUnfolderBase]: For 2700/3224 co-relation queries the response was YES. [2024-11-20 17:20:51,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8689 conditions, 3302 events. 1667/3302 cut-off events. For 2700/3224 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 23917 event pairs, 597 based on Foata normal form. 96/3146 useless extension candidates. Maximal degree in co-relation 8671. Up to 993 conditions per place. [2024-11-20 17:20:51,072 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 52 selfloop transitions, 9 changer transitions 19/107 dead transitions. [2024-11-20 17:20:51,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 107 transitions, 565 flow [2024-11-20 17:20:51,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:20:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:20:51,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 261 transitions. [2024-11-20 17:20:51,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6170212765957447 [2024-11-20 17:20:51,075 INFO L175 Difference]: Start difference. First operand has 60 places, 47 transitions, 217 flow. Second operand 9 states and 261 transitions. [2024-11-20 17:20:51,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 107 transitions, 565 flow [2024-11-20 17:20:51,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 107 transitions, 553 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-20 17:20:51,084 INFO L231 Difference]: Finished difference. Result has 71 places, 54 transitions, 260 flow [2024-11-20 17:20:51,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=260, PETRI_PLACES=71, PETRI_TRANSITIONS=54} [2024-11-20 17:20:51,085 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 19 predicate places. [2024-11-20 17:20:51,086 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 54 transitions, 260 flow [2024-11-20 17:20:51,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 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) [2024-11-20 17:20:51,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:51,087 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:51,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 17:20:51,092 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:51,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:51,093 INFO L85 PathProgramCache]: Analyzing trace with hash 650703752, now seen corresponding path program 2 times [2024-11-20 17:20:51,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:51,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979827828] [2024-11-20 17:20:51,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:51,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:51,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:51,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979827828] [2024-11-20 17:20:51,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979827828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:51,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:51,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:20:51,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419371449] [2024-11-20 17:20:51,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:51,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:20:51,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:51,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:20:51,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:20:51,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-20 17:20:51,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 54 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-11-20 17:20:51,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:51,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-20 17:20:51,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:51,891 INFO L124 PetriNetUnfolderBase]: 1938/3261 cut-off events. [2024-11-20 17:20:51,891 INFO L125 PetriNetUnfolderBase]: For 3774/3801 co-relation queries the response was YES. [2024-11-20 17:20:51,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9846 conditions, 3261 events. 1938/3261 cut-off events. For 3774/3801 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 19759 event pairs, 320 based on Foata normal form. 112/3279 useless extension candidates. Maximal degree in co-relation 9823. Up to 1232 conditions per place. [2024-11-20 17:20:51,910 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 57 selfloop transitions, 11 changer transitions 4/88 dead transitions. [2024-11-20 17:20:51,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 88 transitions, 518 flow [2024-11-20 17:20:51,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:20:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:20:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-11-20 17:20:51,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6028368794326241 [2024-11-20 17:20:51,912 INFO L175 Difference]: Start difference. First operand has 71 places, 54 transitions, 260 flow. Second operand 6 states and 170 transitions. [2024-11-20 17:20:51,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 88 transitions, 518 flow [2024-11-20 17:20:51,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 88 transitions, 497 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-11-20 17:20:51,917 INFO L231 Difference]: Finished difference. Result has 71 places, 52 transitions, 268 flow [2024-11-20 17:20:51,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=71, PETRI_TRANSITIONS=52} [2024-11-20 17:20:51,918 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 19 predicate places. [2024-11-20 17:20:51,918 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 52 transitions, 268 flow [2024-11-20 17:20:51,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-11-20 17:20:51,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:51,919 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:51,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 17:20:51,919 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:51,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:51,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2078355424, now seen corresponding path program 1 times [2024-11-20 17:20:51,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:51,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220716029] [2024-11-20 17:20:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:51,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:53,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:53,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:53,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220716029] [2024-11-20 17:20:53,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220716029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:53,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:53,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 17:20:53,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355477055] [2024-11-20 17:20:53,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:53,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 17:20:53,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:53,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 17:20:53,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 17:20:53,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2024-11-20 17:20:53,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 52 transitions, 268 flow. Second operand has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 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) [2024-11-20 17:20:53,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:53,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2024-11-20 17:20:53,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:53,776 INFO L124 PetriNetUnfolderBase]: 965/2144 cut-off events. [2024-11-20 17:20:53,776 INFO L125 PetriNetUnfolderBase]: For 3605/4104 co-relation queries the response was YES. [2024-11-20 17:20:53,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6303 conditions, 2144 events. 965/2144 cut-off events. For 3605/4104 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15453 event pairs, 364 based on Foata normal form. 47/1980 useless extension candidates. Maximal degree in co-relation 6281. Up to 1030 conditions per place. [2024-11-20 17:20:53,794 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 38 selfloop transitions, 11 changer transitions 18/95 dead transitions. [2024-11-20 17:20:53,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 95 transitions, 542 flow [2024-11-20 17:20:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:20:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:20:53,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 223 transitions. [2024-11-20 17:20:53,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5930851063829787 [2024-11-20 17:20:53,797 INFO L175 Difference]: Start difference. First operand has 71 places, 52 transitions, 268 flow. Second operand 8 states and 223 transitions. [2024-11-20 17:20:53,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 95 transitions, 542 flow [2024-11-20 17:20:53,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 95 transitions, 502 flow, removed 14 selfloop flow, removed 6 redundant places. [2024-11-20 17:20:53,811 INFO L231 Difference]: Finished difference. Result has 74 places, 61 transitions, 317 flow [2024-11-20 17:20:53,811 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=317, PETRI_PLACES=74, PETRI_TRANSITIONS=61} [2024-11-20 17:20:53,811 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 22 predicate places. [2024-11-20 17:20:53,812 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 61 transitions, 317 flow [2024-11-20 17:20:53,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 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) [2024-11-20 17:20:53,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:53,812 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:53,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 17:20:53,812 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:53,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:53,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1349890178, now seen corresponding path program 2 times [2024-11-20 17:20:53,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:53,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885867286] [2024-11-20 17:20:53,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:53,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:54,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:54,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:54,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885867286] [2024-11-20 17:20:54,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885867286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:54,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:54,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:20:54,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175001778] [2024-11-20 17:20:54,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:54,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:20:54,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:54,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:20:54,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:20:54,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-20 17:20:54,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 61 transitions, 317 flow. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 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) [2024-11-20 17:20:54,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:54,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-20 17:20:54,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:54,674 INFO L124 PetriNetUnfolderBase]: 2228/4136 cut-off events. [2024-11-20 17:20:54,674 INFO L125 PetriNetUnfolderBase]: For 5024/5609 co-relation queries the response was YES. [2024-11-20 17:20:54,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12130 conditions, 4136 events. 2228/4136 cut-off events. For 5024/5609 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 30183 event pairs, 607 based on Foata normal form. 87/3891 useless extension candidates. Maximal degree in co-relation 12107. Up to 1695 conditions per place. [2024-11-20 17:20:54,701 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 49 selfloop transitions, 4 changer transitions 49/122 dead transitions. [2024-11-20 17:20:54,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 122 transitions, 798 flow [2024-11-20 17:20:54,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:20:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:20:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 196 transitions. [2024-11-20 17:20:54,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5212765957446809 [2024-11-20 17:20:54,703 INFO L175 Difference]: Start difference. First operand has 74 places, 61 transitions, 317 flow. Second operand 8 states and 196 transitions. [2024-11-20 17:20:54,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 122 transitions, 798 flow [2024-11-20 17:20:54,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 122 transitions, 776 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-11-20 17:20:54,735 INFO L231 Difference]: Finished difference. Result has 79 places, 56 transitions, 294 flow [2024-11-20 17:20:54,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=294, PETRI_PLACES=79, PETRI_TRANSITIONS=56} [2024-11-20 17:20:54,736 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 27 predicate places. [2024-11-20 17:20:54,736 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 56 transitions, 294 flow [2024-11-20 17:20:54,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 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) [2024-11-20 17:20:54,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:54,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:54,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 17:20:54,737 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:54,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:54,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1915553570, now seen corresponding path program 3 times [2024-11-20 17:20:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:54,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890309815] [2024-11-20 17:20:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:54,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:55,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:55,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:55,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890309815] [2024-11-20 17:20:55,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890309815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:55,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:55,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:20:55,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111231755] [2024-11-20 17:20:55,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:55,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:20:55,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:55,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:20:55,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:20:55,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-20 17:20:55,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 56 transitions, 294 flow. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 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) [2024-11-20 17:20:55,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:55,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-20 17:20:55,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:55,414 INFO L124 PetriNetUnfolderBase]: 1135/2194 cut-off events. [2024-11-20 17:20:55,414 INFO L125 PetriNetUnfolderBase]: For 2616/2972 co-relation queries the response was YES. [2024-11-20 17:20:55,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6437 conditions, 2194 events. 1135/2194 cut-off events. For 2616/2972 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 14292 event pairs, 207 based on Foata normal form. 49/2056 useless extension candidates. Maximal degree in co-relation 6411. Up to 781 conditions per place. [2024-11-20 17:20:55,428 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 36 selfloop transitions, 3 changer transitions 43/102 dead transitions. [2024-11-20 17:20:55,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 102 transitions, 657 flow [2024-11-20 17:20:55,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:20:55,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:20:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 186 transitions. [2024-11-20 17:20:55,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4946808510638298 [2024-11-20 17:20:55,430 INFO L175 Difference]: Start difference. First operand has 79 places, 56 transitions, 294 flow. Second operand 8 states and 186 transitions. [2024-11-20 17:20:55,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 102 transitions, 657 flow [2024-11-20 17:20:55,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 102 transitions, 614 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-20 17:20:55,444 INFO L231 Difference]: Finished difference. Result has 79 places, 49 transitions, 245 flow [2024-11-20 17:20:55,444 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=245, PETRI_PLACES=79, PETRI_TRANSITIONS=49} [2024-11-20 17:20:55,444 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 27 predicate places. [2024-11-20 17:20:55,445 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 49 transitions, 245 flow [2024-11-20 17:20:55,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 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) [2024-11-20 17:20:55,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:55,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:55,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 17:20:55,445 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:55,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:55,446 INFO L85 PathProgramCache]: Analyzing trace with hash 778409344, now seen corresponding path program 4 times [2024-11-20 17:20:55,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:55,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918423543] [2024-11-20 17:20:55,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:55,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:56,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:56,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918423543] [2024-11-20 17:20:56,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918423543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:56,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:56,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 17:20:56,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130905662] [2024-11-20 17:20:56,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:56,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 17:20:56,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:56,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 17:20:56,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 17:20:56,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 47 [2024-11-20 17:20:56,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 49 transitions, 245 flow. Second operand has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 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) [2024-11-20 17:20:56,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:56,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 47 [2024-11-20 17:20:56,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:56,508 INFO L124 PetriNetUnfolderBase]: 537/1181 cut-off events. [2024-11-20 17:20:56,508 INFO L125 PetriNetUnfolderBase]: For 1199/1342 co-relation queries the response was YES. [2024-11-20 17:20:56,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3267 conditions, 1181 events. 537/1181 cut-off events. For 1199/1342 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7112 event pairs, 169 based on Foata normal form. 21/1101 useless extension candidates. Maximal degree in co-relation 3241. Up to 487 conditions per place. [2024-11-20 17:20:56,515 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 26 selfloop transitions, 4 changer transitions 25/80 dead transitions. [2024-11-20 17:20:56,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 80 transitions, 445 flow [2024-11-20 17:20:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:20:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:20:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2024-11-20 17:20:56,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5508274231678487 [2024-11-20 17:20:56,518 INFO L175 Difference]: Start difference. First operand has 79 places, 49 transitions, 245 flow. Second operand 9 states and 233 transitions. [2024-11-20 17:20:56,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 80 transitions, 445 flow [2024-11-20 17:20:56,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 80 transitions, 421 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-20 17:20:56,525 INFO L231 Difference]: Finished difference. Result has 81 places, 49 transitions, 248 flow [2024-11-20 17:20:56,525 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=248, PETRI_PLACES=81, PETRI_TRANSITIONS=49} [2024-11-20 17:20:56,526 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 29 predicate places. [2024-11-20 17:20:56,526 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 49 transitions, 248 flow [2024-11-20 17:20:56,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 9 states have internal predecessors, (197), 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) [2024-11-20 17:20:56,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:56,526 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:56,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 17:20:56,526 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:20:56,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:56,527 INFO L85 PathProgramCache]: Analyzing trace with hash -390442268, now seen corresponding path program 5 times [2024-11-20 17:20:56,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:56,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41217427] [2024-11-20 17:20:56,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:56,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:20:56,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:20:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:20:56,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 17:20:56,701 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:20:56,702 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-20 17:20:56,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-20 17:20:56,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-20 17:20:56,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-20 17:20:56,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-20 17:20:56,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-20 17:20:56,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-20 17:20:56,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 17:20:56,708 INFO L407 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:56,802 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:20:56,802 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:20:56,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:20:56 BasicIcfg [2024-11-20 17:20:56,809 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:20:56,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:20:56,810 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:20:56,810 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:20:56,810 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:20:44" (3/4) ... [2024-11-20 17:20:56,812 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 17:20:56,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:20:56,813 INFO L158 Benchmark]: Toolchain (without parser) took 14205.05ms. Allocated memory was 159.4MB in the beginning and 459.3MB in the end (delta: 299.9MB). Free memory was 102.1MB in the beginning and 178.3MB in the end (delta: -76.2MB). Peak memory consumption was 225.5MB. Max. memory is 16.1GB. [2024-11-20 17:20:56,813 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:20:56,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.06ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 75.8MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-20 17:20:56,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.94ms. Allocated memory is still 159.4MB. Free memory was 75.8MB in the beginning and 73.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:20:56,814 INFO L158 Benchmark]: Boogie Preprocessor took 86.42ms. Allocated memory is still 159.4MB. Free memory was 73.2MB in the beginning and 69.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:20:56,814 INFO L158 Benchmark]: RCFGBuilder took 801.32ms. Allocated memory is still 159.4MB. Free memory was 69.5MB in the beginning and 80.9MB in the end (delta: -11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 17:20:56,815 INFO L158 Benchmark]: TraceAbstraction took 12655.95ms. Allocated memory was 159.4MB in the beginning and 459.3MB in the end (delta: 299.9MB). Free memory was 80.2MB in the beginning and 179.4MB in the end (delta: -99.2MB). Peak memory consumption was 202.4MB. Max. memory is 16.1GB. [2024-11-20 17:20:56,815 INFO L158 Benchmark]: Witness Printer took 3.25ms. Allocated memory is still 459.3MB. Free memory was 179.4MB in the beginning and 178.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:20:56,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.06ms. Allocated memory is still 159.4MB. Free memory was 102.1MB in the beginning and 75.8MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.94ms. Allocated memory is still 159.4MB. Free memory was 75.8MB in the beginning and 73.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.42ms. Allocated memory is still 159.4MB. Free memory was 73.2MB in the beginning and 69.5MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 801.32ms. Allocated memory is still 159.4MB. Free memory was 69.5MB in the beginning and 80.9MB in the end (delta: -11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12655.95ms. Allocated memory was 159.4MB in the beginning and 459.3MB in the end (delta: 299.9MB). Free memory was 80.2MB in the beginning and 179.4MB in the end (delta: -99.2MB). Peak memory consumption was 202.4MB. Max. memory is 16.1GB. * Witness Printer took 3.25ms. Allocated memory is still 459.3MB. Free memory was 179.4MB in the beginning and 178.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p0_EBX = 0; [L715] 0 int __unbuffered_p1_EAX = 0; [L717] 0 int __unbuffered_p2_EAX = 0; [L719] 0 int __unbuffered_p2_EBX = 0; [L721] 0 int a = 0; [L722] 0 _Bool a$flush_delayed; [L723] 0 int a$mem_tmp; [L724] 0 _Bool a$r_buff0_thd0; [L725] 0 _Bool a$r_buff0_thd1; [L726] 0 _Bool a$r_buff0_thd2; [L727] 0 _Bool a$r_buff0_thd3; [L728] 0 _Bool a$r_buff1_thd0; [L729] 0 _Bool a$r_buff1_thd1; [L730] 0 _Bool a$r_buff1_thd2; [L731] 0 _Bool a$r_buff1_thd3; [L732] 0 _Bool a$read_delayed; [L733] 0 int *a$read_delayed_var; [L734] 0 int a$w_buff0; [L735] 0 _Bool a$w_buff0_used; [L736] 0 int a$w_buff1; [L737] 0 _Bool a$w_buff1_used; [L738] 0 _Bool main$tmp_guard0; [L739] 0 _Bool main$tmp_guard1; [L741] 0 int x = 0; [L743] 0 int y = 0; [L745] 0 int z = 0; [L746] 0 _Bool weak$$choice0; [L747] 0 _Bool weak$$choice2; [L850] 0 pthread_t t385; [L851] FCALL, FORK 0 pthread_create(&t385, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t385=-2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L852] 0 pthread_t t386; [L853] FCALL, FORK 0 pthread_create(&t386, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t385=-2, t386=-1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L854] 0 pthread_t t387; [L855] FCALL, FORK 0 pthread_create(&t387, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t385=-2, t386=-1, t387=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L751] 1 a$w_buff1 = a$w_buff0 [L752] 1 a$w_buff0 = 1 [L753] 1 a$w_buff1_used = a$w_buff0_used [L754] 1 a$w_buff0_used = (_Bool)1 [L755] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L755] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L756] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L757] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L758] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L759] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L760] 1 a$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L763] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L766] 1 __unbuffered_p0_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L769] 1 __unbuffered_p0_EBX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L786] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L789] 2 __unbuffered_p1_EAX = z VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L792] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L793] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L794] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L795] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L796] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L806] 3 z = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L809] 3 __unbuffered_p2_EAX = z VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L812] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L813] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L814] 3 a$flush_delayed = weak$$choice2 [L815] 3 a$mem_tmp = a [L816] 3 a = !a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff1) [L817] 3 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff0)) [L818] 3 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff1 : a$w_buff1)) [L819] 3 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used)) [L820] 3 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L821] 3 a$r_buff0_thd3 = weak$$choice2 ? a$r_buff0_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff0_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3)) [L822] 3 a$r_buff1_thd3 = weak$$choice2 ? a$r_buff1_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff1_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L823] 3 __unbuffered_p2_EBX = a [L824] 3 a = a$flush_delayed ? a$mem_tmp : a [L825] 3 a$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L828] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L829] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L830] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L831] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L832] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L772] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L773] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L774] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L775] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L776] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L799] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L779] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L835] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L857] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t385=-2, t386=-1, t387=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L859] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L859] RET 0 assume_abort_if_not(main$tmp_guard0) [L861] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L862] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L863] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L864] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L865] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t385=-2, t386=-1, t387=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L868] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t385=-2, t386=-1, t387=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L870] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] [L17] 0 __assert_fail ("0", "mix015.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=1, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 74 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.4s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 619 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 598 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1977 IncrementalHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 37 mSDtfsCounter, 1977 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=317occurred in iteration=10, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 293 ConstructedInterpolants, 0 QuantifiedInterpolants, 1927 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-20 17:20:56,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix015.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 951d1f5e5395236f7d0da1ed6dd6f4a1398d1a8ad75d935345731aeb4389e0e8 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:20:59,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:20:59,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-20 17:20:59,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:20:59,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:20:59,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:20:59,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:20:59,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:20:59,137 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:20:59,137 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:20:59,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:20:59,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:20:59,140 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:20:59,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:20:59,141 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:20:59,141 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:20:59,142 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:20:59,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:20:59,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:20:59,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:20:59,143 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:20:59,146 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:20:59,146 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:20:59,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:20:59,147 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:20:59,147 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 17:20:59,148 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:20:59,148 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 17:20:59,148 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:20:59,148 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:20:59,149 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:20:59,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:20:59,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:20:59,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:20:59,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:20:59,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:20:59,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:20:59,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:20:59,160 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 17:20:59,160 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 17:20:59,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:20:59,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:20:59,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:20:59,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:20:59,161 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 -> 951d1f5e5395236f7d0da1ed6dd6f4a1398d1a8ad75d935345731aeb4389e0e8 [2024-11-20 17:20:59,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:20:59,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:20:59,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:20:59,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:20:59,532 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:20:59,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix015.oepc.i [2024-11-20 17:21:01,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:21:01,369 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:21:01,371 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix015.oepc.i [2024-11-20 17:21:01,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62741f371/6c3dd8ee51e24499a3a6a7c014e8a18b/FLAG61db3807f [2024-11-20 17:21:01,411 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62741f371/6c3dd8ee51e24499a3a6a7c014e8a18b [2024-11-20 17:21:01,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:21:01,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:21:01,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:21:01,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:21:01,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:21:01,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:21:01" (1/1) ... [2024-11-20 17:21:01,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c57a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:01, skipping insertion in model container [2024-11-20 17:21:01,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:21:01" (1/1) ... [2024-11-20 17:21:01,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:21:01,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:21:01,899 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:21:01,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:21:02,017 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:21:02,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02 WrapperNode [2024-11-20 17:21:02,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:21:02,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:21:02,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:21:02,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:21:02,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,080 INFO L138 Inliner]: procedures = 176, calls = 49, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 130 [2024-11-20 17:21:02,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:21:02,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:21:02,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:21:02,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:21:02,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,135 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]. [2024-11-20 17:21:02,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:21:02,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:21:02,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:21:02,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:21:02,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (1/1) ... [2024-11-20 17:21:02,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:21:02,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:21:02,204 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) [2024-11-20 17:21:02,207 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 [2024-11-20 17:21:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:21:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:21:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 17:21:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 17:21:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 17:21:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 17:21:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 17:21:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-20 17:21:02,262 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-20 17:21:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:21:02,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:21:02,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:21:02,265 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:21:02,397 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:21:02,400 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:21:02,750 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:21:02,751 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:21:02,994 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:21:02,994 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:21:02,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:21:02 BoogieIcfgContainer [2024-11-20 17:21:02,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:21:02,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:21:02,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:21:03,002 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:21:03,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:21:01" (1/3) ... [2024-11-20 17:21:03,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fd4a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:21:03, skipping insertion in model container [2024-11-20 17:21:03,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:02" (2/3) ... [2024-11-20 17:21:03,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fd4a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:21:03, skipping insertion in model container [2024-11-20 17:21:03,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:21:02" (3/3) ... [2024-11-20 17:21:03,006 INFO L112 eAbstractionObserver]: Analyzing ICFG mix015.oepc.i [2024-11-20 17:21:03,024 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:21:03,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:21:03,024 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:21:03,098 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:21:03,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 47 transitions, 106 flow [2024-11-20 17:21:03,167 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-11-20 17:21:03,169 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:21:03,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 44 events. 2/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2024-11-20 17:21:03,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 47 transitions, 106 flow [2024-11-20 17:21:03,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 44 transitions, 97 flow [2024-11-20 17:21:03,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:21:03,190 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;@eac111f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:21:03,190 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-20 17:21:03,194 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:21:03,194 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-20 17:21:03,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:21:03,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:03,195 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:21:03,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:03,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash 12404160, now seen corresponding path program 1 times [2024-11-20 17:21:03,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:03,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241043672] [2024-11-20 17:21:03,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:03,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:03,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:03,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:03,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-20 17:21:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:03,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:21:03,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:21:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:03,370 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:21:03,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:21:03,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241043672] [2024-11-20 17:21:03,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241043672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:03,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:03,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:21:03,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951582692] [2024-11-20 17:21:03,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:03,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:21:03,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:21:03,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:21:03,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:21:03,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 47 [2024-11-20 17:21:03,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-20 17:21:03,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:03,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 47 [2024-11-20 17:21:03,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:03,838 INFO L124 PetriNetUnfolderBase]: 825/1738 cut-off events. [2024-11-20 17:21:03,838 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-20 17:21:03,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3019 conditions, 1738 events. 825/1738 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 12243 event pairs, 129 based on Foata normal form. 96/1817 useless extension candidates. Maximal degree in co-relation 3008. Up to 1009 conditions per place. [2024-11-20 17:21:03,851 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 33 selfloop transitions, 2 changer transitions 2/56 dead transitions. [2024-11-20 17:21:03,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 201 flow [2024-11-20 17:21:03,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:21:03,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:21:03,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-20 17:21:03,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7659574468085106 [2024-11-20 17:21:03,864 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 97 flow. Second operand 3 states and 108 transitions. [2024-11-20 17:21:03,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 201 flow [2024-11-20 17:21:03,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 196 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:21:03,869 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 88 flow [2024-11-20 17:21:03,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-11-20 17:21:03,874 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2024-11-20 17:21:03,874 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 88 flow [2024-11-20 17:21:03,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-20 17:21:03,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:03,874 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:21:03,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-20 17:21:04,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:04,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:04,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:04,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1244159566, now seen corresponding path program 1 times [2024-11-20 17:21:04,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:04,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489155398] [2024-11-20 17:21:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:04,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:04,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:04,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:04,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-20 17:21:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:04,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:21:04,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:21:04,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:04,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:21:04,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:21:04,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489155398] [2024-11-20 17:21:04,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489155398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:04,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:04,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:21:04,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57112919] [2024-11-20 17:21:04,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:04,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:21:04,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:21:04,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:21:04,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:21:04,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-20 17:21:04,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-11-20 17:21:04,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:04,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-20 17:21:04,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:04,724 INFO L124 PetriNetUnfolderBase]: 1680/2964 cut-off events. [2024-11-20 17:21:04,725 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-11-20 17:21:04,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5697 conditions, 2964 events. 1680/2964 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 19474 event pairs, 188 based on Foata normal form. 100/3028 useless extension candidates. Maximal degree in co-relation 5687. Up to 1579 conditions per place. [2024-11-20 17:21:04,746 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 43 selfloop transitions, 5 changer transitions 1/64 dead transitions. [2024-11-20 17:21:04,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 64 transitions, 244 flow [2024-11-20 17:21:04,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:21:04,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:21:04,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-11-20 17:21:04,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6542553191489362 [2024-11-20 17:21:04,748 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 88 flow. Second operand 4 states and 123 transitions. [2024-11-20 17:21:04,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 64 transitions, 244 flow [2024-11-20 17:21:04,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 64 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:21:04,752 INFO L231 Difference]: Finished difference. Result has 51 places, 42 transitions, 118 flow [2024-11-20 17:21:04,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=51, PETRI_TRANSITIONS=42} [2024-11-20 17:21:04,754 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2024-11-20 17:21:04,754 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 42 transitions, 118 flow [2024-11-20 17:21:04,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2024-11-20 17:21:04,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:04,756 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] [2024-11-20 17:21:04,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-20 17:21:04,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:04,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:04,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash -638263156, now seen corresponding path program 1 times [2024-11-20 17:21:04,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:04,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786080985] [2024-11-20 17:21:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:04,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:04,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:04,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:04,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-20 17:21:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:05,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:21:05,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:21:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:05,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:21:05,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:21:05,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786080985] [2024-11-20 17:21:05,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786080985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:05,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:05,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:21:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986414334] [2024-11-20 17:21:05,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:05,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:21:05,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:21:05,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:21:05,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:21:05,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-20 17:21:05,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-11-20 17:21:05,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:05,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-20 17:21:05,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:05,490 INFO L124 PetriNetUnfolderBase]: 1038/1842 cut-off events. [2024-11-20 17:21:05,490 INFO L125 PetriNetUnfolderBase]: For 435/435 co-relation queries the response was YES. [2024-11-20 17:21:05,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4075 conditions, 1842 events. 1038/1842 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 10504 event pairs, 100 based on Foata normal form. 82/1895 useless extension candidates. Maximal degree in co-relation 4063. Up to 697 conditions per place. [2024-11-20 17:21:05,503 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 54 selfloop transitions, 8 changer transitions 1/78 dead transitions. [2024-11-20 17:21:05,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 78 transitions, 337 flow [2024-11-20 17:21:05,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:21:05,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:21:05,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 155 transitions. [2024-11-20 17:21:05,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-11-20 17:21:05,506 INFO L175 Difference]: Start difference. First operand has 51 places, 42 transitions, 118 flow. Second operand 5 states and 155 transitions. [2024-11-20 17:21:05,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 78 transitions, 337 flow [2024-11-20 17:21:05,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 78 transitions, 327 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-20 17:21:05,510 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 158 flow [2024-11-20 17:21:05,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=55, PETRI_TRANSITIONS=45} [2024-11-20 17:21:05,511 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 3 predicate places. [2024-11-20 17:21:05,511 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 158 flow [2024-11-20 17:21:05,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-11-20 17:21:05,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:05,512 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:21:05,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-20 17:21:05,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:05,713 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:05,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:05,714 INFO L85 PathProgramCache]: Analyzing trace with hash -983055973, now seen corresponding path program 1 times [2024-11-20 17:21:05,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:05,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950687038] [2024-11-20 17:21:05,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:05,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:05,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:05,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:05,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-20 17:21:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:05,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:21:05,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:21:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:05,879 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:21:05,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:21:05,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [950687038] [2024-11-20 17:21:05,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [950687038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:05,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:05,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:21:05,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548249954] [2024-11-20 17:21:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:05,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:21:05,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:21:05,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:21:05,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:21:05,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 47 [2024-11-20 17:21:05,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2024-11-20 17:21:05,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:05,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 47 [2024-11-20 17:21:05,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:06,306 INFO L124 PetriNetUnfolderBase]: 581/991 cut-off events. [2024-11-20 17:21:06,306 INFO L125 PetriNetUnfolderBase]: For 756/756 co-relation queries the response was YES. [2024-11-20 17:21:06,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2525 conditions, 991 events. 581/991 cut-off events. For 756/756 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4608 event pairs, 83 based on Foata normal form. 40/1002 useless extension candidates. Maximal degree in co-relation 2511. Up to 308 conditions per place. [2024-11-20 17:21:06,313 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 47 selfloop transitions, 11 changer transitions 1/74 dead transitions. [2024-11-20 17:21:06,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 74 transitions, 344 flow [2024-11-20 17:21:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:21:06,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:21:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 169 transitions. [2024-11-20 17:21:06,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.599290780141844 [2024-11-20 17:21:06,315 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 158 flow. Second operand 6 states and 169 transitions. [2024-11-20 17:21:06,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 74 transitions, 344 flow [2024-11-20 17:21:06,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 74 transitions, 319 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-20 17:21:06,320 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 172 flow [2024-11-20 17:21:06,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=172, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2024-11-20 17:21:06,321 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 6 predicate places. [2024-11-20 17:21:06,322 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 172 flow [2024-11-20 17:21:06,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2024-11-20 17:21:06,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:06,322 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:21:06,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-20 17:21:06,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:06,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:06,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:06,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1425983057, now seen corresponding path program 1 times [2024-11-20 17:21:06,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:06,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845974217] [2024-11-20 17:21:06,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:06,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:06,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:06,530 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:06,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-20 17:21:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:06,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 17:21:06,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:21:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:06,672 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:21:06,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:21:06,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845974217] [2024-11-20 17:21:06,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845974217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:06,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:06,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:21:06,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150209158] [2024-11-20 17:21:06,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:06,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:21:06,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:21:06,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:21:06,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:21:06,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-20 17:21:06,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-20 17:21:06,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:06,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-20 17:21:06,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:06,781 INFO L124 PetriNetUnfolderBase]: 308/634 cut-off events. [2024-11-20 17:21:06,782 INFO L125 PetriNetUnfolderBase]: For 249/259 co-relation queries the response was YES. [2024-11-20 17:21:06,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 634 events. 308/634 cut-off events. For 249/259 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3169 event pairs, 288 based on Foata normal form. 8/598 useless extension candidates. Maximal degree in co-relation 1396. Up to 481 conditions per place. [2024-11-20 17:21:06,786 INFO L140 encePairwiseOnDemand]: 45/47 looper letters, 18 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-20 17:21:06,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 44 transitions, 210 flow [2024-11-20 17:21:06,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:21:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:21:06,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-20 17:21:06,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5957446808510638 [2024-11-20 17:21:06,788 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 172 flow. Second operand 3 states and 84 transitions. [2024-11-20 17:21:06,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 44 transitions, 210 flow [2024-11-20 17:21:06,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 44 transitions, 154 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-20 17:21:06,790 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 114 flow [2024-11-20 17:21:06,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, 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=114, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2024-11-20 17:21:06,791 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2024-11-20 17:21:06,792 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 114 flow [2024-11-20 17:21:06,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-20 17:21:06,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:06,792 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:21:06,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-20 17:21:06,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:06,993 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:06,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:06,994 INFO L85 PathProgramCache]: Analyzing trace with hash 490652386, now seen corresponding path program 1 times [2024-11-20 17:21:06,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:06,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415414453] [2024-11-20 17:21:06,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:06,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:06,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:06,996 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:06,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-20 17:21:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:07,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 17:21:07,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:21:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:07,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:21:07,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:21:07,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415414453] [2024-11-20 17:21:07,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415414453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:07,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:07,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 17:21:07,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906746990] [2024-11-20 17:21:07,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:07,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 17:21:07,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:21:07,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 17:21:07,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 17:21:07,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 47 [2024-11-20 17:21:07,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 114 flow. Second operand has 9 states, 9 states have (on average 22.88888888888889) internal successors, (206), 9 states have internal predecessors, (206), 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) [2024-11-20 17:21:07,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:07,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 47 [2024-11-20 17:21:07,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:07,986 INFO L124 PetriNetUnfolderBase]: 438/945 cut-off events. [2024-11-20 17:21:07,986 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:21:07,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 945 events. 438/945 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5200 event pairs, 68 based on Foata normal form. 8/916 useless extension candidates. Maximal degree in co-relation 1769. Up to 225 conditions per place. [2024-11-20 17:21:07,991 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 32 selfloop transitions, 4 changer transitions 24/83 dead transitions. [2024-11-20 17:21:07,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 83 transitions, 322 flow [2024-11-20 17:21:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:21:07,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:21:07,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 250 transitions. [2024-11-20 17:21:07,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5910165484633569 [2024-11-20 17:21:07,992 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 114 flow. Second operand 9 states and 250 transitions. [2024-11-20 17:21:07,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 83 transitions, 322 flow [2024-11-20 17:21:07,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 83 transitions, 321 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:21:07,994 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 131 flow [2024-11-20 17:21:07,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=131, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2024-11-20 17:21:07,996 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 9 predicate places. [2024-11-20 17:21:07,996 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 131 flow [2024-11-20 17:21:07,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.88888888888889) internal successors, (206), 9 states have internal predecessors, (206), 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) [2024-11-20 17:21:07,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:07,997 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:21:08,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-20 17:21:08,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:08,201 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:08,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:08,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1067166882, now seen corresponding path program 2 times [2024-11-20 17:21:08,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:08,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652810182] [2024-11-20 17:21:08,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 17:21:08,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:08,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:08,204 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:08,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-20 17:21:08,294 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 17:21:08,294 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:21:08,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 17:21:08,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:21:08,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:08,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:21:08,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:21:08,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652810182] [2024-11-20 17:21:08,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652810182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:08,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:08,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 17:21:08,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618992257] [2024-11-20 17:21:08,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:08,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:21:08,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:21:08,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:21:08,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:21:08,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 17:21:08,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 131 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-20 17:21:08,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:08,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 17:21:08,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:08,659 INFO L124 PetriNetUnfolderBase]: 699/1341 cut-off events. [2024-11-20 17:21:08,659 INFO L125 PetriNetUnfolderBase]: For 245/248 co-relation queries the response was YES. [2024-11-20 17:21:08,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2883 conditions, 1341 events. 699/1341 cut-off events. For 245/248 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7326 event pairs, 152 based on Foata normal form. 8/1293 useless extension candidates. Maximal degree in co-relation 2871. Up to 569 conditions per place. [2024-11-20 17:21:08,666 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 29 selfloop transitions, 1 changer transitions 22/73 dead transitions. [2024-11-20 17:21:08,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 73 transitions, 318 flow [2024-11-20 17:21:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:21:08,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:21:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 167 transitions. [2024-11-20 17:21:08,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5921985815602837 [2024-11-20 17:21:08,668 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 131 flow. Second operand 6 states and 167 transitions. [2024-11-20 17:21:08,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 73 transitions, 318 flow [2024-11-20 17:21:08,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 292 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-11-20 17:21:08,674 INFO L231 Difference]: Finished difference. Result has 59 places, 43 transitions, 128 flow [2024-11-20 17:21:08,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2024-11-20 17:21:08,675 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 7 predicate places. [2024-11-20 17:21:08,675 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 43 transitions, 128 flow [2024-11-20 17:21:08,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-20 17:21:08,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:08,676 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:21:08,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-20 17:21:08,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:08,877 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:08,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:08,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1186026380, now seen corresponding path program 3 times [2024-11-20 17:21:08,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:08,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648692549] [2024-11-20 17:21:08,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:21:08,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:08,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:08,882 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:08,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-20 17:21:08,976 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-20 17:21:08,976 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:21:08,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 17:21:08,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:21:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:09,041 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:21:09,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:21:09,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648692549] [2024-11-20 17:21:09,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648692549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:09,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:09,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 17:21:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637713514] [2024-11-20 17:21:09,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:09,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:21:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:21:09,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:21:09,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:21:09,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 47 [2024-11-20 17:21:09,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 43 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-20 17:21:09,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:09,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 47 [2024-11-20 17:21:09,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:09,340 INFO L124 PetriNetUnfolderBase]: 779/1495 cut-off events. [2024-11-20 17:21:09,340 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-20 17:21:09,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3052 conditions, 1495 events. 779/1495 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8451 event pairs, 223 based on Foata normal form. 8/1441 useless extension candidates. Maximal degree in co-relation 3040. Up to 541 conditions per place. [2024-11-20 17:21:09,348 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 24 selfloop transitions, 1 changer transitions 23/69 dead transitions. [2024-11-20 17:21:09,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 69 transitions, 285 flow [2024-11-20 17:21:09,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:21:09,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:21:09,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 163 transitions. [2024-11-20 17:21:09,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5780141843971631 [2024-11-20 17:21:09,349 INFO L175 Difference]: Start difference. First operand has 59 places, 43 transitions, 128 flow. Second operand 6 states and 163 transitions. [2024-11-20 17:21:09,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 69 transitions, 285 flow [2024-11-20 17:21:09,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 69 transitions, 274 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-20 17:21:09,352 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 132 flow [2024-11-20 17:21:09,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=132, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2024-11-20 17:21:09,352 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 9 predicate places. [2024-11-20 17:21:09,353 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 132 flow [2024-11-20 17:21:09,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-20 17:21:09,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:09,353 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:21:09,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-20 17:21:09,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:09,554 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-20 17:21:09,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:09,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1057609066, now seen corresponding path program 4 times [2024-11-20 17:21:09,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:21:09,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582470810] [2024-11-20 17:21:09,556 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 17:21:09,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:09,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:21:09,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 17:21:09,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-20 17:21:09,655 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 17:21:09,655 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-20 17:21:09,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:21:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:21:09,765 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-20 17:21:09,765 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:21:09,766 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-20 17:21:09,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-20 17:21:09,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-20 17:21:09,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-20 17:21:09,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-20 17:21:09,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-20 17:21:09,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-20 17:21:09,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-20 17:21:09,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 17:21:09,969 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-11-20 17:21:10,071 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:21:10,071 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:21:10,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:21:10 BasicIcfg [2024-11-20 17:21:10,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:21:10,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:21:10,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:21:10,081 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:21:10,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:21:02" (3/4) ... [2024-11-20 17:21:10,083 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 17:21:10,084 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:21:10,085 INFO L158 Benchmark]: Toolchain (without parser) took 8669.19ms. Allocated memory was 65.0MB in the beginning and 255.9MB in the end (delta: 190.8MB). Free memory was 42.9MB in the beginning and 76.6MB in the end (delta: -33.7MB). Peak memory consumption was 158.0MB. Max. memory is 16.1GB. [2024-11-20 17:21:10,085 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 65.0MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:21:10,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.81ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 42.7MB in the beginning and 53.9MB in the end (delta: -11.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-20 17:21:10,087 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.94ms. Allocated memory is still 86.0MB. Free memory was 53.9MB in the beginning and 51.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 17:21:10,088 INFO L158 Benchmark]: Boogie Preprocessor took 70.10ms. Allocated memory is still 86.0MB. Free memory was 51.1MB in the beginning and 47.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:21:10,088 INFO L158 Benchmark]: RCFGBuilder took 839.95ms. Allocated memory is still 86.0MB. Free memory was 47.6MB in the beginning and 36.4MB in the end (delta: 11.1MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-11-20 17:21:10,090 INFO L158 Benchmark]: TraceAbstraction took 7081.72ms. Allocated memory was 86.0MB in the beginning and 255.9MB in the end (delta: 169.9MB). Free memory was 35.9MB in the beginning and 76.6MB in the end (delta: -40.7MB). Peak memory consumption was 129.8MB. Max. memory is 16.1GB. [2024-11-20 17:21:10,090 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 255.9MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:21:10,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 65.0MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.81ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 42.7MB in the beginning and 53.9MB in the end (delta: -11.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.94ms. Allocated memory is still 86.0MB. Free memory was 53.9MB in the beginning and 51.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.10ms. Allocated memory is still 86.0MB. Free memory was 51.1MB in the beginning and 47.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 839.95ms. Allocated memory is still 86.0MB. Free memory was 47.6MB in the beginning and 36.4MB in the end (delta: 11.1MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7081.72ms. Allocated memory was 86.0MB in the beginning and 255.9MB in the end (delta: 169.9MB). Free memory was 35.9MB in the beginning and 76.6MB in the end (delta: -40.7MB). Peak memory consumption was 129.8MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 255.9MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p0_EBX = 0; [L715] 0 int __unbuffered_p1_EAX = 0; [L717] 0 int __unbuffered_p2_EAX = 0; [L719] 0 int __unbuffered_p2_EBX = 0; [L721] 0 int a = 0; [L722] 0 _Bool a$flush_delayed; [L723] 0 int a$mem_tmp; [L724] 0 _Bool a$r_buff0_thd0; [L725] 0 _Bool a$r_buff0_thd1; [L726] 0 _Bool a$r_buff0_thd2; [L727] 0 _Bool a$r_buff0_thd3; [L728] 0 _Bool a$r_buff1_thd0; [L729] 0 _Bool a$r_buff1_thd1; [L730] 0 _Bool a$r_buff1_thd2; [L731] 0 _Bool a$r_buff1_thd3; [L732] 0 _Bool a$read_delayed; [L733] 0 int *a$read_delayed_var; [L734] 0 int a$w_buff0; [L735] 0 _Bool a$w_buff0_used; [L736] 0 int a$w_buff1; [L737] 0 _Bool a$w_buff1_used; [L738] 0 _Bool main$tmp_guard0; [L739] 0 _Bool main$tmp_guard1; [L741] 0 int x = 0; [L743] 0 int y = 0; [L745] 0 int z = 0; [L746] 0 _Bool weak$$choice0; [L747] 0 _Bool weak$$choice2; [L850] 0 pthread_t t385; [L851] FCALL, FORK 0 pthread_create(&t385, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t385=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L751] 1 a$w_buff1 = a$w_buff0 [L752] 1 a$w_buff0 = 1 [L753] 1 a$w_buff1_used = a$w_buff0_used [L754] 1 a$w_buff0_used = (_Bool)1 [L755] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L755] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L756] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L757] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L758] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L759] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L760] 1 a$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L852] 0 pthread_t t386; [L853] FCALL, FORK 0 pthread_create(&t386, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t385=0, t386=1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L763] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L766] 1 __unbuffered_p0_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L769] 1 __unbuffered_p0_EBX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L786] 2 y = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L789] 2 __unbuffered_p1_EAX = z VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L854] 0 pthread_t t387; [L855] FCALL, FORK 0 pthread_create(&t387, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t385=0, t386=1, t387=2, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L792] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L793] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L794] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L795] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L796] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L799] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L806] 3 z = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L809] 3 __unbuffered_p2_EAX = z VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L812] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L813] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L814] 3 a$flush_delayed = weak$$choice2 [L815] 3 a$mem_tmp = a [L816] 3 a = !a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff1) [L817] 3 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : a$w_buff0)) [L818] 3 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff1 : a$w_buff1)) [L819] 3 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used)) [L820] 3 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L821] 3 a$r_buff0_thd3 = weak$$choice2 ? a$r_buff0_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff0_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3)) [L822] 3 a$r_buff1_thd3 = weak$$choice2 ? a$r_buff1_thd3 : (!a$w_buff0_used || !a$r_buff0_thd3 && !a$w_buff1_used || !a$r_buff0_thd3 && !a$r_buff1_thd3 ? a$r_buff1_thd3 : (a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L823] 3 __unbuffered_p2_EBX = a [L824] 3 a = a$flush_delayed ? a$mem_tmp : a [L825] 3 a$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L772] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L773] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L774] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L775] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L776] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L779] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L828] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L829] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L830] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L831] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L832] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L835] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L857] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t385=0, t386=1, t387=2, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L859] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L859] RET 0 assume_abort_if_not(main$tmp_guard0) [L861] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L862] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L863] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L864] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L865] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t385=0, t386=1, t387=2, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L868] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t385=0, t386=1, t387=2, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L870] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] [L17] 0 __assert_fail ("0", "mix015.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 74 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 315 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1112 IncrementalHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 10 mSDtfsCounter, 1112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=4, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 749 SizeOfPredicates, 14 NumberOfNonLiveVariables, 898 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-20 17:21:10,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample