./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:31:32,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:31:32,209 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:31:32,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:31:32,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:31:32,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:31:32,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:31:32,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:31:32,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:31:32,232 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:31:32,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:31:32,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:31:32,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:31:32,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:31:32,234 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:31:32,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:31:32,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:31:32,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:31:32,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:31:32,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:31:32,236 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:31:32,236 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:31:32,237 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:31:32,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:31:32,237 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:31:32,237 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:31:32,238 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:31:32,238 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:31:32,238 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:31:32,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:31:32,239 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:31:32,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:31:32,239 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:31:32,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:31:32,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:31:32,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:31:32,240 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:31:32,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:31:32,240 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:31:32,241 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:31:32,241 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:31:32,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:31:32,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e [2024-10-14 19:31:32,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:31:32,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:31:32,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:31:32,507 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:31:32,507 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:31:32,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2024-10-14 19:31:34,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:31:34,292 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:31:34,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2024-10-14 19:31:34,319 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab51ce55/a54555f1db584d1791fa1aee3bc98a08/FLAGd580b3bc3 [2024-10-14 19:31:34,332 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab51ce55/a54555f1db584d1791fa1aee3bc98a08 [2024-10-14 19:31:34,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:31:34,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:31:34,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:31:34,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:31:34,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:31:34,346 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:34,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a347e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34, skipping insertion in model container [2024-10-14 19:31:34,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:34,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:31:34,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:31:34,794 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:31:34,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:31:34,918 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:31:34,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34 WrapperNode [2024-10-14 19:31:34,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:31:34,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:31:34,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:31:34,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:31:34,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:34,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,044 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 138 [2024-10-14 19:31:35,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:31:35,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:31:35,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:31:35,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:31:35,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,102 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 19:31:35,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:31:35,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:31:35,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:31:35,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:31:35,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (1/1) ... [2024-10-14 19:31:35,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:31:35,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:31:35,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 19:31:35,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 19:31:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:31:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:31:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 19:31:35,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 19:31:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 19:31:35,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 19:31:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 19:31:35,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 19:31:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-14 19:31:35,223 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-14 19:31:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:31:35,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:31:35,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:31:35,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:31:35,225 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:31:35,323 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:31:35,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:31:35,507 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:31:35,508 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:31:35,618 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:31:35,618 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:31:35,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:35 BoogieIcfgContainer [2024-10-14 19:31:35,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:31:35,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:31:35,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:31:35,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:31:35,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:31:34" (1/3) ... [2024-10-14 19:31:35,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dc2cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:31:35, skipping insertion in model container [2024-10-14 19:31:35,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:34" (2/3) ... [2024-10-14 19:31:35,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dc2cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:31:35, skipping insertion in model container [2024-10-14 19:31:35,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:35" (3/3) ... [2024-10-14 19:31:35,625 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040.opt.i [2024-10-14 19:31:35,636 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:31:35,637 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-14 19:31:35,637 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:31:35,683 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:31:35,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-14 19:31:35,731 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-14 19:31:35,731 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:35,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-10-14 19:31:35,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-14 19:31:35,736 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-14 19:31:35,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:31:35,747 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;@634a88e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:31:35,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 19:31:35,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:31:35,755 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-14 19:31:35,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:35,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:35,755 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:35,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:35,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash 621942298, now seen corresponding path program 1 times [2024-10-14 19:31:35,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:35,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313644252] [2024-10-14 19:31:35,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:35,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:36,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:36,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:36,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313644252] [2024-10-14 19:31:36,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313644252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:36,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:36,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:31:36,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938765858] [2024-10-14 19:31:36,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:36,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:31:36,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:36,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:31:36,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:31:36,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 55 [2024-10-14 19:31:36,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:36,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:36,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 55 [2024-10-14 19:31:36,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:36,435 INFO L124 PetriNetUnfolderBase]: 931/1851 cut-off events. [2024-10-14 19:31:36,435 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:36,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3247 conditions, 1851 events. 931/1851 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 14079 event pairs, 199 based on Foata normal form. 96/1902 useless extension candidates. Maximal degree in co-relation 3235. Up to 1021 conditions per place. [2024-10-14 19:31:36,449 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 29 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-10-14 19:31:36,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 194 flow [2024-10-14 19:31:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:31:36,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:31:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-10-14 19:31:36,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7575757575757576 [2024-10-14 19:31:36,459 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 125 transitions. [2024-10-14 19:31:36,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 194 flow [2024-10-14 19:31:36,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:31:36,464 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-14 19:31:36,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-14 19:31:36,467 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-14 19:31:36,468 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-14 19:31:36,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:36,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:36,468 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:36,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:31:36,469 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:36,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:36,469 INFO L85 PathProgramCache]: Analyzing trace with hash -821113853, now seen corresponding path program 1 times [2024-10-14 19:31:36,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:36,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68937893] [2024-10-14 19:31:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:36,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:36,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:36,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68937893] [2024-10-14 19:31:36,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68937893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:36,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:36,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:31:36,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230504868] [2024-10-14 19:31:36,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:36,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:31:36,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:36,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:31:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:31:36,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-10-14 19:31:36,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:36,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:36,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-10-14 19:31:36,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:36,718 INFO L124 PetriNetUnfolderBase]: 815/1519 cut-off events. [2024-10-14 19:31:36,718 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-10-14 19:31:36,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2833 conditions, 1519 events. 815/1519 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11270 event pairs, 815 based on Foata normal form. 48/1486 useless extension candidates. Maximal degree in co-relation 2823. Up to 1188 conditions per place. [2024-10-14 19:31:36,728 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 19 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-14 19:31:36,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 144 flow [2024-10-14 19:31:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:31:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:31:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-10-14 19:31:36,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6424242424242425 [2024-10-14 19:31:36,730 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 106 transitions. [2024-10-14 19:31:36,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 144 flow [2024-10-14 19:31:36,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:31:36,731 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-14 19:31:36,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-14 19:31:36,732 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-14 19:31:36,732 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-14 19:31:36,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:36,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:36,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:36,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:31:36,733 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:36,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:36,734 INFO L85 PathProgramCache]: Analyzing trace with hash -821112502, now seen corresponding path program 1 times [2024-10-14 19:31:36,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:36,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114492980] [2024-10-14 19:31:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:36,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:36,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:36,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114492980] [2024-10-14 19:31:36,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114492980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:36,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:36,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:31:36,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59425945] [2024-10-14 19:31:36,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:36,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:31:36,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:36,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:31:36,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:31:36,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-14 19:31:36,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:36,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:36,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-14 19:31:36,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:37,386 INFO L124 PetriNetUnfolderBase]: 3857/6079 cut-off events. [2024-10-14 19:31:37,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:37,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11545 conditions, 6079 events. 3857/6079 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 42252 event pairs, 536 based on Foata normal form. 180/6240 useless extension candidates. Maximal degree in co-relation 11539. Up to 3346 conditions per place. [2024-10-14 19:31:37,414 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 44 selfloop transitions, 6 changer transitions 1/70 dead transitions. [2024-10-14 19:31:37,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 70 transitions, 258 flow [2024-10-14 19:31:37,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:31:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:31:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-10-14 19:31:37,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6772727272727272 [2024-10-14 19:31:37,417 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 4 states and 149 transitions. [2024-10-14 19:31:37,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 70 transitions, 258 flow [2024-10-14 19:31:37,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 70 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:31:37,420 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 139 flow [2024-10-14 19:31:37,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-10-14 19:31:37,421 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2024-10-14 19:31:37,421 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 139 flow [2024-10-14 19:31:37,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:37,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:37,421 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] [2024-10-14 19:31:37,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:31:37,422 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:37,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash -769250489, now seen corresponding path program 1 times [2024-10-14 19:31:37,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:37,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101448300] [2024-10-14 19:31:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:37,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:37,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:37,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101448300] [2024-10-14 19:31:37,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101448300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:37,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:37,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:31:37,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459240794] [2024-10-14 19:31:37,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:37,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:37,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:37,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:37,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:37,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-14 19:31:37,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:37,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:37,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-14 19:31:37,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:38,143 INFO L124 PetriNetUnfolderBase]: 3272/5182 cut-off events. [2024-10-14 19:31:38,143 INFO L125 PetriNetUnfolderBase]: For 1395/1395 co-relation queries the response was YES. [2024-10-14 19:31:38,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11814 conditions, 5182 events. 3272/5182 cut-off events. For 1395/1395 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 34874 event pairs, 192 based on Foata normal form. 174/5339 useless extension candidates. Maximal degree in co-relation 11805. Up to 2581 conditions per place. [2024-10-14 19:31:38,172 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 56 selfloop transitions, 10 changer transitions 1/86 dead transitions. [2024-10-14 19:31:38,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 86 transitions, 378 flow [2024-10-14 19:31:38,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:31:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:31:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-10-14 19:31:38,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-10-14 19:31:38,176 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 139 flow. Second operand 5 states and 189 transitions. [2024-10-14 19:31:38,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 86 transitions, 378 flow [2024-10-14 19:31:38,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 367 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-14 19:31:38,179 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 191 flow [2024-10-14 19:31:38,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-10-14 19:31:38,180 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-10-14 19:31:38,180 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 191 flow [2024-10-14 19:31:38,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:38,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:38,181 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:38,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:31:38,181 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:38,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:38,181 INFO L85 PathProgramCache]: Analyzing trace with hash 286700912, now seen corresponding path program 1 times [2024-10-14 19:31:38,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:38,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067823068] [2024-10-14 19:31:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:38,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:38,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:38,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:38,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067823068] [2024-10-14 19:31:38,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067823068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:38,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:38,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:31:38,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570839275] [2024-10-14 19:31:38,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:38,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:38,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:38,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:38,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:38,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-14 19:31:38,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:38,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:38,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-14 19:31:38,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:38,731 INFO L124 PetriNetUnfolderBase]: 2201/3465 cut-off events. [2024-10-14 19:31:38,731 INFO L125 PetriNetUnfolderBase]: For 2772/2772 co-relation queries the response was YES. [2024-10-14 19:31:38,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8968 conditions, 3465 events. 2201/3465 cut-off events. For 2772/2772 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 20542 event pairs, 69 based on Foata normal form. 140/3588 useless extension candidates. Maximal degree in co-relation 8957. Up to 1221 conditions per place. [2024-10-14 19:31:38,746 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 66 selfloop transitions, 14 changer transitions 1/100 dead transitions. [2024-10-14 19:31:38,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 497 flow [2024-10-14 19:31:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:31:38,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:31:38,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 227 transitions. [2024-10-14 19:31:38,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6878787878787879 [2024-10-14 19:31:38,747 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 191 flow. Second operand 6 states and 227 transitions. [2024-10-14 19:31:38,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 497 flow [2024-10-14 19:31:38,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 100 transitions, 467 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-14 19:31:38,752 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 241 flow [2024-10-14 19:31:38,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2024-10-14 19:31:38,753 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-10-14 19:31:38,753 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 241 flow [2024-10-14 19:31:38,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:38,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:38,753 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:38,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:31:38,754 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:38,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:38,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1335231665, now seen corresponding path program 1 times [2024-10-14 19:31:38,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:38,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721537829] [2024-10-14 19:31:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:38,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:38,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:38,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:38,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721537829] [2024-10-14 19:31:38,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721537829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:38,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:38,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:38,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924648956] [2024-10-14 19:31:38,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:38,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:31:38,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:38,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:31:38,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:31:38,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-14 19:31:38,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 241 flow. Second operand has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:38,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:38,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-14 19:31:38,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:39,407 INFO L124 PetriNetUnfolderBase]: 1353/2045 cut-off events. [2024-10-14 19:31:39,407 INFO L125 PetriNetUnfolderBase]: For 3118/3118 co-relation queries the response was YES. [2024-10-14 19:31:39,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6057 conditions, 2045 events. 1353/2045 cut-off events. For 3118/3118 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 10013 event pairs, 39 based on Foata normal form. 72/2100 useless extension candidates. Maximal degree in co-relation 6045. Up to 668 conditions per place. [2024-10-14 19:31:39,418 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 18 changer transitions 1/98 dead transitions. [2024-10-14 19:31:39,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 98 transitions, 499 flow [2024-10-14 19:31:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:31:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:31:39,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 249 transitions. [2024-10-14 19:31:39,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6467532467532467 [2024-10-14 19:31:39,420 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 241 flow. Second operand 7 states and 249 transitions. [2024-10-14 19:31:39,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 98 transitions, 499 flow [2024-10-14 19:31:39,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 98 transitions, 453 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-14 19:31:39,429 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 251 flow [2024-10-14 19:31:39,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2024-10-14 19:31:39,430 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-10-14 19:31:39,430 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 251 flow [2024-10-14 19:31:39,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:39,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:39,431 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:39,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:31:39,431 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:39,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:39,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2000086673, now seen corresponding path program 1 times [2024-10-14 19:31:39,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:39,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077879801] [2024-10-14 19:31:39,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:39,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:39,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:39,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077879801] [2024-10-14 19:31:39,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077879801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:39,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:39,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:39,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678261261] [2024-10-14 19:31:39,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:39,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:39,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:39,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:39,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:39,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-10-14 19:31:39,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:39,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:39,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-10-14 19:31:39,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:40,542 INFO L124 PetriNetUnfolderBase]: 5179/8526 cut-off events. [2024-10-14 19:31:40,542 INFO L125 PetriNetUnfolderBase]: For 3828/4029 co-relation queries the response was YES. [2024-10-14 19:31:40,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19622 conditions, 8526 events. 5179/8526 cut-off events. For 3828/4029 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 59978 event pairs, 1282 based on Foata normal form. 32/7972 useless extension candidates. Maximal degree in co-relation 19609. Up to 2662 conditions per place. [2024-10-14 19:31:40,581 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 51 selfloop transitions, 9 changer transitions 27/116 dead transitions. [2024-10-14 19:31:40,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 116 transitions, 575 flow [2024-10-14 19:31:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 19:31:40,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 19:31:40,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2024-10-14 19:31:40,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6022727272727273 [2024-10-14 19:31:40,583 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 251 flow. Second operand 8 states and 265 transitions. [2024-10-14 19:31:40,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 116 transitions, 575 flow [2024-10-14 19:31:40,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 116 transitions, 459 flow, removed 27 selfloop flow, removed 10 redundant places. [2024-10-14 19:31:40,624 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 219 flow [2024-10-14 19:31:40,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=219, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-10-14 19:31:40,625 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2024-10-14 19:31:40,625 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 219 flow [2024-10-14 19:31:40,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:40,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:40,625 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:40,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 19:31:40,626 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:40,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:40,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1892822933, now seen corresponding path program 2 times [2024-10-14 19:31:40,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:40,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552818426] [2024-10-14 19:31:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:40,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:40,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:40,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552818426] [2024-10-14 19:31:40,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552818426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:40,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:40,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:40,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477774069] [2024-10-14 19:31:40,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:40,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:40,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:40,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:40,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:40,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-14 19:31:40,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:40,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:40,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-14 19:31:40,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:41,797 INFO L124 PetriNetUnfolderBase]: 5240/9467 cut-off events. [2024-10-14 19:31:41,797 INFO L125 PetriNetUnfolderBase]: For 1124/1377 co-relation queries the response was YES. [2024-10-14 19:31:41,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20172 conditions, 9467 events. 5240/9467 cut-off events. For 1124/1377 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 75986 event pairs, 1578 based on Foata normal form. 149/8790 useless extension candidates. Maximal degree in co-relation 20158. Up to 3590 conditions per place. [2024-10-14 19:31:41,856 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 46 selfloop transitions, 3 changer transitions 12/98 dead transitions. [2024-10-14 19:31:41,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 98 transitions, 442 flow [2024-10-14 19:31:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:31:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:31:41,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2024-10-14 19:31:41,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6454545454545455 [2024-10-14 19:31:41,858 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 219 flow. Second operand 6 states and 213 transitions. [2024-10-14 19:31:41,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 98 transitions, 442 flow [2024-10-14 19:31:41,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 98 transitions, 430 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-10-14 19:31:41,861 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 241 flow [2024-10-14 19:31:41,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2024-10-14 19:31:41,862 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-10-14 19:31:41,862 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 241 flow [2024-10-14 19:31:41,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:41,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:41,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:41,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 19:31:41,863 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:41,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:41,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1480990155, now seen corresponding path program 3 times [2024-10-14 19:31:41,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:41,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697620571] [2024-10-14 19:31:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:41,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:42,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:42,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697620571] [2024-10-14 19:31:42,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697620571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:42,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:42,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 19:31:42,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128863367] [2024-10-14 19:31:42,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:42,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 19:31:42,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:42,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 19:31:42,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 19:31:42,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-10-14 19:31:42,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 241 flow. Second operand has 8 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:42,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:42,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-10-14 19:31:42,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:44,449 INFO L124 PetriNetUnfolderBase]: 11318/19372 cut-off events. [2024-10-14 19:31:44,449 INFO L125 PetriNetUnfolderBase]: For 5993/6017 co-relation queries the response was YES. [2024-10-14 19:31:44,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43545 conditions, 19372 events. 11318/19372 cut-off events. For 5993/6017 co-relation queries the response was YES. Maximal size of possible extension queue 1270. Compared 164015 event pairs, 2155 based on Foata normal form. 36/18255 useless extension candidates. Maximal degree in co-relation 43530. Up to 4267 conditions per place. [2024-10-14 19:31:44,537 INFO L140 encePairwiseOnDemand]: 41/55 looper letters, 41 selfloop transitions, 20 changer transitions 75/165 dead transitions. [2024-10-14 19:31:44,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 165 transitions, 879 flow [2024-10-14 19:31:44,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 19:31:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 19:31:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 359 transitions. [2024-10-14 19:31:44,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5933884297520661 [2024-10-14 19:31:44,539 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 241 flow. Second operand 11 states and 359 transitions. [2024-10-14 19:31:44,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 165 transitions, 879 flow [2024-10-14 19:31:44,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 165 transitions, 872 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-10-14 19:31:44,556 INFO L231 Difference]: Finished difference. Result has 84 places, 71 transitions, 329 flow [2024-10-14 19:31:44,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=329, PETRI_PLACES=84, PETRI_TRANSITIONS=71} [2024-10-14 19:31:44,557 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2024-10-14 19:31:44,557 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 71 transitions, 329 flow [2024-10-14 19:31:44,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:44,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:44,558 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:44,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 19:31:44,558 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:44,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:44,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2010242135, now seen corresponding path program 4 times [2024-10-14 19:31:44,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:44,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952519340] [2024-10-14 19:31:44,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:44,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:44,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:44,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:44,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952519340] [2024-10-14 19:31:44,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952519340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:44,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:44,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:44,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993959680] [2024-10-14 19:31:44,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:44,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:44,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:44,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:44,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:44,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 55 [2024-10-14 19:31:44,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 71 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:44,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:44,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 55 [2024-10-14 19:31:44,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:45,190 INFO L124 PetriNetUnfolderBase]: 2372/4228 cut-off events. [2024-10-14 19:31:45,190 INFO L125 PetriNetUnfolderBase]: For 1976/1984 co-relation queries the response was YES. [2024-10-14 19:31:45,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9996 conditions, 4228 events. 2372/4228 cut-off events. For 1976/1984 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 29421 event pairs, 879 based on Foata normal form. 16/3829 useless extension candidates. Maximal degree in co-relation 9976. Up to 1826 conditions per place. [2024-10-14 19:31:45,208 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 33 selfloop transitions, 11 changer transitions 27/100 dead transitions. [2024-10-14 19:31:45,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 100 transitions, 577 flow [2024-10-14 19:31:45,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:31:45,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:31:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 191 transitions. [2024-10-14 19:31:45,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5787878787878787 [2024-10-14 19:31:45,210 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 329 flow. Second operand 6 states and 191 transitions. [2024-10-14 19:31:45,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 100 transitions, 577 flow [2024-10-14 19:31:45,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 100 transitions, 540 flow, removed 14 selfloop flow, removed 6 redundant places. [2024-10-14 19:31:45,217 INFO L231 Difference]: Finished difference. Result has 82 places, 65 transitions, 299 flow [2024-10-14 19:31:45,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=82, PETRI_TRANSITIONS=65} [2024-10-14 19:31:45,217 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2024-10-14 19:31:45,218 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 65 transitions, 299 flow [2024-10-14 19:31:45,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:45,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:45,218 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:45,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 19:31:45,218 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:45,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:45,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1820004037, now seen corresponding path program 5 times [2024-10-14 19:31:45,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:45,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140389002] [2024-10-14 19:31:45,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:45,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 19:31:45,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 19:31:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 19:31:45,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 19:31:45,319 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 19:31:45,319 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-10-14 19:31:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-10-14 19:31:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-10-14 19:31:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-10-14 19:31:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-10-14 19:31:45,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-10-14 19:31:45,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-10-14 19:31:45,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-10-14 19:31:45,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 19:31:45,322 INFO L407 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:45,423 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:31:45,425 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:31:45,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:31:45 BasicIcfg [2024-10-14 19:31:45,431 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:31:45,431 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:31:45,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:31:45,432 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:31:45,432 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:35" (3/4) ... [2024-10-14 19:31:45,433 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 19:31:45,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:31:45,435 INFO L158 Benchmark]: Toolchain (without parser) took 11098.49ms. Allocated memory was 186.6MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 118.7MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 418.2MB. Max. memory is 16.1GB. [2024-10-14 19:31:45,435 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 109.1MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:31:45,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.05ms. Allocated memory is still 186.6MB. Free memory was 118.5MB in the beginning and 153.8MB in the end (delta: -35.3MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2024-10-14 19:31:45,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.57ms. Allocated memory is still 186.6MB. Free memory was 153.8MB in the beginning and 151.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:31:45,437 INFO L158 Benchmark]: Boogie Preprocessor took 88.05ms. Allocated memory is still 186.6MB. Free memory was 151.5MB in the beginning and 147.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:31:45,437 INFO L158 Benchmark]: RCFGBuilder took 479.46ms. Allocated memory is still 186.6MB. Free memory was 147.8MB in the beginning and 99.0MB in the end (delta: 48.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-10-14 19:31:45,437 INFO L158 Benchmark]: TraceAbstraction took 9810.11ms. Allocated memory was 186.6MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 98.2MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 396.8MB. Max. memory is 16.1GB. [2024-10-14 19:31:45,437 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 2.5GB. Free memory is still 2.0GB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:31:45,439 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 109.1MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.05ms. Allocated memory is still 186.6MB. Free memory was 118.5MB in the beginning and 153.8MB in the end (delta: -35.3MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.57ms. Allocated memory is still 186.6MB. Free memory was 153.8MB in the beginning and 151.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.05ms. Allocated memory is still 186.6MB. Free memory was 151.5MB in the beginning and 147.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 479.46ms. Allocated memory is still 186.6MB. Free memory was 147.8MB in the beginning and 99.0MB in the end (delta: 48.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9810.11ms. Allocated memory was 186.6MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 98.2MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 396.8MB. Max. memory is 16.1GB. * Witness Printer took 3.16ms. Allocated memory is still 2.5GB. Free memory is still 2.0GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L854] 0 pthread_t t1061; [L855] FCALL, FORK 0 pthread_create(&t1061, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061=-3, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L856] 0 pthread_t t1062; [L857] FCALL, FORK 0 pthread_create(&t1062, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061=-3, t1062=-2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L858] 0 pthread_t t1063; [L859] FCALL, FORK 0 pthread_create(&t1063, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061=-3, t1062=-2, t1063=-1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L860] 0 pthread_t t1064; [L861] FCALL, FORK 0 pthread_create(&t1064, ((void *)0), P3, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061=-3, t1062=-2, t1063=-1, t1064=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L810] 4 z$w_buff1 = z$w_buff0 [L811] 4 z$w_buff0 = 1 [L812] 4 z$w_buff1_used = z$w_buff0_used [L813] 4 z$w_buff0_used = (_Bool)1 [L814] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L814] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L815] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L816] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L817] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L818] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L819] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L820] 4 z$r_buff0_thd4 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L823] 4 a = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L826] 4 __unbuffered_p3_EAX = a VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L829] 4 __unbuffered_p3_EBX = b VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L752] 1 b = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L755] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L767] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L770] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L782] 3 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L785] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L786] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L787] 3 z$flush_delayed = weak$$choice2 [L788] 3 z$mem_tmp = z [L789] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L790] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L791] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L792] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L793] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L794] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L795] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 __unbuffered_p2_EAX = z [L797] 3 z = z$flush_delayed ? z$mem_tmp : z [L798] 3 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L832] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L833] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L834] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L835] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L836] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L839] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L863] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061=-3, t1062=-2, t1063=-1, t1064=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L865] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L865] RET 0 assume_abort_if_not(main$tmp_guard0) [L867] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L868] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L869] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L870] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L871] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061=-3, t1062=-2, t1063=-1, t1064=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L874] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061=-3, t1062=-2, t1063=-1, t1064=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L17] 0 __assert_fail ("0", "mix040.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 857]: 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: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 861]: 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 9 procedures, 89 locations, 8 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: 9.6s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 598 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 559 mSDsluCounter, 290 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 240 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1308 IncrementalHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 50 mSDtfsCounter, 1308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred in iteration=9, InterpolantAutomatonStates: 59, 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, 1.9s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 271 ConstructedInterpolants, 0 QuantifiedInterpolants, 1524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 [2024-10-14 19:31:45,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.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 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:31:47,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:31:47,575 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-14 19:31:47,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:31:47,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:31:47,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:31:47,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:31:47,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:31:47,601 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:31:47,601 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:31:47,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:31:47,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:31:47,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:31:47,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:31:47,605 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:31:47,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:31:47,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:31:47,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:31:47,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:31:47,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:31:47,606 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:31:47,609 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:31:47,609 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:31:47,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:31:47,609 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:31:47,610 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 19:31:47,610 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:31:47,610 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 19:31:47,612 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:31:47,613 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:31:47,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:31:47,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:31:47,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:31:47,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:31:47,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:31:47,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:31:47,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:31:47,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:31:47,614 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 19:31:47,614 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 19:31:47,614 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:31:47,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:31:47,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:31:47,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:31:47,615 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 19:31:47,615 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 -> 9adb0e975425d9a1b173bce1a766592f39d0541cd50cefd6e228e1140c2f9f3e [2024-10-14 19:31:47,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:31:47,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:31:47,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:31:47,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:31:47,911 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:31:47,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2024-10-14 19:31:49,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:31:49,528 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:31:49,529 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040.opt.i [2024-10-14 19:31:49,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cab5a2d/6e0da4459e93461f8cabbd95846be381/FLAG80467910d [2024-10-14 19:31:49,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cab5a2d/6e0da4459e93461f8cabbd95846be381 [2024-10-14 19:31:49,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:31:49,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:31:49,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:31:49,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:31:49,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:31:49,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:31:49" (1/1) ... [2024-10-14 19:31:49,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f614db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:49, skipping insertion in model container [2024-10-14 19:31:49,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:31:49" (1/1) ... [2024-10-14 19:31:49,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:31:49,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:31:49,964 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:31:50,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:31:50,077 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:31:50,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50 WrapperNode [2024-10-14 19:31:50,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:31:50,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:31:50,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:31:50,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:31:50,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,125 INFO L138 Inliner]: procedures = 177, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 139 [2024-10-14 19:31:50,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:31:50,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:31:50,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:31:50,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:31:50,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,161 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 19:31:50,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,169 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:31:50,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:31:50,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:31:50,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:31:50,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (1/1) ... [2024-10-14 19:31:50,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:31:50,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:31:50,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 19:31:50,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 19:31:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:31:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:31:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 19:31:50,262 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 19:31:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 19:31:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 19:31:50,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 19:31:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 19:31:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 19:31:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-14 19:31:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-14 19:31:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:31:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:31:50,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:31:50,265 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:31:50,411 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:31:50,413 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:31:50,697 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:31:50,697 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:31:50,893 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:31:50,893 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:31:50,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:50 BoogieIcfgContainer [2024-10-14 19:31:50,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:31:50,895 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:31:50,895 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:31:50,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:31:50,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:31:49" (1/3) ... [2024-10-14 19:31:50,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdf5512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:31:50, skipping insertion in model container [2024-10-14 19:31:50,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:31:50" (2/3) ... [2024-10-14 19:31:50,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bdf5512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:31:50, skipping insertion in model container [2024-10-14 19:31:50,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:50" (3/3) ... [2024-10-14 19:31:50,904 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040.opt.i [2024-10-14 19:31:50,918 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:31:50,918 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-14 19:31:50,919 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:31:50,979 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:31:51,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-14 19:31:51,037 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-14 19:31:51,038 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:51,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-10-14 19:31:51,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-14 19:31:51,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-14 19:31:51,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:31:51,061 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;@5b8f7a23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:31:51,062 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 19:31:51,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:31:51,071 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-14 19:31:51,071 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:51,071 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:51,072 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:51,072 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:51,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:51,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1933801306, now seen corresponding path program 1 times [2024-10-14 19:31:51,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:51,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254570835] [2024-10-14 19:31:51,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:51,087 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 [2024-10-14 19:31:51,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:51,090 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) [2024-10-14 19:31:51,091 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 [2024-10-14 19:31:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:51,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 19:31:51,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:51,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:51,216 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:51,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:51,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254570835] [2024-10-14 19:31:51,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254570835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:51,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:51,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:31:51,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047713308] [2024-10-14 19:31:51,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:51,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:31:51,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:51,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:31:51,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:31:51,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 55 [2024-10-14 19:31:51,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:51,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:51,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 55 [2024-10-14 19:31:51,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:51,587 INFO L124 PetriNetUnfolderBase]: 931/1851 cut-off events. [2024-10-14 19:31:51,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:51,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3247 conditions, 1851 events. 931/1851 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 14079 event pairs, 199 based on Foata normal form. 96/1902 useless extension candidates. Maximal degree in co-relation 3235. Up to 1021 conditions per place. [2024-10-14 19:31:51,606 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 29 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-10-14 19:31:51,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 194 flow [2024-10-14 19:31:51,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:31:51,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:31:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-10-14 19:31:51,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7575757575757576 [2024-10-14 19:31:51,618 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 125 transitions. [2024-10-14 19:31:51,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 194 flow [2024-10-14 19:31:51,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:31:51,625 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-14 19:31:51,627 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-14 19:31:51,630 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-14 19:31:51,630 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-14 19:31:51,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:51,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:51,631 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:51,641 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 [2024-10-14 19:31:51,832 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 [2024-10-14 19:31:51,832 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:51,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:51,833 INFO L85 PathProgramCache]: Analyzing trace with hash 257739269, now seen corresponding path program 1 times [2024-10-14 19:31:51,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:51,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526640817] [2024-10-14 19:31:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:51,834 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 [2024-10-14 19:31:51,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:51,862 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) [2024-10-14 19:31:51,865 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 [2024-10-14 19:31:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:51,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 19:31:51,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:52,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:52,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:52,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:52,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526640817] [2024-10-14 19:31:52,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526640817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:52,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:52,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:31:52,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727242182] [2024-10-14 19:31:52,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:52,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:31:52,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:52,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:31:52,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:31:52,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-14 19:31:52,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:52,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:52,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-14 19:31:52,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:53,048 INFO L124 PetriNetUnfolderBase]: 4352/6922 cut-off events. [2024-10-14 19:31:53,048 INFO L125 PetriNetUnfolderBase]: For 312/312 co-relation queries the response was YES. [2024-10-14 19:31:53,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13369 conditions, 6922 events. 4352/6922 cut-off events. For 312/312 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 49347 event pairs, 536 based on Foata normal form. 180/7083 useless extension candidates. Maximal degree in co-relation 13359. Up to 4015 conditions per place. [2024-10-14 19:31:53,082 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 45 selfloop transitions, 6 changer transitions 1/72 dead transitions. [2024-10-14 19:31:53,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 72 transitions, 270 flow [2024-10-14 19:31:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:31:53,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:31:53,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-10-14 19:31:53,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2024-10-14 19:31:53,084 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 4 states and 150 transitions. [2024-10-14 19:31:53,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 72 transitions, 270 flow [2024-10-14 19:31:53,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:31:53,087 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 142 flow [2024-10-14 19:31:53,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-10-14 19:31:53,087 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -2 predicate places. [2024-10-14 19:31:53,088 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 142 flow [2024-10-14 19:31:53,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:53,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:53,088 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] [2024-10-14 19:31:53,097 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 (3)] Ended with exit code 0 [2024-10-14 19:31:53,290 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 [2024-10-14 19:31:53,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:53,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 745388224, now seen corresponding path program 1 times [2024-10-14 19:31:53,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:53,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098767357] [2024-10-14 19:31:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:53,292 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 [2024-10-14 19:31:53,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:53,294 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) [2024-10-14 19:31:53,296 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 [2024-10-14 19:31:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:53,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 19:31:53,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:53,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:53,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:53,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:53,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098767357] [2024-10-14 19:31:53,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098767357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:53,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:53,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:31:53,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146554202] [2024-10-14 19:31:53,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:53,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:53,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:53,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:53,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:53,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-14 19:31:53,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:53,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:53,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-14 19:31:53,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:53,997 INFO L124 PetriNetUnfolderBase]: 3648/5838 cut-off events. [2024-10-14 19:31:53,998 INFO L125 PetriNetUnfolderBase]: For 1511/1511 co-relation queries the response was YES. [2024-10-14 19:31:54,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13101 conditions, 5838 events. 3648/5838 cut-off events. For 1511/1511 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 40407 event pairs, 192 based on Foata normal form. 174/5995 useless extension candidates. Maximal degree in co-relation 13089. Up to 3097 conditions per place. [2024-10-14 19:31:54,036 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 57 selfloop transitions, 10 changer transitions 1/88 dead transitions. [2024-10-14 19:31:54,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 88 transitions, 383 flow [2024-10-14 19:31:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:31:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:31:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 190 transitions. [2024-10-14 19:31:54,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-10-14 19:31:54,038 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 142 flow. Second operand 5 states and 190 transitions. [2024-10-14 19:31:54,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 88 transitions, 383 flow [2024-10-14 19:31:54,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 88 transitions, 372 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-14 19:31:54,042 INFO L231 Difference]: Finished difference. Result has 64 places, 54 transitions, 194 flow [2024-10-14 19:31:54,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2024-10-14 19:31:54,043 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2024-10-14 19:31:54,043 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 194 flow [2024-10-14 19:31:54,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:54,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:54,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:54,047 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 [2024-10-14 19:31:54,246 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 [2024-10-14 19:31:54,246 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:54,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:54,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1987704043, now seen corresponding path program 1 times [2024-10-14 19:31:54,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:54,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360608968] [2024-10-14 19:31:54,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:54,248 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 [2024-10-14 19:31:54,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:54,250 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) [2024-10-14 19:31:54,251 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 [2024-10-14 19:31:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:54,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 19:31:54,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:54,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:54,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:54,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360608968] [2024-10-14 19:31:54,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360608968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:54,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:54,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:31:54,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263809060] [2024-10-14 19:31:54,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:54,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:54,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:54,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-14 19:31:54,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:54,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:54,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-14 19:31:54,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:54,782 INFO L124 PetriNetUnfolderBase]: 2373/3781 cut-off events. [2024-10-14 19:31:54,783 INFO L125 PetriNetUnfolderBase]: For 2868/2868 co-relation queries the response was YES. [2024-10-14 19:31:54,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9591 conditions, 3781 events. 2373/3781 cut-off events. For 2868/2868 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 22948 event pairs, 69 based on Foata normal form. 140/3904 useless extension candidates. Maximal degree in co-relation 9577. Up to 1465 conditions per place. [2024-10-14 19:31:54,798 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 67 selfloop transitions, 14 changer transitions 1/102 dead transitions. [2024-10-14 19:31:54,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 102 transitions, 502 flow [2024-10-14 19:31:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:31:54,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:31:54,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 228 transitions. [2024-10-14 19:31:54,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-10-14 19:31:54,800 INFO L175 Difference]: Start difference. First operand has 64 places, 54 transitions, 194 flow. Second operand 6 states and 228 transitions. [2024-10-14 19:31:54,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 102 transitions, 502 flow [2024-10-14 19:31:54,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 472 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-14 19:31:54,806 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 244 flow [2024-10-14 19:31:54,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=244, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2024-10-14 19:31:54,806 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2024-10-14 19:31:54,806 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 244 flow [2024-10-14 19:31:54,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:54,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:54,807 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:54,813 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 [2024-10-14 19:31:55,007 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 [2024-10-14 19:31:55,009 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:55,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:55,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1480687060, now seen corresponding path program 1 times [2024-10-14 19:31:55,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:55,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621467373] [2024-10-14 19:31:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:55,011 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 [2024-10-14 19:31:55,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:55,015 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) [2024-10-14 19:31:55,016 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 [2024-10-14 19:31:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:55,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 19:31:55,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:55,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:55,148 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:55,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:55,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621467373] [2024-10-14 19:31:55,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621467373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:55,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:55,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:55,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964467762] [2024-10-14 19:31:55,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:55,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:31:55,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:55,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:31:55,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:31:55,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-14 19:31:55,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 244 flow. Second operand has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:55,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:55,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-14 19:31:55,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:55,504 INFO L124 PetriNetUnfolderBase]: 1385/2109 cut-off events. [2024-10-14 19:31:55,504 INFO L125 PetriNetUnfolderBase]: For 3118/3118 co-relation queries the response was YES. [2024-10-14 19:31:55,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6168 conditions, 2109 events. 1385/2109 cut-off events. For 3118/3118 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 10342 event pairs, 39 based on Foata normal form. 72/2164 useless extension candidates. Maximal degree in co-relation 6153. Up to 668 conditions per place. [2024-10-14 19:31:55,515 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 61 selfloop transitions, 18 changer transitions 1/100 dead transitions. [2024-10-14 19:31:55,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 100 transitions, 504 flow [2024-10-14 19:31:55,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:31:55,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:31:55,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 250 transitions. [2024-10-14 19:31:55,516 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6493506493506493 [2024-10-14 19:31:55,517 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 244 flow. Second operand 7 states and 250 transitions. [2024-10-14 19:31:55,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 100 transitions, 504 flow [2024-10-14 19:31:55,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 100 transitions, 458 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-14 19:31:55,526 INFO L231 Difference]: Finished difference. Result has 70 places, 58 transitions, 254 flow [2024-10-14 19:31:55,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=254, PETRI_PLACES=70, PETRI_TRANSITIONS=58} [2024-10-14 19:31:55,527 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-14 19:31:55,527 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 58 transitions, 254 flow [2024-10-14 19:31:55,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.571428571428573) internal successors, (186), 7 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:55,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:55,528 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:55,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-14 19:31:55,730 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 [2024-10-14 19:31:55,731 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:55,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:55,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1371981590, now seen corresponding path program 1 times [2024-10-14 19:31:55,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:55,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126707711] [2024-10-14 19:31:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:55,732 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 [2024-10-14 19:31:55,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:55,735 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) [2024-10-14 19:31:55,736 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 [2024-10-14 19:31:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:55,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 19:31:55,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:55,870 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:55,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:55,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126707711] [2024-10-14 19:31:55,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126707711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:55,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:55,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:31:55,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251623329] [2024-10-14 19:31:55,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:55,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:31:55,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:55,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:31:55,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:31:55,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-10-14 19:31:55,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 58 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:55,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:55,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-10-14 19:31:55,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:55,989 INFO L124 PetriNetUnfolderBase]: 590/1133 cut-off events. [2024-10-14 19:31:55,990 INFO L125 PetriNetUnfolderBase]: For 472/497 co-relation queries the response was YES. [2024-10-14 19:31:55,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2467 conditions, 1133 events. 590/1133 cut-off events. For 472/497 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6528 event pairs, 552 based on Foata normal form. 16/982 useless extension candidates. Maximal degree in co-relation 2451. Up to 871 conditions per place. [2024-10-14 19:31:55,998 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 19 selfloop transitions, 1 changer transitions 1/57 dead transitions. [2024-10-14 19:31:55,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 57 transitions, 294 flow [2024-10-14 19:31:55,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:31:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:31:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-10-14 19:31:55,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6424242424242425 [2024-10-14 19:31:55,999 INFO L175 Difference]: Start difference. First operand has 70 places, 58 transitions, 254 flow. Second operand 3 states and 106 transitions. [2024-10-14 19:31:55,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 57 transitions, 294 flow [2024-10-14 19:31:56,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 57 transitions, 198 flow, removed 17 selfloop flow, removed 10 redundant places. [2024-10-14 19:31:56,001 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 156 flow [2024-10-14 19:31:56,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=61, PETRI_TRANSITIONS=56} [2024-10-14 19:31:56,002 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -1 predicate places. [2024-10-14 19:31:56,002 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 156 flow [2024-10-14 19:31:56,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:56,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:56,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:56,011 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 [2024-10-14 19:31:56,206 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 [2024-10-14 19:31:56,207 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:56,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:56,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1007227215, now seen corresponding path program 1 times [2024-10-14 19:31:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:56,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574453064] [2024-10-14 19:31:56,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:56,208 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 [2024-10-14 19:31:56,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:56,211 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) [2024-10-14 19:31:56,212 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 [2024-10-14 19:31:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:56,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 19:31:56,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:56,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:56,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:56,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574453064] [2024-10-14 19:31:56,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574453064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:56,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:56,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:31:56,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805488429] [2024-10-14 19:31:56,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:56,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:56,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:56,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:56,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:56,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-14 19:31:56,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:56,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:56,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-14 19:31:56,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:56,718 INFO L124 PetriNetUnfolderBase]: 1656/2900 cut-off events. [2024-10-14 19:31:56,719 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:31:56,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5707 conditions, 2900 events. 1656/2900 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 17979 event pairs, 667 based on Foata normal form. 16/2679 useless extension candidates. Maximal degree in co-relation 5700. Up to 1165 conditions per place. [2024-10-14 19:31:56,732 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 32 selfloop transitions, 2 changer transitions 14/81 dead transitions. [2024-10-14 19:31:56,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 81 transitions, 306 flow [2024-10-14 19:31:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:31:56,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:31:56,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 179 transitions. [2024-10-14 19:31:56,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6509090909090909 [2024-10-14 19:31:56,734 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 156 flow. Second operand 5 states and 179 transitions. [2024-10-14 19:31:56,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 81 transitions, 306 flow [2024-10-14 19:31:56,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 81 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:31:56,736 INFO L231 Difference]: Finished difference. Result has 66 places, 57 transitions, 171 flow [2024-10-14 19:31:56,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=171, PETRI_PLACES=66, PETRI_TRANSITIONS=57} [2024-10-14 19:31:56,736 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-10-14 19:31:56,737 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 57 transitions, 171 flow [2024-10-14 19:31:56,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:56,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:56,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:56,746 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 [2024-10-14 19:31:56,940 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 [2024-10-14 19:31:56,941 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:56,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1418874177, now seen corresponding path program 2 times [2024-10-14 19:31:56,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:56,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848396451] [2024-10-14 19:31:56,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 19:31:56,943 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 [2024-10-14 19:31:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:56,945 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) [2024-10-14 19:31:56,946 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 [2024-10-14 19:31:57,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 19:31:57,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:31:57,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 19:31:57,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:57,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:57,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:57,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:57,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848396451] [2024-10-14 19:31:57,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848396451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:57,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:57,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 19:31:57,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888394854] [2024-10-14 19:31:57,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:57,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 19:31:57,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:57,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 19:31:57,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 19:31:57,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-10-14 19:31:57,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 171 flow. Second operand has 8 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:57,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:57,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-10-14 19:31:57,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:57,631 INFO L124 PetriNetUnfolderBase]: 1651/3131 cut-off events. [2024-10-14 19:31:57,632 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-14 19:31:57,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6018 conditions, 3131 events. 1651/3131 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 21513 event pairs, 437 based on Foata normal form. 16/2833 useless extension candidates. Maximal degree in co-relation 6008. Up to 639 conditions per place. [2024-10-14 19:31:57,645 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 32 selfloop transitions, 5 changer transitions 16/89 dead transitions. [2024-10-14 19:31:57,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 345 flow [2024-10-14 19:31:57,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:31:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:31:57,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 306 transitions. [2024-10-14 19:31:57,647 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6181818181818182 [2024-10-14 19:31:57,647 INFO L175 Difference]: Start difference. First operand has 66 places, 57 transitions, 171 flow. Second operand 9 states and 306 transitions. [2024-10-14 19:31:57,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 345 flow [2024-10-14 19:31:57,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 89 transitions, 337 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-10-14 19:31:57,649 INFO L231 Difference]: Finished difference. Result has 73 places, 58 transitions, 188 flow [2024-10-14 19:31:57,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=188, PETRI_PLACES=73, PETRI_TRANSITIONS=58} [2024-10-14 19:31:57,651 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-10-14 19:31:57,652 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 58 transitions, 188 flow [2024-10-14 19:31:57,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:57,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:57,652 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:57,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-10-14 19:31:57,853 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 [2024-10-14 19:31:57,854 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:57,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:57,857 INFO L85 PathProgramCache]: Analyzing trace with hash -34690191, now seen corresponding path program 3 times [2024-10-14 19:31:57,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:57,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149840671] [2024-10-14 19:31:57,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 19:31:57,857 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 [2024-10-14 19:31:57,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:57,860 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) [2024-10-14 19:31:57,861 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 (10)] Waiting until timeout for monitored process [2024-10-14 19:31:57,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-14 19:31:57,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:31:57,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 19:31:57,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:57,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:57,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:57,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149840671] [2024-10-14 19:31:57,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149840671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:57,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:57,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:31:57,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249018484] [2024-10-14 19:31:57,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:57,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:57,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:57,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:57,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:57,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-14 19:31:57,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 58 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:57,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:57,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-14 19:31:57,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:58,597 INFO L124 PetriNetUnfolderBase]: 4167/7308 cut-off events. [2024-10-14 19:31:58,598 INFO L125 PetriNetUnfolderBase]: For 1139/1173 co-relation queries the response was YES. [2024-10-14 19:31:58,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15262 conditions, 7308 events. 4167/7308 cut-off events. For 1139/1173 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 55558 event pairs, 1922 based on Foata normal form. 16/6385 useless extension candidates. Maximal degree in co-relation 15249. Up to 2720 conditions per place. [2024-10-14 19:31:58,690 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 37 selfloop transitions, 2 changer transitions 13/86 dead transitions. [2024-10-14 19:31:58,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 86 transitions, 373 flow [2024-10-14 19:31:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:31:58,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:31:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2024-10-14 19:31:58,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6581818181818182 [2024-10-14 19:31:58,695 INFO L175 Difference]: Start difference. First operand has 73 places, 58 transitions, 188 flow. Second operand 5 states and 181 transitions. [2024-10-14 19:31:58,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 86 transitions, 373 flow [2024-10-14 19:31:58,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 86 transitions, 353 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-14 19:31:58,704 INFO L231 Difference]: Finished difference. Result has 71 places, 59 transitions, 192 flow [2024-10-14 19:31:58,704 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=71, PETRI_TRANSITIONS=59} [2024-10-14 19:31:58,705 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2024-10-14 19:31:58,708 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 192 flow [2024-10-14 19:31:58,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:58,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:58,709 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:58,715 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 [2024-10-14 19:31:58,909 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 [2024-10-14 19:31:58,909 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:58,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:58,910 INFO L85 PathProgramCache]: Analyzing trace with hash 147846425, now seen corresponding path program 4 times [2024-10-14 19:31:58,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:31:58,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672063790] [2024-10-14 19:31:58,910 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 19:31:58,910 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 [2024-10-14 19:31:58,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:31:58,915 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) [2024-10-14 19:31:58,918 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 [2024-10-14 19:31:58,985 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 19:31:58,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 19:31:58,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 19:31:58,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 19:31:59,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:59,042 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 19:31:59,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 19:31:59,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672063790] [2024-10-14 19:31:59,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672063790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:59,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:59,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:59,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406456084] [2024-10-14 19:31:59,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:59,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 19:31:59,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:59,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:59,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-14 19:31:59,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:59,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:59,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-14 19:31:59,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:59,887 INFO L124 PetriNetUnfolderBase]: 6548/11677 cut-off events. [2024-10-14 19:31:59,887 INFO L125 PetriNetUnfolderBase]: For 970/978 co-relation queries the response was YES. [2024-10-14 19:31:59,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24143 conditions, 11677 events. 6548/11677 cut-off events. For 970/978 co-relation queries the response was YES. Maximal size of possible extension queue 835. Compared 97810 event pairs, 1914 based on Foata normal form. 18/10412 useless extension candidates. Maximal degree in co-relation 24131. Up to 4587 conditions per place. [2024-10-14 19:31:59,941 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 23 selfloop transitions, 1 changer transitions 35/94 dead transitions. [2024-10-14 19:31:59,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 408 flow [2024-10-14 19:31:59,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:31:59,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:31:59,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2024-10-14 19:31:59,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6454545454545455 [2024-10-14 19:31:59,943 INFO L175 Difference]: Start difference. First operand has 71 places, 59 transitions, 192 flow. Second operand 6 states and 213 transitions. [2024-10-14 19:31:59,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 408 flow [2024-10-14 19:31:59,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 94 transitions, 400 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-10-14 19:31:59,961 INFO L231 Difference]: Finished difference. Result has 75 places, 58 transitions, 192 flow [2024-10-14 19:31:59,961 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=75, PETRI_TRANSITIONS=58} [2024-10-14 19:31:59,961 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 13 predicate places. [2024-10-14 19:31:59,961 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 58 transitions, 192 flow [2024-10-14 19:31:59,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:59,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:59,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:59,968 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 [2024-10-14 19:32:00,164 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 [2024-10-14 19:32:00,164 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:32:00,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:32:00,165 INFO L85 PathProgramCache]: Analyzing trace with hash 459036359, now seen corresponding path program 5 times [2024-10-14 19:32:00,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 19:32:00,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823522966] [2024-10-14 19:32:00,165 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 19:32:00,165 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 [2024-10-14 19:32:00,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 19:32:00,167 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) [2024-10-14 19:32:00,169 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 [2024-10-14 19:32:00,234 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 19:32:00,235 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2024-10-14 19:32:00,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 19:32:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 19:32:00,323 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-14 19:32:00,323 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 19:32:00,324 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-10-14 19:32:00,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-10-14 19:32:00,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2024-10-14 19:32:00,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-10-14 19:32:00,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-10-14 19:32:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-10-14 19:32:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-10-14 19:32:00,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-10-14 19:32:00,335 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 [2024-10-14 19:32:00,531 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 [2024-10-14 19:32:00,532 INFO L407 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2024-10-14 19:32:00,595 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:32:00,595 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:32:00,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:32:00 BasicIcfg [2024-10-14 19:32:00,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:32:00,599 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:32:00,599 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:32:00,599 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:32:00,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:31:50" (3/4) ... [2024-10-14 19:32:00,600 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 19:32:00,601 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:32:00,602 INFO L158 Benchmark]: Toolchain (without parser) took 11044.87ms. Allocated memory was 100.7MB in the beginning and 658.5MB in the end (delta: 557.8MB). Free memory was 66.0MB in the beginning and 349.6MB in the end (delta: -283.6MB). Peak memory consumption was 274.2MB. Max. memory is 16.1GB. [2024-10-14 19:32:00,602 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:32:00,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.58ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 70.4MB in the end (delta: -4.7MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-10-14 19:32:00,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.29ms. Allocated memory is still 100.7MB. Free memory was 70.4MB in the beginning and 67.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:32:00,602 INFO L158 Benchmark]: Boogie Preprocessor took 59.85ms. Allocated memory is still 100.7MB. Free memory was 67.8MB in the beginning and 64.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:32:00,603 INFO L158 Benchmark]: RCFGBuilder took 707.76ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 64.5MB in the beginning and 81.7MB in the end (delta: -17.2MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-10-14 19:32:00,603 INFO L158 Benchmark]: TraceAbstraction took 9703.23ms. Allocated memory was 151.0MB in the beginning and 658.5MB in the end (delta: 507.5MB). Free memory was 81.1MB in the beginning and 350.6MB in the end (delta: -269.5MB). Peak memory consumption was 239.0MB. Max. memory is 16.1GB. [2024-10-14 19:32:00,603 INFO L158 Benchmark]: Witness Printer took 2.44ms. Allocated memory is still 658.5MB. Free memory was 350.6MB in the beginning and 349.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:32:00,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.58ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 70.4MB in the end (delta: -4.7MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.29ms. Allocated memory is still 100.7MB. Free memory was 70.4MB in the beginning and 67.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.85ms. Allocated memory is still 100.7MB. Free memory was 67.8MB in the beginning and 64.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 707.76ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 64.5MB in the beginning and 81.7MB in the end (delta: -17.2MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9703.23ms. Allocated memory was 151.0MB in the beginning and 658.5MB in the end (delta: 507.5MB). Free memory was 81.1MB in the beginning and 350.6MB in the end (delta: -269.5MB). Peak memory consumption was 239.0MB. Max. memory is 16.1GB. * Witness Printer took 2.44ms. Allocated memory is still 658.5MB. Free memory was 350.6MB in the beginning and 349.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L720] 0 int b = 0; [L721] 0 _Bool main$tmp_guard0; [L722] 0 _Bool main$tmp_guard1; [L724] 0 int x = 0; [L726] 0 int y = 0; [L728] 0 int z = 0; [L729] 0 _Bool z$flush_delayed; [L730] 0 int z$mem_tmp; [L731] 0 _Bool z$r_buff0_thd0; [L732] 0 _Bool z$r_buff0_thd1; [L733] 0 _Bool z$r_buff0_thd2; [L734] 0 _Bool z$r_buff0_thd3; [L735] 0 _Bool z$r_buff0_thd4; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$r_buff1_thd4; [L741] 0 _Bool z$read_delayed; [L742] 0 int *z$read_delayed_var; [L743] 0 int z$w_buff0; [L744] 0 _Bool z$w_buff0_used; [L745] 0 int z$w_buff1; [L746] 0 _Bool z$w_buff1_used; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L854] 0 pthread_t t1061; [L855] FCALL, FORK 0 pthread_create(&t1061, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L856] 0 pthread_t t1062; [L857] FCALL, FORK 0 pthread_create(&t1062, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061=0, t1062=1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L858] 0 pthread_t t1063; [L859] FCALL, FORK 0 pthread_create(&t1063, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061=0, t1062=1, t1063=2, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L860] 0 pthread_t t1064; [L861] FCALL, FORK 0 pthread_create(&t1064, ((void *)0), P3, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, t1061=0, t1062=1, t1063=2, t1064=3, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L810] 4 z$w_buff1 = z$w_buff0 [L811] 4 z$w_buff0 = 1 [L812] 4 z$w_buff1_used = z$w_buff0_used [L813] 4 z$w_buff0_used = (_Bool)1 [L814] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L814] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L815] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L816] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L817] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L818] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L819] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L820] 4 z$r_buff0_thd4 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L823] 4 a = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L826] 4 __unbuffered_p3_EAX = a VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L829] 4 __unbuffered_p3_EBX = b VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L752] 1 b = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L755] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L767] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L770] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L782] 3 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L785] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L786] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L787] 3 z$flush_delayed = weak$$choice2 [L788] 3 z$mem_tmp = z [L789] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L790] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L791] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L792] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L793] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L794] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L795] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 __unbuffered_p2_EAX = z [L797] 3 z = z$flush_delayed ? z$mem_tmp : z [L798] 3 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L832] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L833] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L834] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L835] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L836] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L760] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L839] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L863] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061=0, t1062=1, t1063=2, t1064=3, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L865] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L865] RET 0 assume_abort_if_not(main$tmp_guard0) [L867] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L868] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L869] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L870] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L871] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061=0, t1062=1, t1063=2, t1064=3, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L874] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1061=0, t1062=1, t1063=2, t1064=3, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L17] 0 __assert_fail ("0", "mix040.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 857]: 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: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 861]: 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 9 procedures, 89 locations, 8 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: 9.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 465 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 442 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1505 IncrementalHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 10 mSDtfsCounter, 1505 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 314 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=5, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 342 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 293 ConstructedInterpolants, 0 QuantifiedInterpolants, 842 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1194 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 [2024-10-14 19:32:00,639 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