./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe014_rmo.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 bb32390c6e08fa980f308e05dcc5f75aadd246c70ded8fbe4d875fa3ae4239fa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:00:15,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:00:15,297 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:00:15,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:00:15,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:00:15,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:00:15,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:00:15,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:00:15,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:00:15,333 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:00:15,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:00:15,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:00:15,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:00:15,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:00:15,337 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:00:15,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:00:15,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:00:15,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:00:15,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:00:15,338 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:00:15,338 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:00:15,340 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:00:15,340 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:00:15,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:00:15,341 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:00:15,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:00:15,341 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:00:15,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:00:15,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:00:15,342 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:00:15,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:00:15,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:00:15,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:00:15,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:00:15,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:00:15,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:00:15,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:00:15,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:00:15,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:00:15,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:00:15,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:00:15,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:00:15,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb32390c6e08fa980f308e05dcc5f75aadd246c70ded8fbe4d875fa3ae4239fa [2024-11-10 18:00:15,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:00:15,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:00:15,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:00:15,866 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:00:15,867 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:00:15,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i [2024-11-10 18:00:17,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:00:18,114 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:00:18,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i [2024-11-10 18:00:18,125 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299a61d1a/774906aefc844d2999b440aafcbcf0f1/FLAGc693d6b92 [2024-11-10 18:00:18,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299a61d1a/774906aefc844d2999b440aafcbcf0f1 [2024-11-10 18:00:18,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:00:18,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:00:18,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:00:18,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:00:18,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:00:18,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:00:18" (1/1) ... [2024-11-10 18:00:18,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5288da00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:18, skipping insertion in model container [2024-11-10 18:00:18,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:00:18" (1/1) ... [2024-11-10 18:00:18,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:00:19,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:00:19,141 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:00:19,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:00:19,309 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:00:19,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19 WrapperNode [2024-11-10 18:00:19,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:00:19,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:00:19,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:00:19,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:00:19,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,358 INFO L138 Inliner]: procedures = 175, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 127 [2024-11-10 18:00:19,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:00:19,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:00:19,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:00:19,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:00:19,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,376 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,402 INFO L175 MemorySlicer]: Split 15 memory accesses to 2 slices as follows [2, 13]. 87 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 5 writes are split as follows [0, 5]. [2024-11-10 18:00:19,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,412 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:00:19,431 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:00:19,431 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:00:19,431 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:00:19,433 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (1/1) ... [2024-11-10 18:00:19,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:00:19,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:00:19,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:00:19,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:00:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 18:00:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 18:00:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 18:00:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 18:00:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 18:00:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:00:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 18:00:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 18:00:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 18:00:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 18:00:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 18:00:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 18:00:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:00:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:00:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 18:00:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:00:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:00:19,525 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:00:19,736 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:00:19,740 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:00:20,006 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:00:20,007 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:00:20,513 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:00:20,518 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:00:20,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:00:20 BoogieIcfgContainer [2024-11-10 18:00:20,519 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:00:20,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:00:20,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:00:20,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:00:20,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:00:18" (1/3) ... [2024-11-10 18:00:20,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6a4870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:00:20, skipping insertion in model container [2024-11-10 18:00:20,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:19" (2/3) ... [2024-11-10 18:00:20,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6a4870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:00:20, skipping insertion in model container [2024-11-10 18:00:20,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:00:20" (3/3) ... [2024-11-10 18:00:20,537 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_rmo.oepc.i [2024-11-10 18:00:20,570 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:00:20,573 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-11-10 18:00:20,573 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:00:20,758 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 18:00:20,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 67 transitions, 146 flow [2024-11-10 18:00:20,902 INFO L124 PetriNetUnfolderBase]: 2/64 cut-off events. [2024-11-10 18:00:20,902 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:20,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 208 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2024-11-10 18:00:20,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 67 transitions, 146 flow [2024-11-10 18:00:20,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 64 transitions, 137 flow [2024-11-10 18:00:20,940 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:00:20,953 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;@1791f1e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:00:20,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-10 18:00:20,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:00:20,968 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-10 18:00:20,968 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:20,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:20,969 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:00:20,969 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:20,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:20,979 INFO L85 PathProgramCache]: Analyzing trace with hash 17790911, now seen corresponding path program 1 times [2024-11-10 18:00:21,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:21,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600550506] [2024-11-10 18:00:21,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:21,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:21,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:21,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600550506] [2024-11-10 18:00:21,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600550506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:21,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:21,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:00:21,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075109115] [2024-11-10 18:00:21,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:21,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:00:21,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:21,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:00:21,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:00:21,330 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:21,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 64 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:21,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:21,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:21,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:24,317 INFO L124 PetriNetUnfolderBase]: 13427/20344 cut-off events. [2024-11-10 18:00:24,317 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-10 18:00:24,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39267 conditions, 20344 events. 13427/20344 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 136671 event pairs, 13427 based on Foata normal form. 756/17048 useless extension candidates. Maximal degree in co-relation 39256. Up to 18818 conditions per place. [2024-11-10 18:00:24,423 INFO L140 encePairwiseOnDemand]: 48/67 looper letters, 37 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2024-11-10 18:00:24,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 45 transitions, 175 flow [2024-11-10 18:00:24,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:00:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:00:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-10 18:00:24,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42786069651741293 [2024-11-10 18:00:24,434 INFO L175 Difference]: Start difference. First operand has 72 places, 64 transitions, 137 flow. Second operand 3 states and 86 transitions. [2024-11-10 18:00:24,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 45 transitions, 175 flow [2024-11-10 18:00:24,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 45 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:00:24,439 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 98 flow [2024-11-10 18:00:24,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2024-11-10 18:00:24,443 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -18 predicate places. [2024-11-10 18:00:24,443 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 98 flow [2024-11-10 18:00:24,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:24,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:24,444 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:00:24,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:00:24,444 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:24,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:24,445 INFO L85 PathProgramCache]: Analyzing trace with hash 17790912, now seen corresponding path program 1 times [2024-11-10 18:00:24,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:24,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018898233] [2024-11-10 18:00:24,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:24,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:24,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:24,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018898233] [2024-11-10 18:00:24,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018898233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:24,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:24,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:00:24,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580170635] [2024-11-10 18:00:24,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:24,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:00:24,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:24,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:00:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:00:24,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:24,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:24,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:24,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:24,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:25,518 INFO L124 PetriNetUnfolderBase]: 6395/9947 cut-off events. [2024-11-10 18:00:25,519 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:25,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19109 conditions, 9947 events. 6395/9947 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 61751 event pairs, 6395 based on Foata normal form. 0/9510 useless extension candidates. Maximal degree in co-relation 19103. Up to 9072 conditions per place. [2024-11-10 18:00:25,589 INFO L140 encePairwiseOnDemand]: 60/67 looper letters, 30 selfloop transitions, 1 changer transitions 1/39 dead transitions. [2024-11-10 18:00:25,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 39 transitions, 150 flow [2024-11-10 18:00:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:00:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:00:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-11-10 18:00:25,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3383084577114428 [2024-11-10 18:00:25,592 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 98 flow. Second operand 3 states and 68 transitions. [2024-11-10 18:00:25,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 39 transitions, 150 flow [2024-11-10 18:00:25,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 39 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:00:25,594 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 85 flow [2024-11-10 18:00:25,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2024-11-10 18:00:25,595 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -23 predicate places. [2024-11-10 18:00:25,597 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 85 flow [2024-11-10 18:00:25,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:25,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:25,597 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:25,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:00:25,597 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:25,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:25,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1821246193, now seen corresponding path program 1 times [2024-11-10 18:00:25,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:25,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161135305] [2024-11-10 18:00:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:25,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:25,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:25,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161135305] [2024-11-10 18:00:25,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161135305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:25,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:25,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:00:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849669963] [2024-11-10 18:00:25,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:25,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:00:25,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:25,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:00:25,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:00:25,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:25,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:25,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:25,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:25,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:26,423 INFO L124 PetriNetUnfolderBase]: 5663/8200 cut-off events. [2024-11-10 18:00:26,423 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:26,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16343 conditions, 8200 events. 5663/8200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 46891 event pairs, 803 based on Foata normal form. 0/7839 useless extension candidates. Maximal degree in co-relation 16336. Up to 7199 conditions per place. [2024-11-10 18:00:26,458 INFO L140 encePairwiseOnDemand]: 63/67 looper letters, 51 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-11-10 18:00:26,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 60 transitions, 239 flow [2024-11-10 18:00:26,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:00:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:00:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-11-10 18:00:26,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4228855721393035 [2024-11-10 18:00:26,462 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 85 flow. Second operand 3 states and 85 transitions. [2024-11-10 18:00:26,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 60 transitions, 239 flow [2024-11-10 18:00:26,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:00:26,464 INFO L231 Difference]: Finished difference. Result has 50 places, 38 transitions, 94 flow [2024-11-10 18:00:26,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=50, PETRI_TRANSITIONS=38} [2024-11-10 18:00:26,465 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -22 predicate places. [2024-11-10 18:00:26,466 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 94 flow [2024-11-10 18:00:26,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:26,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:26,466 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:26,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:00:26,466 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:26,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash -226610170, now seen corresponding path program 1 times [2024-11-10 18:00:26,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:26,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739572400] [2024-11-10 18:00:26,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:26,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:26,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:26,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739572400] [2024-11-10 18:00:26,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739572400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:26,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:26,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:00:26,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698484948] [2024-11-10 18:00:26,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:26,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:00:26,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:26,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:00:26,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:00:26,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:26,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:26,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:26,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:26,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:27,171 INFO L124 PetriNetUnfolderBase]: 5219/7576 cut-off events. [2024-11-10 18:00:27,172 INFO L125 PetriNetUnfolderBase]: For 482/482 co-relation queries the response was YES. [2024-11-10 18:00:27,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15953 conditions, 7576 events. 5219/7576 cut-off events. For 482/482 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 43093 event pairs, 659 based on Foata normal form. 0/7575 useless extension candidates. Maximal degree in co-relation 15944. Up to 6574 conditions per place. [2024-11-10 18:00:27,201 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 50 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2024-11-10 18:00:27,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 242 flow [2024-11-10 18:00:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:00:27,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:00:27,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-11-10 18:00:27,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34701492537313433 [2024-11-10 18:00:27,203 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 94 flow. Second operand 4 states and 93 transitions. [2024-11-10 18:00:27,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 242 flow [2024-11-10 18:00:27,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:00:27,205 INFO L231 Difference]: Finished difference. Result has 50 places, 37 transitions, 90 flow [2024-11-10 18:00:27,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2024-11-10 18:00:27,206 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -22 predicate places. [2024-11-10 18:00:27,206 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 90 flow [2024-11-10 18:00:27,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:27,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:27,206 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:27,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:00:27,207 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:27,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:27,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2128992955, now seen corresponding path program 1 times [2024-11-10 18:00:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:27,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140757646] [2024-11-10 18:00:27,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:27,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:27,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:27,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140757646] [2024-11-10 18:00:27,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140757646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:27,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:27,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:00:27,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647478907] [2024-11-10 18:00:27,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:27,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:00:27,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:27,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:00:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:00:27,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:27,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:27,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:27,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:27,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:27,801 INFO L124 PetriNetUnfolderBase]: 4775/6952 cut-off events. [2024-11-10 18:00:27,801 INFO L125 PetriNetUnfolderBase]: For 482/482 co-relation queries the response was YES. [2024-11-10 18:00:27,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14525 conditions, 6952 events. 4775/6952 cut-off events. For 482/482 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 39402 event pairs, 515 based on Foata normal form. 180/7131 useless extension candidates. Maximal degree in co-relation 14516. Up to 5950 conditions per place. [2024-11-10 18:00:27,825 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 49 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2024-11-10 18:00:27,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 58 transitions, 236 flow [2024-11-10 18:00:27,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:00:27,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:00:27,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2024-11-10 18:00:27,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34328358208955223 [2024-11-10 18:00:27,826 INFO L175 Difference]: Start difference. First operand has 50 places, 37 transitions, 90 flow. Second operand 4 states and 92 transitions. [2024-11-10 18:00:27,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 58 transitions, 236 flow [2024-11-10 18:00:27,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 231 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:00:27,828 INFO L231 Difference]: Finished difference. Result has 49 places, 36 transitions, 85 flow [2024-11-10 18:00:27,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2024-11-10 18:00:27,828 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -23 predicate places. [2024-11-10 18:00:27,829 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 85 flow [2024-11-10 18:00:27,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:27,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:27,829 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:27,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:00:27,829 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:27,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:27,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1609711264, now seen corresponding path program 1 times [2024-11-10 18:00:27,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:27,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043384507] [2024-11-10 18:00:27,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:27,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:27,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:27,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043384507] [2024-11-10 18:00:27,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043384507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:27,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:27,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:00:27,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57038204] [2024-11-10 18:00:27,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:27,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:00:27,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:27,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:00:27,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:00:27,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:27,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:27,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:27,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:27,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:28,501 INFO L124 PetriNetUnfolderBase]: 4775/7463 cut-off events. [2024-11-10 18:00:28,502 INFO L125 PetriNetUnfolderBase]: For 338/338 co-relation queries the response was YES. [2024-11-10 18:00:28,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15035 conditions, 7463 events. 4775/7463 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 44192 event pairs, 4775 based on Foata normal form. 216/7674 useless extension candidates. Maximal degree in co-relation 15027. Up to 6804 conditions per place. [2024-11-10 18:00:28,527 INFO L140 encePairwiseOnDemand]: 65/67 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-10 18:00:28,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 35 transitions, 141 flow [2024-11-10 18:00:28,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:00:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:00:28,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-11-10 18:00:28,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2835820895522388 [2024-11-10 18:00:28,529 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 85 flow. Second operand 3 states and 57 transitions. [2024-11-10 18:00:28,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 35 transitions, 141 flow [2024-11-10 18:00:28,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 35 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:00:28,530 INFO L231 Difference]: Finished difference. Result has 48 places, 34 transitions, 80 flow [2024-11-10 18:00:28,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2024-11-10 18:00:28,531 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -24 predicate places. [2024-11-10 18:00:28,531 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 80 flow [2024-11-10 18:00:28,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:28,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:28,532 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:28,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:00:28,532 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:28,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:28,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1609709857, now seen corresponding path program 1 times [2024-11-10 18:00:28,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:28,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652401077] [2024-11-10 18:00:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:28,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:28,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:28,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:28,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652401077] [2024-11-10 18:00:28,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652401077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:28,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:28,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:00:28,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354695928] [2024-11-10 18:00:28,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:28,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:00:28,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:28,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:00:28,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:00:28,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:28,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 34 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:28,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:28,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:28,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:29,690 INFO L124 PetriNetUnfolderBase]: 5831/8735 cut-off events. [2024-11-10 18:00:29,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:29,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18035 conditions, 8735 events. 5831/8735 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 49972 event pairs, 827 based on Foata normal form. 0/8550 useless extension candidates. Maximal degree in co-relation 18027. Up to 4993 conditions per place. [2024-11-10 18:00:29,752 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 40 selfloop transitions, 2 changer transitions 70/117 dead transitions. [2024-11-10 18:00:29,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 117 transitions, 482 flow [2024-11-10 18:00:29,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:00:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:00:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 186 transitions. [2024-11-10 18:00:29,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34701492537313433 [2024-11-10 18:00:29,755 INFO L175 Difference]: Start difference. First operand has 48 places, 34 transitions, 80 flow. Second operand 8 states and 186 transitions. [2024-11-10 18:00:29,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 117 transitions, 482 flow [2024-11-10 18:00:29,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 117 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:00:29,757 INFO L231 Difference]: Finished difference. Result has 58 places, 33 transitions, 93 flow [2024-11-10 18:00:29,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=93, PETRI_PLACES=58, PETRI_TRANSITIONS=33} [2024-11-10 18:00:29,766 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2024-11-10 18:00:29,766 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 33 transitions, 93 flow [2024-11-10 18:00:29,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:29,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:29,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:29,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:00:29,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:29,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash 2086288702, now seen corresponding path program 1 times [2024-11-10 18:00:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:29,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235845109] [2024-11-10 18:00:29,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:30,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:30,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235845109] [2024-11-10 18:00:30,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235845109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:30,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:30,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:00:30,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83352143] [2024-11-10 18:00:30,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:30,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:30,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:30,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:30,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:30,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:30,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 33 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:30,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:30,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:30,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:31,401 INFO L124 PetriNetUnfolderBase]: 6273/9305 cut-off events. [2024-11-10 18:00:31,402 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-11-10 18:00:31,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20959 conditions, 9305 events. 6273/9305 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 51828 event pairs, 645 based on Foata normal form. 180/9481 useless extension candidates. Maximal degree in co-relation 20945. Up to 4121 conditions per place. [2024-11-10 18:00:31,464 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 49 selfloop transitions, 3 changer transitions 59/116 dead transitions. [2024-11-10 18:00:31,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 116 transitions, 510 flow [2024-11-10 18:00:31,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:00:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:00:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2024-11-10 18:00:31,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3451492537313433 [2024-11-10 18:00:31,469 INFO L175 Difference]: Start difference. First operand has 58 places, 33 transitions, 93 flow. Second operand 8 states and 185 transitions. [2024-11-10 18:00:31,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 116 transitions, 510 flow [2024-11-10 18:00:31,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 116 transitions, 488 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-10 18:00:31,603 INFO L231 Difference]: Finished difference. Result has 59 places, 33 transitions, 103 flow [2024-11-10 18:00:31,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=103, PETRI_PLACES=59, PETRI_TRANSITIONS=33} [2024-11-10 18:00:31,603 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2024-11-10 18:00:31,603 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 33 transitions, 103 flow [2024-11-10 18:00:31,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:31,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:31,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:31,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:00:31,608 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:31,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:31,608 INFO L85 PathProgramCache]: Analyzing trace with hash 682156679, now seen corresponding path program 1 times [2024-11-10 18:00:31,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:31,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079372118] [2024-11-10 18:00:31,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:31,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:31,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:31,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079372118] [2024-11-10 18:00:31,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079372118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:31,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:31,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:00:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545173433] [2024-11-10 18:00:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:31,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:00:31,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:31,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:00:31,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:00:31,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:31,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 33 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:31,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:31,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:31,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:32,550 INFO L124 PetriNetUnfolderBase]: 3688/5614 cut-off events. [2024-11-10 18:00:32,550 INFO L125 PetriNetUnfolderBase]: For 1626/1626 co-relation queries the response was YES. [2024-11-10 18:00:32,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13399 conditions, 5614 events. 3688/5614 cut-off events. For 1626/1626 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 30269 event pairs, 1874 based on Foata normal form. 150/5760 useless extension candidates. Maximal degree in co-relation 13383. Up to 3946 conditions per place. [2024-11-10 18:00:32,585 INFO L140 encePairwiseOnDemand]: 62/67 looper letters, 42 selfloop transitions, 2 changer transitions 47/96 dead transitions. [2024-11-10 18:00:32,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 96 transitions, 441 flow [2024-11-10 18:00:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:00:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:00:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2024-11-10 18:00:32,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3326226012793177 [2024-11-10 18:00:32,589 INFO L175 Difference]: Start difference. First operand has 59 places, 33 transitions, 103 flow. Second operand 7 states and 156 transitions. [2024-11-10 18:00:32,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 96 transitions, 441 flow [2024-11-10 18:00:32,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 96 transitions, 407 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-11-10 18:00:32,637 INFO L231 Difference]: Finished difference. Result has 58 places, 33 transitions, 99 flow [2024-11-10 18:00:32,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=99, PETRI_PLACES=58, PETRI_TRANSITIONS=33} [2024-11-10 18:00:32,642 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2024-11-10 18:00:32,642 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 33 transitions, 99 flow [2024-11-10 18:00:32,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:32,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:32,642 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] [2024-11-10 18:00:32,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 18:00:32,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:32,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2046801299, now seen corresponding path program 1 times [2024-11-10 18:00:32,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:32,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944522728] [2024-11-10 18:00:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:33,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:33,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944522728] [2024-11-10 18:00:33,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944522728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:33,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:33,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:00:33,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867754160] [2024-11-10 18:00:33,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:33,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:00:33,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:33,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:00:33,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:00:33,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:33,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 33 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:33,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:33,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:33,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:33,472 INFO L124 PetriNetUnfolderBase]: 3397/5156 cut-off events. [2024-11-10 18:00:33,472 INFO L125 PetriNetUnfolderBase]: For 1461/1461 co-relation queries the response was YES. [2024-11-10 18:00:33,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12122 conditions, 5156 events. 3397/5156 cut-off events. For 1461/1461 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 27198 event pairs, 470 based on Foata normal form. 120/5275 useless extension candidates. Maximal degree in co-relation 12108. Up to 3841 conditions per place. [2024-11-10 18:00:33,493 INFO L140 encePairwiseOnDemand]: 62/67 looper letters, 44 selfloop transitions, 2 changer transitions 41/92 dead transitions. [2024-11-10 18:00:33,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 92 transitions, 420 flow [2024-11-10 18:00:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:00:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:00:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 152 transitions. [2024-11-10 18:00:33,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32409381663113007 [2024-11-10 18:00:33,494 INFO L175 Difference]: Start difference. First operand has 58 places, 33 transitions, 99 flow. Second operand 7 states and 152 transitions. [2024-11-10 18:00:33,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 92 transitions, 420 flow [2024-11-10 18:00:33,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 92 transitions, 396 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-10 18:00:33,508 INFO L231 Difference]: Finished difference. Result has 59 places, 33 transitions, 103 flow [2024-11-10 18:00:33,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=103, PETRI_PLACES=59, PETRI_TRANSITIONS=33} [2024-11-10 18:00:33,509 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2024-11-10 18:00:33,509 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 33 transitions, 103 flow [2024-11-10 18:00:33,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:33,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:33,509 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] [2024-11-10 18:00:33,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 18:00:33,510 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:33,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:33,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1472013276, now seen corresponding path program 1 times [2024-11-10 18:00:33,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:33,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931854085] [2024-11-10 18:00:33,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:33,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:33,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:33,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931854085] [2024-11-10 18:00:33,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931854085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:33,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:33,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:00:33,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217268403] [2024-11-10 18:00:33,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:33,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:33,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:33,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:33,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:33,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:33,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 33 transitions, 103 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:33,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:33,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:33,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:34,344 INFO L124 PetriNetUnfolderBase]: 4705/7031 cut-off events. [2024-11-10 18:00:34,344 INFO L125 PetriNetUnfolderBase]: For 1911/1911 co-relation queries the response was YES. [2024-11-10 18:00:34,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16611 conditions, 7031 events. 4705/7031 cut-off events. For 1911/1911 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 37299 event pairs, 2459 based on Foata normal form. 100/7127 useless extension candidates. Maximal degree in co-relation 16595. Up to 3583 conditions per place. [2024-11-10 18:00:34,366 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 37 selfloop transitions, 2 changer transitions 55/99 dead transitions. [2024-11-10 18:00:34,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 99 transitions, 453 flow [2024-11-10 18:00:34,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:00:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:00:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 158 transitions. [2024-11-10 18:00:34,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3368869936034115 [2024-11-10 18:00:34,368 INFO L175 Difference]: Start difference. First operand has 59 places, 33 transitions, 103 flow. Second operand 7 states and 158 transitions. [2024-11-10 18:00:34,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 99 transitions, 453 flow [2024-11-10 18:00:34,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 99 transitions, 431 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 18:00:34,383 INFO L231 Difference]: Finished difference. Result has 59 places, 33 transitions, 105 flow [2024-11-10 18:00:34,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=105, PETRI_PLACES=59, PETRI_TRANSITIONS=33} [2024-11-10 18:00:34,384 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2024-11-10 18:00:34,384 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 33 transitions, 105 flow [2024-11-10 18:00:34,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:34,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:34,385 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] [2024-11-10 18:00:34,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 18:00:34,385 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:34,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:34,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1621311874, now seen corresponding path program 2 times [2024-11-10 18:00:34,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:34,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959503681] [2024-11-10 18:00:34,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:34,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:34,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:34,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959503681] [2024-11-10 18:00:34,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959503681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:34,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:34,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:00:34,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994501792] [2024-11-10 18:00:34,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:34,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 18:00:34,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 18:00:34,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:00:34,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:34,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 33 transitions, 105 flow. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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) [2024-11-10 18:00:34,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:34,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:34,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:35,443 INFO L124 PetriNetUnfolderBase]: 2767/4236 cut-off events. [2024-11-10 18:00:35,443 INFO L125 PetriNetUnfolderBase]: For 1793/1793 co-relation queries the response was YES. [2024-11-10 18:00:35,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9949 conditions, 4236 events. 2767/4236 cut-off events. For 1793/1793 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 21055 event pairs, 241 based on Foata normal form. 100/4335 useless extension candidates. Maximal degree in co-relation 9934. Up to 2417 conditions per place. [2024-11-10 18:00:35,459 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 51 selfloop transitions, 4 changer transitions 39/99 dead transitions. [2024-11-10 18:00:35,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 99 transitions, 457 flow [2024-11-10 18:00:35,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:00:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 18:00:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2024-11-10 18:00:35,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31343283582089554 [2024-11-10 18:00:35,460 INFO L175 Difference]: Start difference. First operand has 59 places, 33 transitions, 105 flow. Second operand 8 states and 168 transitions. [2024-11-10 18:00:35,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 99 transitions, 457 flow [2024-11-10 18:00:35,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 99 transitions, 429 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-10 18:00:35,466 INFO L231 Difference]: Finished difference. Result has 62 places, 35 transitions, 123 flow [2024-11-10 18:00:35,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=35} [2024-11-10 18:00:35,466 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -10 predicate places. [2024-11-10 18:00:35,467 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 35 transitions, 123 flow [2024-11-10 18:00:35,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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) [2024-11-10 18:00:35,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:35,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:35,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 18:00:35,467 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:35,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:35,468 INFO L85 PathProgramCache]: Analyzing trace with hash -411882314, now seen corresponding path program 1 times [2024-11-10 18:00:35,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:35,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143994002] [2024-11-10 18:00:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:35,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:35,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:35,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143994002] [2024-11-10 18:00:35,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143994002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:35,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:35,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:00:35,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904813799] [2024-11-10 18:00:35,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:35,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:00:35,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:35,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:00:35,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:00:35,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:35,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 35 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:35,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:35,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:35,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:35,827 INFO L124 PetriNetUnfolderBase]: 2187/3439 cut-off events. [2024-11-10 18:00:35,827 INFO L125 PetriNetUnfolderBase]: For 1062/1062 co-relation queries the response was YES. [2024-11-10 18:00:35,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8477 conditions, 3439 events. 2187/3439 cut-off events. For 1062/1062 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 17443 event pairs, 337 based on Foata normal form. 156/3592 useless extension candidates. Maximal degree in co-relation 8459. Up to 1771 conditions per place. [2024-11-10 18:00:35,838 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 61 selfloop transitions, 5 changer transitions 1/72 dead transitions. [2024-11-10 18:00:35,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 72 transitions, 385 flow [2024-11-10 18:00:35,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:00:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:00:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-11-10 18:00:35,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3843283582089552 [2024-11-10 18:00:35,839 INFO L175 Difference]: Start difference. First operand has 62 places, 35 transitions, 123 flow. Second operand 4 states and 103 transitions. [2024-11-10 18:00:35,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 72 transitions, 385 flow [2024-11-10 18:00:35,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 72 transitions, 370 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-10 18:00:35,843 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 146 flow [2024-11-10 18:00:35,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-11-10 18:00:35,843 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2024-11-10 18:00:35,844 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 146 flow [2024-11-10 18:00:35,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:35,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:35,844 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] [2024-11-10 18:00:35,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 18:00:35,844 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:35,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:35,844 INFO L85 PathProgramCache]: Analyzing trace with hash 277395953, now seen corresponding path program 1 times [2024-11-10 18:00:35,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:35,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164183852] [2024-11-10 18:00:35,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:35,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:35,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:35,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164183852] [2024-11-10 18:00:35,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164183852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:35,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:35,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:00:35,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716065530] [2024-11-10 18:00:35,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:35,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:00:35,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:36,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:00:36,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:00:36,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:36,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:36,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:36,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:36,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:36,215 INFO L124 PetriNetUnfolderBase]: 1405/2253 cut-off events. [2024-11-10 18:00:36,215 INFO L125 PetriNetUnfolderBase]: For 1118/1118 co-relation queries the response was YES. [2024-11-10 18:00:36,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6062 conditions, 2253 events. 1405/2253 cut-off events. For 1118/1118 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10390 event pairs, 209 based on Foata normal form. 116/2366 useless extension candidates. Maximal degree in co-relation 6045. Up to 733 conditions per place. [2024-11-10 18:00:36,223 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 70 selfloop transitions, 8 changer transitions 1/84 dead transitions. [2024-11-10 18:00:36,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 462 flow [2024-11-10 18:00:36,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:00:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:00:36,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-11-10 18:00:36,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37910447761194027 [2024-11-10 18:00:36,224 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 146 flow. Second operand 5 states and 127 transitions. [2024-11-10 18:00:36,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 462 flow [2024-11-10 18:00:36,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 84 transitions, 452 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 18:00:36,227 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 186 flow [2024-11-10 18:00:36,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2024-11-10 18:00:36,227 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -10 predicate places. [2024-11-10 18:00:36,227 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 186 flow [2024-11-10 18:00:36,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:36,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:36,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:36,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 18:00:36,228 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:36,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:36,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1618835010, now seen corresponding path program 1 times [2024-11-10 18:00:36,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:36,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261092065] [2024-11-10 18:00:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:36,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:36,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:36,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261092065] [2024-11-10 18:00:36,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261092065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:36,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:36,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:00:36,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569150645] [2024-11-10 18:00:36,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:36,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:36,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:36,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:36,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:36,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:36,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:36,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:36,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:36,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:36,592 INFO L124 PetriNetUnfolderBase]: 871/1391 cut-off events. [2024-11-10 18:00:36,593 INFO L125 PetriNetUnfolderBase]: For 1320/1320 co-relation queries the response was YES. [2024-11-10 18:00:36,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4114 conditions, 1391 events. 871/1391 cut-off events. For 1320/1320 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5756 event pairs, 183 based on Foata normal form. 48/1436 useless extension candidates. Maximal degree in co-relation 4095. Up to 484 conditions per place. [2024-11-10 18:00:36,598 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 61 selfloop transitions, 11 changer transitions 1/78 dead transitions. [2024-11-10 18:00:36,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 450 flow [2024-11-10 18:00:36,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:00:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:00:36,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 131 transitions. [2024-11-10 18:00:36,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32587064676616917 [2024-11-10 18:00:36,599 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 186 flow. Second operand 6 states and 131 transitions. [2024-11-10 18:00:36,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 450 flow [2024-11-10 18:00:36,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 78 transitions, 404 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-10 18:00:36,603 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 187 flow [2024-11-10 18:00:36,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=187, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2024-11-10 18:00:36,603 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -10 predicate places. [2024-11-10 18:00:36,603 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 187 flow [2024-11-10 18:00:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:36,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:36,604 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] [2024-11-10 18:00:36,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 18:00:36,604 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:36,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:36,604 INFO L85 PathProgramCache]: Analyzing trace with hash -188390195, now seen corresponding path program 1 times [2024-11-10 18:00:36,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:36,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725496699] [2024-11-10 18:00:36,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:36,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:36,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:36,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:36,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725496699] [2024-11-10 18:00:36,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725496699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:36,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:36,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:00:36,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267121225] [2024-11-10 18:00:36,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:36,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:36,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:36,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:36,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:36,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:36,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:36,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:36,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:36,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:36,996 INFO L124 PetriNetUnfolderBase]: 1271/2023 cut-off events. [2024-11-10 18:00:36,996 INFO L125 PetriNetUnfolderBase]: For 2006/2006 co-relation queries the response was YES. [2024-11-10 18:00:36,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5726 conditions, 2023 events. 1271/2023 cut-off events. For 2006/2006 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8868 event pairs, 785 based on Foata normal form. 8/2027 useless extension candidates. Maximal degree in co-relation 5709. Up to 1171 conditions per place. [2024-11-10 18:00:37,003 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 41 selfloop transitions, 2 changer transitions 39/87 dead transitions. [2024-11-10 18:00:37,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 87 transitions, 543 flow [2024-11-10 18:00:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:00:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:00:37,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-11-10 18:00:37,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2814498933901919 [2024-11-10 18:00:37,004 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 187 flow. Second operand 7 states and 132 transitions. [2024-11-10 18:00:37,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 87 transitions, 543 flow [2024-11-10 18:00:37,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 87 transitions, 426 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-11-10 18:00:37,009 INFO L231 Difference]: Finished difference. Result has 64 places, 41 transitions, 145 flow [2024-11-10 18:00:37,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=145, PETRI_PLACES=64, PETRI_TRANSITIONS=41} [2024-11-10 18:00:37,010 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2024-11-10 18:00:37,010 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 41 transitions, 145 flow [2024-11-10 18:00:37,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:37,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:37,010 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] [2024-11-10 18:00:37,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 18:00:37,011 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:37,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:37,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1830770499, now seen corresponding path program 2 times [2024-11-10 18:00:37,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:37,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470874552] [2024-11-10 18:00:37,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:37,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:37,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:00:37,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470874552] [2024-11-10 18:00:37,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470874552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:37,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:37,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:00:37,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141377902] [2024-11-10 18:00:37,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:37,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:37,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:00:37,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:37,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:37,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:37,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 41 transitions, 145 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:37,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:37,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:37,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:37,393 INFO L124 PetriNetUnfolderBase]: 1243/1977 cut-off events. [2024-11-10 18:00:37,393 INFO L125 PetriNetUnfolderBase]: For 711/714 co-relation queries the response was YES. [2024-11-10 18:00:37,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4945 conditions, 1977 events. 1243/1977 cut-off events. For 711/714 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 8799 event pairs, 303 based on Foata normal form. 8/1982 useless extension candidates. Maximal degree in co-relation 4929. Up to 1052 conditions per place. [2024-11-10 18:00:37,400 INFO L140 encePairwiseOnDemand]: 62/67 looper letters, 39 selfloop transitions, 1 changer transitions 35/80 dead transitions. [2024-11-10 18:00:37,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 80 transitions, 413 flow [2024-11-10 18:00:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:00:37,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:00:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-11-10 18:00:37,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2885572139303483 [2024-11-10 18:00:37,401 INFO L175 Difference]: Start difference. First operand has 64 places, 41 transitions, 145 flow. Second operand 6 states and 116 transitions. [2024-11-10 18:00:37,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 80 transitions, 413 flow [2024-11-10 18:00:37,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 80 transitions, 399 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-10 18:00:37,403 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 136 flow [2024-11-10 18:00:37,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2024-11-10 18:00:37,403 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2024-11-10 18:00:37,404 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 136 flow [2024-11-10 18:00:37,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:37,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:37,404 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] [2024-11-10 18:00:37,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 18:00:37,404 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:37,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:37,404 INFO L85 PathProgramCache]: Analyzing trace with hash 350008231, now seen corresponding path program 3 times [2024-11-10 18:00:37,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:00:37,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127318118] [2024-11-10 18:00:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:37,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:00:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 18:00:37,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 18:00:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 18:00:37,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 18:00:37,508 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 18:00:37,509 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (46 of 47 remaining) [2024-11-10 18:00:37,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 47 remaining) [2024-11-10 18:00:37,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 47 remaining) [2024-11-10 18:00:37,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 47 remaining) [2024-11-10 18:00:37,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 47 remaining) [2024-11-10 18:00:37,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 47 remaining) [2024-11-10 18:00:37,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 47 remaining) [2024-11-10 18:00:37,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (21 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 47 remaining) [2024-11-10 18:00:37,520 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 47 remaining) [2024-11-10 18:00:37,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 47 remaining) [2024-11-10 18:00:37,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 47 remaining) [2024-11-10 18:00:37,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 47 remaining) [2024-11-10 18:00:37,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 47 remaining) [2024-11-10 18:00:37,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 47 remaining) [2024-11-10 18:00:37,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 47 remaining) [2024-11-10 18:00:37,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 47 remaining) [2024-11-10 18:00:37,521 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 47 remaining) [2024-11-10 18:00:37,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 47 remaining) [2024-11-10 18:00:37,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 18:00:37,522 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:37,632 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:00:37,632 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:00:37,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:00:37 BasicIcfg [2024-11-10 18:00:37,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:00:37,636 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:00:37,636 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:00:37,636 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:00:37,637 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:00:20" (3/4) ... [2024-11-10 18:00:37,638 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 18:00:37,639 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:00:37,639 INFO L158 Benchmark]: Toolchain (without parser) took 19110.89ms. Allocated memory was 125.8MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 99.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 864.2MB. Max. memory is 16.1GB. [2024-11-10 18:00:37,640 INFO L158 Benchmark]: CDTParser took 4.03ms. Allocated memory is still 125.8MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:00:37,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.03ms. Allocated memory is still 125.8MB. Free memory was 99.2MB in the beginning and 73.8MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-10 18:00:37,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.58ms. Allocated memory is still 125.8MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:00:37,640 INFO L158 Benchmark]: Boogie Preprocessor took 67.57ms. Allocated memory is still 125.8MB. Free memory was 71.2MB in the beginning and 67.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:00:37,640 INFO L158 Benchmark]: IcfgBuilder took 1087.49ms. Allocated memory was 125.8MB in the beginning and 188.7MB in the end (delta: 62.9MB). Free memory was 67.5MB in the beginning and 116.6MB in the end (delta: -49.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-10 18:00:37,641 INFO L158 Benchmark]: TraceAbstraction took 17115.37ms. Allocated memory was 188.7MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 116.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 820.1MB. Max. memory is 16.1GB. [2024-11-10 18:00:37,641 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 2.4GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:00:37,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.03ms. Allocated memory is still 125.8MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.03ms. Allocated memory is still 125.8MB. Free memory was 99.2MB in the beginning and 73.8MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.58ms. Allocated memory is still 125.8MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.57ms. Allocated memory is still 125.8MB. Free memory was 71.2MB in the beginning and 67.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1087.49ms. Allocated memory was 125.8MB in the beginning and 188.7MB in the end (delta: 62.9MB). Free memory was 67.5MB in the beginning and 116.6MB in the end (delta: -49.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * TraceAbstraction took 17115.37ms. Allocated memory was 188.7MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 116.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 820.1MB. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 2.4GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L713] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L714] 0 int __unbuffered_p0_EAX$mem_tmp; [L715] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L716] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L717] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L718] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd3; [L719] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L720] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L721] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L722] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd3; [L723] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L724] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L725] 0 int __unbuffered_p0_EAX$w_buff0; [L726] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L727] 0 int __unbuffered_p0_EAX$w_buff1; [L728] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L730] 0 int __unbuffered_p0_EBX = 0; [L732] 0 int __unbuffered_p2_EAX = 0; [L733] 0 _Bool main$tmp_guard0; [L734] 0 _Bool main$tmp_guard1; [L736] 0 int x = 0; [L738] 0 int y = 0; [L738] 0 int y = 0; [L739] 0 _Bool y$flush_delayed; [L740] 0 int y$mem_tmp; [L741] 0 _Bool y$r_buff0_thd0; [L742] 0 _Bool y$r_buff0_thd1; [L743] 0 _Bool y$r_buff0_thd2; [L744] 0 _Bool y$r_buff0_thd3; [L745] 0 _Bool y$r_buff1_thd0; [L746] 0 _Bool y$r_buff1_thd1; [L747] 0 _Bool y$r_buff1_thd2; [L748] 0 _Bool y$r_buff1_thd3; [L749] 0 _Bool y$read_delayed; [L750] 0 int *y$read_delayed_var; [L751] 0 int y$w_buff0; [L752] 0 _Bool y$w_buff0_used; [L753] 0 int y$w_buff1; [L754] 0 _Bool y$w_buff1_used; [L755] 0 _Bool weak$$choice0; [L756] 0 _Bool weak$$choice1; [L757] 0 _Bool weak$$choice2; [L834] 0 pthread_t t2109; [L835] FCALL, FORK 0 pthread_create(&t2109, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2109=-3, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L761] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L762] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L763] 1 y$flush_delayed = weak$$choice2 [L764] EXPR 1 \read(y) [L764] 1 y$mem_tmp = y [L765] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L765] EXPR 1 \read(y) [L765] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L765] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L766] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L767] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L768] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L769] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L770] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L771] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L772] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L773] 1 __unbuffered_p0_EAX$read_delayed_var = &y [L774] EXPR 1 \read(y) [L774] 1 __unbuffered_p0_EAX = y [L775] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L775] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L775] 1 y = y$flush_delayed ? y$mem_tmp : y [L776] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L836] 0 pthread_t t2110; [L837] FCALL, FORK 0 pthread_create(&t2110, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2109=-3, t2110=-2, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L779] 1 __unbuffered_p0_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L838] 0 pthread_t t2111; [L839] FCALL, FORK 0 pthread_create(&t2111, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2109=-3, t2110=-2, t2111=-1, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L791] 2 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L784] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L794] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L806] 3 __unbuffered_p2_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L799] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L809] 3 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L812] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L812] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L812] EXPR 3 \read(y) [L812] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L812] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L812] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L813] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L814] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L815] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L816] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L819] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L841] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2109=-3, t2110=-2, t2111=-1, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L843] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L843] RET 0 assume_abort_if_not(main$tmp_guard0) [L845] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L845] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L845] EXPR 0 \read(y) [L845] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L845] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L845] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L846] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L847] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L848] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L849] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2109=-3, t2110=-2, t2111=-1, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L852] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L853] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L853] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L853] EXPR 0 \read(*__unbuffered_p0_EAX$read_delayed_var) [L853] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L853] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L853] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L854] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p2_EAX == 2) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2109=-3, t2110=-2, t2111=-1, weak$$choice0=1, weak$$choice1=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L856] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L18] 0 __assert_fail ("0", "safe014_rmo.oepc.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 837]: 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: 839]: 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: 835]: 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, 108 locations, 47 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: 16.7s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 922 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 917 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2440 IncrementalHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 3 mSDtfsCounter, 2440 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=15, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 293 ConstructedInterpolants, 0 QuantifiedInterpolants, 1228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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 [2024-11-10 18:00:37,691 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe014_rmo.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 bb32390c6e08fa980f308e05dcc5f75aadd246c70ded8fbe4d875fa3ae4239fa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:00:40,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:00:40,180 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-10 18:00:40,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:00:40,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:00:40,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:00:40,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:00:40,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:00:40,206 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:00:40,206 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:00:40,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:00:40,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:00:40,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:00:40,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:00:40,207 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:00:40,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:00:40,208 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:00:40,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:00:40,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:00:40,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:00:40,211 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:00:40,215 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:00:40,215 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:00:40,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:00:40,216 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:00:40,216 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 18:00:40,216 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:00:40,216 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 18:00:40,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:00:40,217 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:00:40,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:00:40,217 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:00:40,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:00:40,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:00:40,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:00:40,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:00:40,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:00:40,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:00:40,219 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 18:00:40,219 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 18:00:40,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:00:40,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:00:40,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:00:40,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:00:40,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb32390c6e08fa980f308e05dcc5f75aadd246c70ded8fbe4d875fa3ae4239fa [2024-11-10 18:00:40,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:00:40,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:00:40,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:00:40,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:00:40,556 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:00:40,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i [2024-11-10 18:00:42,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:00:42,723 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:00:42,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_rmo.oepc.i [2024-11-10 18:00:42,740 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e94a23a/21164f2311c647329ec4a4f4d7c68ed9/FLAG7ad61f24d [2024-11-10 18:00:42,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e94a23a/21164f2311c647329ec4a4f4d7c68ed9 [2024-11-10 18:00:42,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:00:42,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:00:42,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:00:42,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:00:42,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:00:42,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:00:42" (1/1) ... [2024-11-10 18:00:42,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4404eb06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:42, skipping insertion in model container [2024-11-10 18:00:42,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:00:42" (1/1) ... [2024-11-10 18:00:43,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:00:43,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:00:43,374 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:00:43,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:00:43,513 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:00:43,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43 WrapperNode [2024-11-10 18:00:43,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:00:43,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:00:43,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:00:43,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:00:43,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,599 INFO L138 Inliner]: procedures = 179, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2024-11-10 18:00:43,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:00:43,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:00:43,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:00:43,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:00:43,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,631 INFO L175 MemorySlicer]: Split 15 memory accesses to 2 slices as follows [13, 2]. 87 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 2]. The 5 writes are split as follows [5, 0]. [2024-11-10 18:00:43,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:00:43,665 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:00:43,665 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:00:43,665 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:00:43,666 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (1/1) ... [2024-11-10 18:00:43,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:00:43,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:00:43,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:00:43,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:00:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-10 18:00:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-10 18:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 18:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-10 18:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-10 18:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 18:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-10 18:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-10 18:00:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-10 18:00:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 18:00:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 18:00:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 18:00:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 18:00:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 18:00:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 18:00:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 18:00:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:00:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:00:43,749 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:00:43,891 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:00:43,893 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:00:44,422 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:00:44,422 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:00:44,901 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:00:44,902 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:00:44,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:00:44 BoogieIcfgContainer [2024-11-10 18:00:44,902 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:00:44,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:00:44,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:00:44,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:00:44,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:00:42" (1/3) ... [2024-11-10 18:00:44,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d59814e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:00:44, skipping insertion in model container [2024-11-10 18:00:44,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:00:43" (2/3) ... [2024-11-10 18:00:44,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d59814e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:00:44, skipping insertion in model container [2024-11-10 18:00:44,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:00:44" (3/3) ... [2024-11-10 18:00:44,913 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_rmo.oepc.i [2024-11-10 18:00:44,932 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:00:44,932 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-11-10 18:00:44,932 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:00:45,074 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 18:00:45,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 67 transitions, 146 flow [2024-11-10 18:00:45,151 INFO L124 PetriNetUnfolderBase]: 2/64 cut-off events. [2024-11-10 18:00:45,151 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:45,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 208 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2024-11-10 18:00:45,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 67 transitions, 146 flow [2024-11-10 18:00:45,160 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 64 transitions, 137 flow [2024-11-10 18:00:45,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:00:45,179 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;@1e4d0043, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:00:45,180 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-10 18:00:45,183 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:00:45,184 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-10 18:00:45,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:45,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:45,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:00:45,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:45,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash 17852479, now seen corresponding path program 1 times [2024-11-10 18:00:45,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:45,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52240505] [2024-11-10 18:00:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:45,204 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 [2024-11-10 18:00:45,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:45,210 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) [2024-11-10 18:00:45,217 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 [2024-11-10 18:00:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:45,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 18:00:45,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:45,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:45,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:45,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52240505] [2024-11-10 18:00:45,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52240505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:45,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:45,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:00:45,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967335507] [2024-11-10 18:00:45,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:45,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:00:45,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:45,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:00:45,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:00:45,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:45,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 64 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:45,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:45,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:45,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:48,904 INFO L124 PetriNetUnfolderBase]: 13427/20344 cut-off events. [2024-11-10 18:00:48,904 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-10 18:00:48,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39267 conditions, 20344 events. 13427/20344 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 136583 event pairs, 13427 based on Foata normal form. 756/17048 useless extension candidates. Maximal degree in co-relation 39256. Up to 18818 conditions per place. [2024-11-10 18:00:49,092 INFO L140 encePairwiseOnDemand]: 48/67 looper letters, 37 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2024-11-10 18:00:49,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 45 transitions, 175 flow [2024-11-10 18:00:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:00:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:00:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-10 18:00:49,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42786069651741293 [2024-11-10 18:00:49,106 INFO L175 Difference]: Start difference. First operand has 72 places, 64 transitions, 137 flow. Second operand 3 states and 86 transitions. [2024-11-10 18:00:49,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 45 transitions, 175 flow [2024-11-10 18:00:49,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 45 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:00:49,113 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 98 flow [2024-11-10 18:00:49,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2024-11-10 18:00:49,118 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -18 predicate places. [2024-11-10 18:00:49,118 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 98 flow [2024-11-10 18:00:49,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:49,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:49,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:00:49,124 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 [2024-11-10 18:00:49,320 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 [2024-11-10 18:00:49,320 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:49,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:49,321 INFO L85 PathProgramCache]: Analyzing trace with hash 17852480, now seen corresponding path program 1 times [2024-11-10 18:00:49,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:49,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833512565] [2024-11-10 18:00:49,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:49,322 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 [2024-11-10 18:00:49,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:49,326 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) [2024-11-10 18:00:49,331 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 [2024-11-10 18:00:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:49,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:00:49,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:49,439 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:49,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:49,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833512565] [2024-11-10 18:00:49,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833512565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:49,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:49,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:00:49,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391533010] [2024-11-10 18:00:49,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:49,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:00:49,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:49,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:00:49,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:00:49,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:49,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:49,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:49,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:49,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:50,561 INFO L124 PetriNetUnfolderBase]: 6395/9947 cut-off events. [2024-11-10 18:00:50,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:50,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19109 conditions, 9947 events. 6395/9947 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 61751 event pairs, 6395 based on Foata normal form. 0/9510 useless extension candidates. Maximal degree in co-relation 19103. Up to 9072 conditions per place. [2024-11-10 18:00:50,614 INFO L140 encePairwiseOnDemand]: 60/67 looper letters, 30 selfloop transitions, 1 changer transitions 1/39 dead transitions. [2024-11-10 18:00:50,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 39 transitions, 150 flow [2024-11-10 18:00:50,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:00:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:00:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-11-10 18:00:50,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3383084577114428 [2024-11-10 18:00:50,617 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 98 flow. Second operand 3 states and 68 transitions. [2024-11-10 18:00:50,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 39 transitions, 150 flow [2024-11-10 18:00:50,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 39 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:00:50,619 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 85 flow [2024-11-10 18:00:50,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2024-11-10 18:00:50,619 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -23 predicate places. [2024-11-10 18:00:50,620 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 85 flow [2024-11-10 18:00:50,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:50,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:50,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:50,632 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 [2024-11-10 18:00:50,831 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 [2024-11-10 18:00:50,832 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:50,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:50,832 INFO L85 PathProgramCache]: Analyzing trace with hash -460797517, now seen corresponding path program 1 times [2024-11-10 18:00:50,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:50,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148286982] [2024-11-10 18:00:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:50,834 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 [2024-11-10 18:00:50,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:50,838 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) [2024-11-10 18:00:50,839 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 [2024-11-10 18:00:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:50,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 18:00:50,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:50,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:50,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:50,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148286982] [2024-11-10 18:00:50,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148286982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:50,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:50,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:00:50,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316003320] [2024-11-10 18:00:50,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:50,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:00:50,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:00:50,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:00:50,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:50,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:50,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:50,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:50,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:51,832 INFO L124 PetriNetUnfolderBase]: 4515/7235 cut-off events. [2024-11-10 18:00:51,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:00:51,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13942 conditions, 7235 events. 4515/7235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 44633 event pairs, 535 based on Foata normal form. 216/7144 useless extension candidates. Maximal degree in co-relation 13935. Up to 4501 conditions per place. [2024-11-10 18:00:51,869 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 58 selfloop transitions, 5 changer transitions 1/71 dead transitions. [2024-11-10 18:00:51,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 71 transitions, 283 flow [2024-11-10 18:00:51,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:00:51,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:00:51,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-11-10 18:00:51,870 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39552238805970147 [2024-11-10 18:00:51,871 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 85 flow. Second operand 4 states and 106 transitions. [2024-11-10 18:00:51,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 71 transitions, 283 flow [2024-11-10 18:00:51,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 71 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:00:51,873 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 118 flow [2024-11-10 18:00:51,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-11-10 18:00:51,873 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -20 predicate places. [2024-11-10 18:00:51,874 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 118 flow [2024-11-10 18:00:51,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:51,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:51,874 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:51,881 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 [2024-11-10 18:00:52,077 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 [2024-11-10 18:00:52,078 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:52,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:52,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1491555489, now seen corresponding path program 1 times [2024-11-10 18:00:52,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:52,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078110091] [2024-11-10 18:00:52,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:52,080 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 [2024-11-10 18:00:52,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:52,083 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) [2024-11-10 18:00:52,084 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 [2024-11-10 18:00:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:52,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:00:52,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:52,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:52,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:52,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078110091] [2024-11-10 18:00:52,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078110091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:52,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:52,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:00:52,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271491676] [2024-11-10 18:00:52,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:52,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:00:52,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:52,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:00:52,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:00:52,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:52,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:52,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:52,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:52,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:52,682 INFO L124 PetriNetUnfolderBase]: 2259/3667 cut-off events. [2024-11-10 18:00:52,683 INFO L125 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2024-11-10 18:00:52,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8133 conditions, 3667 events. 2259/3667 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 19514 event pairs, 339 based on Foata normal form. 152/3704 useless extension candidates. Maximal degree in co-relation 8123. Up to 1477 conditions per place. [2024-11-10 18:00:52,700 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 73 selfloop transitions, 8 changer transitions 1/89 dead transitions. [2024-11-10 18:00:52,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 89 transitions, 399 flow [2024-11-10 18:00:52,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:00:52,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:00:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2024-11-10 18:00:52,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-11-10 18:00:52,702 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 118 flow. Second operand 5 states and 134 transitions. [2024-11-10 18:00:52,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 89 transitions, 399 flow [2024-11-10 18:00:52,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 389 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 18:00:52,706 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 158 flow [2024-11-10 18:00:52,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-10 18:00:52,707 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2024-11-10 18:00:52,707 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 158 flow [2024-11-10 18:00:52,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:52,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:52,707 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:52,712 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 [2024-11-10 18:00:52,908 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 [2024-11-10 18:00:52,908 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:52,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:52,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1006526000, now seen corresponding path program 1 times [2024-11-10 18:00:52,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:52,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408150225] [2024-11-10 18:00:52,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:52,910 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 [2024-11-10 18:00:52,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:52,914 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) [2024-11-10 18:00:52,922 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 [2024-11-10 18:00:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:53,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:00:53,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:53,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:53,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:53,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:53,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408150225] [2024-11-10 18:00:53,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408150225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:53,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:53,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:00:53,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63152917] [2024-11-10 18:00:53,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:53,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:53,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:53,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:53,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:53,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:53,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:53,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:53,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:53,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:53,410 INFO L124 PetriNetUnfolderBase]: 1203/1891 cut-off events. [2024-11-10 18:00:53,410 INFO L125 PetriNetUnfolderBase]: For 1138/1138 co-relation queries the response was YES. [2024-11-10 18:00:53,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4697 conditions, 1891 events. 1203/1891 cut-off events. For 1138/1138 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 8365 event pairs, 303 based on Foata normal form. 56/1928 useless extension candidates. Maximal degree in co-relation 4685. Up to 672 conditions per place. [2024-11-10 18:00:53,420 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 62 selfloop transitions, 11 changer transitions 1/81 dead transitions. [2024-11-10 18:00:53,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 81 transitions, 390 flow [2024-11-10 18:00:53,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:00:53,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:00:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2024-11-10 18:00:53,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3383084577114428 [2024-11-10 18:00:53,422 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 158 flow. Second operand 6 states and 136 transitions. [2024-11-10 18:00:53,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 81 transitions, 390 flow [2024-11-10 18:00:53,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 81 transitions, 365 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-10 18:00:53,430 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 172 flow [2024-11-10 18:00:53,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=172, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2024-11-10 18:00:53,431 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -13 predicate places. [2024-11-10 18:00:53,431 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 172 flow [2024-11-10 18:00:53,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:53,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:53,432 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] [2024-11-10 18:00:53,436 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 (6)] Forceful destruction successful, exit code 0 [2024-11-10 18:00:53,632 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 [2024-11-10 18:00:53,633 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:53,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:53,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1035914536, now seen corresponding path program 1 times [2024-11-10 18:00:53,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:53,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374216865] [2024-11-10 18:00:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:53,634 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 [2024-11-10 18:00:53,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:53,637 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) [2024-11-10 18:00:53,638 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 [2024-11-10 18:00:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:53,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:00:53,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:53,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:53,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:53,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374216865] [2024-11-10 18:00:53,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374216865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:53,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:53,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:00:53,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61414768] [2024-11-10 18:00:53,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:53,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:00:53,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:53,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:00:53,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:00:53,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:53,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:53,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:53,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:53,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:54,158 INFO L124 PetriNetUnfolderBase]: 1091/1708 cut-off events. [2024-11-10 18:00:54,158 INFO L125 PetriNetUnfolderBase]: For 1106/1106 co-relation queries the response was YES. [2024-11-10 18:00:54,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4275 conditions, 1708 events. 1091/1708 cut-off events. For 1106/1106 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7653 event pairs, 247 based on Foata normal form. 0/1699 useless extension candidates. Maximal degree in co-relation 4262. Up to 1490 conditions per place. [2024-11-10 18:00:54,167 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 51 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-11-10 18:00:54,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 60 transitions, 338 flow [2024-11-10 18:00:54,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:00:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:00:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-11-10 18:00:54,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3208955223880597 [2024-11-10 18:00:54,168 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 172 flow. Second operand 4 states and 86 transitions. [2024-11-10 18:00:54,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 60 transitions, 338 flow [2024-11-10 18:00:54,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 266 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-10 18:00:54,173 INFO L231 Difference]: Finished difference. Result has 53 places, 43 transitions, 118 flow [2024-11-10 18:00:54,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2024-11-10 18:00:54,174 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -19 predicate places. [2024-11-10 18:00:54,174 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 118 flow [2024-11-10 18:00:54,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:54,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:54,174 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] [2024-11-10 18:00:54,179 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 [2024-11-10 18:00:54,378 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 [2024-11-10 18:00:54,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:54,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash 712880057, now seen corresponding path program 1 times [2024-11-10 18:00:54,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:54,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136411587] [2024-11-10 18:00:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:54,380 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 [2024-11-10 18:00:54,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:54,383 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) [2024-11-10 18:00:54,384 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 [2024-11-10 18:00:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:54,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:00:54,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:54,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:54,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:54,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136411587] [2024-11-10 18:00:54,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136411587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:54,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:54,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:00:54,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502754320] [2024-11-10 18:00:54,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:54,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:00:54,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:54,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:00:54,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:00:54,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:54,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:54,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:54,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:54,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:55,072 INFO L124 PetriNetUnfolderBase]: 1079/1688 cut-off events. [2024-11-10 18:00:55,072 INFO L125 PetriNetUnfolderBase]: For 202/202 co-relation queries the response was YES. [2024-11-10 18:00:55,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3761 conditions, 1688 events. 1079/1688 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7605 event pairs, 235 based on Foata normal form. 0/1687 useless extension candidates. Maximal degree in co-relation 3752. Up to 1470 conditions per place. [2024-11-10 18:00:55,084 INFO L140 encePairwiseOnDemand]: 64/67 looper letters, 50 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2024-11-10 18:00:55,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 266 flow [2024-11-10 18:00:55,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:00:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:00:55,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-10 18:00:55,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31716417910447764 [2024-11-10 18:00:55,086 INFO L175 Difference]: Start difference. First operand has 53 places, 43 transitions, 118 flow. Second operand 4 states and 85 transitions. [2024-11-10 18:00:55,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 266 flow [2024-11-10 18:00:55,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:00:55,088 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 117 flow [2024-11-10 18:00:55,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2024-11-10 18:00:55,089 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -19 predicate places. [2024-11-10 18:00:55,089 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 117 flow [2024-11-10 18:00:55,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:55,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:55,090 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] [2024-11-10 18:00:55,097 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 [2024-11-10 18:00:55,290 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 [2024-11-10 18:00:55,292 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:55,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:55,293 INFO L85 PathProgramCache]: Analyzing trace with hash -160455234, now seen corresponding path program 1 times [2024-11-10 18:00:55,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:55,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621066826] [2024-11-10 18:00:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:55,294 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 [2024-11-10 18:00:55,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:55,296 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) [2024-11-10 18:00:55,298 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 [2024-11-10 18:00:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:55,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 18:00:55,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:55,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:55,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:55,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:55,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621066826] [2024-11-10 18:00:55,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621066826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:55,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:55,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:00:55,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268710731] [2024-11-10 18:00:55,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:55,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:00:55,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:55,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:00:55,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:00:55,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 67 [2024-11-10 18:00:55,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:55,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:55,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 67 [2024-11-10 18:00:55,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:55,725 INFO L124 PetriNetUnfolderBase]: 1079/1687 cut-off events. [2024-11-10 18:00:55,726 INFO L125 PetriNetUnfolderBase]: For 198/198 co-relation queries the response was YES. [2024-11-10 18:00:55,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3846 conditions, 1687 events. 1079/1687 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7226 event pairs, 1011 based on Foata normal form. 8/1690 useless extension candidates. Maximal degree in co-relation 3837. Up to 1652 conditions per place. [2024-11-10 18:00:55,737 INFO L140 encePairwiseOnDemand]: 65/67 looper letters, 33 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-11-10 18:00:55,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 41 transitions, 185 flow [2024-11-10 18:00:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:00:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:00:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-11-10 18:00:55,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2835820895522388 [2024-11-10 18:00:55,739 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 117 flow. Second operand 3 states and 57 transitions. [2024-11-10 18:00:55,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 41 transitions, 185 flow [2024-11-10 18:00:55,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:00:55,740 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 112 flow [2024-11-10 18:00:55,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-11-10 18:00:55,741 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -20 predicate places. [2024-11-10 18:00:55,742 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 112 flow [2024-11-10 18:00:55,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:55,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:55,743 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] [2024-11-10 18:00:55,749 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 (9)] Ended with exit code 0 [2024-11-10 18:00:55,946 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 [2024-11-10 18:00:55,948 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:55,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash 876602859, now seen corresponding path program 1 times [2024-11-10 18:00:55,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:55,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703190365] [2024-11-10 18:00:55,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:00:55,949 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 [2024-11-10 18:00:55,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:55,954 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) [2024-11-10 18:00:55,963 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 (10)] Waiting until timeout for monitored process [2024-11-10 18:00:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:00:56,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:00:56,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:56,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:56,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:56,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703190365] [2024-11-10 18:00:56,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703190365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:56,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:56,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:00:56,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311173906] [2024-11-10 18:00:56,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:56,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:56,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:56,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:56,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:56,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:56,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:56,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:56,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:56,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:56,771 INFO L124 PetriNetUnfolderBase]: 1641/2569 cut-off events. [2024-11-10 18:00:56,772 INFO L125 PetriNetUnfolderBase]: For 202/202 co-relation queries the response was YES. [2024-11-10 18:00:56,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5808 conditions, 2569 events. 1641/2569 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 12041 event pairs, 861 based on Foata normal form. 8/2572 useless extension candidates. Maximal degree in co-relation 5799. Up to 1371 conditions per place. [2024-11-10 18:00:56,782 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 46 selfloop transitions, 2 changer transitions 46/100 dead transitions. [2024-11-10 18:00:56,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 100 transitions, 463 flow [2024-11-10 18:00:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:00:56,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 18:00:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 149 transitions. [2024-11-10 18:00:56,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31769722814498935 [2024-11-10 18:00:56,785 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 112 flow. Second operand 7 states and 149 transitions. [2024-11-10 18:00:56,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 100 transitions, 463 flow [2024-11-10 18:00:56,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 100 transitions, 462 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:00:56,787 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 125 flow [2024-11-10 18:00:56,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=50, 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=7, PETRI_FLOW=125, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2024-11-10 18:00:56,788 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -12 predicate places. [2024-11-10 18:00:56,788 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 125 flow [2024-11-10 18:00:56,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:56,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:56,789 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] [2024-11-10 18:00:56,795 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 [2024-11-10 18:00:56,991 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 [2024-11-10 18:00:56,991 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:56,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:56,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1617474387, now seen corresponding path program 2 times [2024-11-10 18:00:56,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:56,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060408843] [2024-11-10 18:00:56,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:00:56,993 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 [2024-11-10 18:00:56,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:56,998 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2024-11-10 18:00:57,007 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 (11)] Waiting until timeout for monitored process [2024-11-10 18:00:57,127 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 18:00:57,127 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:00:57,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:00:57,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:57,212 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:57,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:57,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060408843] [2024-11-10 18:00:57,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060408843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:57,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:57,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:00:57,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437256946] [2024-11-10 18:00:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:57,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:57,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:57,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:57,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:57,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:57,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 40 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:57,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:57,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:57,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:57,614 INFO L124 PetriNetUnfolderBase]: 1513/2383 cut-off events. [2024-11-10 18:00:57,614 INFO L125 PetriNetUnfolderBase]: For 555/558 co-relation queries the response was YES. [2024-11-10 18:00:57,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5776 conditions, 2383 events. 1513/2383 cut-off events. For 555/558 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11314 event pairs, 337 based on Foata normal form. 8/2387 useless extension candidates. Maximal degree in co-relation 5763. Up to 1112 conditions per place. [2024-11-10 18:00:57,628 INFO L140 encePairwiseOnDemand]: 62/67 looper letters, 46 selfloop transitions, 1 changer transitions 33/86 dead transitions. [2024-11-10 18:00:57,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 416 flow [2024-11-10 18:00:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:00:57,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:00:57,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2024-11-10 18:00:57,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31592039800995025 [2024-11-10 18:00:57,633 INFO L175 Difference]: Start difference. First operand has 60 places, 40 transitions, 125 flow. Second operand 6 states and 127 transitions. [2024-11-10 18:00:57,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 416 flow [2024-11-10 18:00:57,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 86 transitions, 402 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-10 18:00:57,636 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 126 flow [2024-11-10 18:00:57,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2024-11-10 18:00:57,637 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -12 predicate places. [2024-11-10 18:00:57,637 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 126 flow [2024-11-10 18:00:57,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:57,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:57,638 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] [2024-11-10 18:00:57,647 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 (11)] Ended with exit code 0 [2024-11-10 18:00:57,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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 [2024-11-10 18:00:57,843 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:57,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:57,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1968362709, now seen corresponding path program 3 times [2024-11-10 18:00:57,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:57,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886911623] [2024-11-10 18:00:57,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:00:57,845 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 [2024-11-10 18:00:57,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:57,848 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2024-11-10 18:00:57,861 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 (12)] Waiting until timeout for monitored process [2024-11-10 18:00:57,981 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-10 18:00:57,982 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:00:57,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 18:00:57,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:00:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:00:58,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:00:58,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 18:00:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886911623] [2024-11-10 18:00:58,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886911623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:00:58,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:00:58,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:00:58,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387416058] [2024-11-10 18:00:58,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:00:58,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:00:58,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 18:00:58,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:00:58,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:00:58,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2024-11-10 18:00:58,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 40 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:58,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:00:58,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2024-11-10 18:00:58,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:00:58,378 INFO L124 PetriNetUnfolderBase]: 1587/2531 cut-off events. [2024-11-10 18:00:58,379 INFO L125 PetriNetUnfolderBase]: For 602/605 co-relation queries the response was YES. [2024-11-10 18:00:58,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6165 conditions, 2531 events. 1587/2531 cut-off events. For 602/605 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 12224 event pairs, 157 based on Foata normal form. 8/2535 useless extension candidates. Maximal degree in co-relation 6151. Up to 1240 conditions per place. [2024-11-10 18:00:58,398 INFO L140 encePairwiseOnDemand]: 61/67 looper letters, 47 selfloop transitions, 3 changer transitions 28/84 dead transitions. [2024-11-10 18:00:58,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 411 flow [2024-11-10 18:00:58,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:00:58,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:00:58,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-10 18:00:58,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31094527363184077 [2024-11-10 18:00:58,399 INFO L175 Difference]: Start difference. First operand has 60 places, 40 transitions, 126 flow. Second operand 6 states and 125 transitions. [2024-11-10 18:00:58,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 411 flow [2024-11-10 18:00:58,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 84 transitions, 399 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 18:00:58,411 INFO L231 Difference]: Finished difference. Result has 61 places, 40 transitions, 133 flow [2024-11-10 18:00:58,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=133, PETRI_PLACES=61, PETRI_TRANSITIONS=40} [2024-11-10 18:00:58,412 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -11 predicate places. [2024-11-10 18:00:58,416 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 40 transitions, 133 flow [2024-11-10 18:00:58,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:00:58,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:00:58,416 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] [2024-11-10 18:00:58,424 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 (12)] Ended with exit code 0 [2024-11-10 18:00:58,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 [2024-11-10 18:00:58,617 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 44 more)] === [2024-11-10 18:00:58,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:00:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash -527537907, now seen corresponding path program 4 times [2024-11-10 18:00:58,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 18:00:58,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498604506] [2024-11-10 18:00:58,623 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:00:58,623 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 [2024-11-10 18:00:58,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 18:00:58,626 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2024-11-10 18:00:58,627 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 (13)] Waiting until timeout for monitored process [2024-11-10 18:00:58,769 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:00:58,770 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-10 18:00:58,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 18:00:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 18:00:58,964 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-10 18:00:58,965 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 18:00:58,970 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (46 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 47 remaining) [2024-11-10 18:00:58,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 47 remaining) [2024-11-10 18:00:58,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 47 remaining) [2024-11-10 18:00:58,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 47 remaining) [2024-11-10 18:00:58,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 47 remaining) [2024-11-10 18:00:58,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 47 remaining) [2024-11-10 18:00:58,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 47 remaining) [2024-11-10 18:00:58,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 47 remaining) [2024-11-10 18:00:58,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 47 remaining) [2024-11-10 18:00:58,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 47 remaining) [2024-11-10 18:00:58,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 47 remaining) [2024-11-10 18:00:58,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 47 remaining) [2024-11-10 18:00:58,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 47 remaining) [2024-11-10 18:00:58,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 47 remaining) [2024-11-10 18:00:58,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (21 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 47 remaining) [2024-11-10 18:00:58,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 47 remaining) [2024-11-10 18:00:58,980 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 47 remaining) [2024-11-10 18:00:58,992 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 (13)] Forceful destruction successful, exit code 0 [2024-11-10 18:00:59,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 [2024-11-10 18:00:59,182 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:00:59,351 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:00:59,351 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:00:59,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:00:59 BasicIcfg [2024-11-10 18:00:59,360 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:00:59,360 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:00:59,360 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:00:59,360 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:00:59,361 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:00:44" (3/4) ... [2024-11-10 18:00:59,362 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-10 18:00:59,368 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:00:59,372 INFO L158 Benchmark]: Toolchain (without parser) took 16399.78ms. Allocated memory was 83.9MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 60.3MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 620.8MB. Max. memory is 16.1GB. [2024-11-10 18:00:59,372 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 104.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:00:59,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.53ms. Allocated memory is still 83.9MB. Free memory was 60.0MB in the beginning and 57.0MB in the end (delta: 3.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2024-11-10 18:00:59,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.97ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 54.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:00:59,373 INFO L158 Benchmark]: Boogie Preprocessor took 62.39ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 50.7MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 18:00:59,373 INFO L158 Benchmark]: IcfgBuilder took 1237.85ms. Allocated memory was 83.9MB in the beginning and 127.9MB in the end (delta: 44.0MB). Free memory was 50.7MB in the beginning and 85.8MB in the end (delta: -35.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2024-11-10 18:00:59,373 INFO L158 Benchmark]: TraceAbstraction took 14454.21ms. Allocated memory was 127.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 85.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 601.7MB. Max. memory is 16.1GB. [2024-11-10 18:00:59,373 INFO L158 Benchmark]: Witness Printer took 8.02ms. Allocated memory is still 2.2GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:00:59,375 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 104.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.53ms. Allocated memory is still 83.9MB. Free memory was 60.0MB in the beginning and 57.0MB in the end (delta: 3.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.97ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 54.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.39ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 50.7MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 1237.85ms. Allocated memory was 83.9MB in the beginning and 127.9MB in the end (delta: 44.0MB). Free memory was 50.7MB in the beginning and 85.8MB in the end (delta: -35.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14454.21ms. Allocated memory was 127.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 85.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 601.7MB. Max. memory is 16.1GB. * Witness Printer took 8.02ms. Allocated memory is still 2.2GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L713] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L714] 0 int __unbuffered_p0_EAX$mem_tmp; [L715] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L716] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L717] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L718] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd3; [L719] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L720] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L721] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L722] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd3; [L723] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L724] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L725] 0 int __unbuffered_p0_EAX$w_buff0; [L726] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L727] 0 int __unbuffered_p0_EAX$w_buff1; [L728] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L730] 0 int __unbuffered_p0_EBX = 0; [L732] 0 int __unbuffered_p2_EAX = 0; [L733] 0 _Bool main$tmp_guard0; [L734] 0 _Bool main$tmp_guard1; [L736] 0 int x = 0; [L738] 0 int y = 0; [L738] 0 int y = 0; [L739] 0 _Bool y$flush_delayed; [L740] 0 int y$mem_tmp; [L741] 0 _Bool y$r_buff0_thd0; [L742] 0 _Bool y$r_buff0_thd1; [L743] 0 _Bool y$r_buff0_thd2; [L744] 0 _Bool y$r_buff0_thd3; [L745] 0 _Bool y$r_buff1_thd0; [L746] 0 _Bool y$r_buff1_thd1; [L747] 0 _Bool y$r_buff1_thd2; [L748] 0 _Bool y$r_buff1_thd3; [L749] 0 _Bool y$read_delayed; [L750] 0 int *y$read_delayed_var; [L751] 0 int y$w_buff0; [L752] 0 _Bool y$w_buff0_used; [L753] 0 int y$w_buff1; [L754] 0 _Bool y$w_buff1_used; [L755] 0 _Bool weak$$choice0; [L756] 0 _Bool weak$$choice1; [L757] 0 _Bool weak$$choice2; [L834] 0 pthread_t t2109; [L835] FCALL, FORK 0 pthread_create(&t2109, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2109=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L761] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L762] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L763] 1 y$flush_delayed = weak$$choice2 [L764] EXPR 1 \read(y) [L764] 1 y$mem_tmp = y [L765] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L765] EXPR 1 \read(y) [L765] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L765] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L766] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L767] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L768] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L769] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L770] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L771] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L772] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L773] 1 __unbuffered_p0_EAX$read_delayed_var = &y [L774] EXPR 1 \read(y) [L774] 1 __unbuffered_p0_EAX = y [L775] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L775] EXPR 1 \read(y) [L775] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L775] 1 y = y$flush_delayed ? y$mem_tmp : y [L776] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L836] 0 pthread_t t2110; [L837] FCALL, FORK 0 pthread_create(&t2110, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2109=0, t2110=1, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L779] 1 __unbuffered_p0_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L838] 0 pthread_t t2111; [L839] FCALL, FORK 0 pthread_create(&t2111, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2109=0, t2110=1, t2111=2, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L784] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L791] 2 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L794] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L799] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L806] 3 __unbuffered_p2_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L809] 3 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L812] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L812] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L812] EXPR 3 \read(y) [L812] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L812] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L812] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L813] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L814] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L815] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L816] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L819] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L841] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2109=0, t2110=1, t2111=2, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L843] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L843] RET 0 assume_abort_if_not(main$tmp_guard0) [L845] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L845] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L845] EXPR 0 \read(y) [L845] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L845] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L845] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L846] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L847] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L848] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L849] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2109=0, t2110=1, t2111=2, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L852] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L853] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L853] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L853] EXPR 0 \read(*__unbuffered_p0_EAX$read_delayed_var) [L853] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L853] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L853] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L854] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p0_EAX == 1 && __unbuffered_p0_EBX == 0 && __unbuffered_p2_EAX == 2) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2109=0, t2110=1, t2111=2, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L856] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L18] 0 __assert_fail ("0", "safe014_rmo.oepc.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=1, __unbuffered_p0_EBX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 835]: 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: 837]: 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: 839]: 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, 108 locations, 47 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: 14.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 483 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 473 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1338 IncrementalHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 1 mSDtfsCounter, 1338 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=5, InterpolantAutomatonStates: 51, 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, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 1137 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1525 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 [2024-11-10 18:00:59,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample