./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:34:48,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:34:48,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:34:48,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:34:48,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:34:48,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:34:48,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:34:48,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:34:48,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:34:48,821 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:34:48,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:34:48,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:34:48,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:34:48,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:34:48,824 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:34:48,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:34:48,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:34:48,825 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:34:48,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:34:48,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:34:48,826 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:34:48,827 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:34:48,830 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:34:48,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:34:48,831 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:34:48,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:34:48,831 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:34:48,831 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:34:48,831 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:34:48,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:34:48,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:34:48,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:34:48,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:34:48,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:34:48,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:34:48,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:34:48,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:34:48,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:34:48,833 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:34:48,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:34:48,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:34:48,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:34:48,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 [2024-11-09 10:34:49,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:34:49,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:34:49,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:34:49,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:34:49,087 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:34:49,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-09 10:34:50,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:34:50,650 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:34:50,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-09 10:34:50,663 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de479cce/c3016555c3e249699f63fdd9cb7ae66c/FLAGbab8bc0eb [2024-11-09 10:34:50,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de479cce/c3016555c3e249699f63fdd9cb7ae66c [2024-11-09 10:34:50,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:34:50,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:34:50,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:34:50,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:34:50,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:34:50,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:34:50" (1/1) ... [2024-11-09 10:34:50,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4977b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:50, skipping insertion in model container [2024-11-09 10:34:50,687 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:34:50" (1/1) ... [2024-11-09 10:34:50,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:34:51,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:34:51,052 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:34:51,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:34:51,130 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:34:51,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51 WrapperNode [2024-11-09 10:34:51,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:34:51,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:34:51,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:34:51,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:34:51,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,180 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-11-09 10:34:51,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:34:51,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:34:51,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:34:51,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:34:51,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,196 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,207 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 10:34:51,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:34:51,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:34:51,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:34:51,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:34:51,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (1/1) ... [2024-11-09 10:34:51,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:34:51,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:34:51,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:34:51,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:34:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:34:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:34:51,297 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 10:34:51,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 10:34:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 10:34:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 10:34:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 10:34:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 10:34:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:34:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:34:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:34:51,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:34:51,301 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:34:51,402 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:34:51,404 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:34:51,547 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:34:51,547 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:34:51,629 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:34:51,631 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:34:51,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:34:51 BoogieIcfgContainer [2024-11-09 10:34:51,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:34:51,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:34:51,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:34:51,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:34:51,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:34:50" (1/3) ... [2024-11-09 10:34:51,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f31271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:34:51, skipping insertion in model container [2024-11-09 10:34:51,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:34:51" (2/3) ... [2024-11-09 10:34:51,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f31271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:34:51, skipping insertion in model container [2024-11-09 10:34:51,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:34:51" (3/3) ... [2024-11-09 10:34:51,641 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-09 10:34:51,655 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:34:51,655 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 10:34:51,655 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:34:51,696 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:34:51,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-09 10:34:51,763 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-09 10:34:51,763 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:34:51,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-09 10:34:51,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-09 10:34:51,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-11-09 10:34:51,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:34:51,791 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;@740b703a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:34:51,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-09 10:34:51,808 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:34:51,809 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-09 10:34:51,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:34:51,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:51,810 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:51,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:51,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:51,816 INFO L85 PathProgramCache]: Analyzing trace with hash 136525165, now seen corresponding path program 1 times [2024-11-09 10:34:51,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:51,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132168772] [2024-11-09 10:34:51,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:51,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:52,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:52,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132168772] [2024-11-09 10:34:52,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132168772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:52,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:52,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:34:52,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599455837] [2024-11-09 10:34:52,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:52,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:34:52,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:52,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:34:52,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:34:52,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-11-09 10:34:52,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:52,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:52,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-11-09 10:34:52,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:52,260 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-11-09 10:34:52,260 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:34:52,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1179 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-11-09 10:34:52,265 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-11-09 10:34:52,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-11-09 10:34:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:34:52,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:34:52,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-11-09 10:34:52,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-11-09 10:34:52,277 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-11-09 10:34:52,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-11-09 10:34:52,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 10:34:52,281 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-11-09 10:34:52,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-11-09 10:34:52,286 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-11-09 10:34:52,287 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-11-09 10:34:52,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:52,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:52,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:52,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:34:52,288 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:52,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash 136526718, now seen corresponding path program 1 times [2024-11-09 10:34:52,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:52,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774746818] [2024-11-09 10:34:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:52,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:52,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:52,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774746818] [2024-11-09 10:34:52,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774746818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:52,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:52,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:34:52,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772104754] [2024-11-09 10:34:52,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:52,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:34:52,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:52,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:34:52,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:34:52,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-09 10:34:52,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2024-11-09 10:34:52,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:52,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-09 10:34:52,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:53,066 INFO L124 PetriNetUnfolderBase]: 2017/3652 cut-off events. [2024-11-09 10:34:53,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:34:53,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6758 conditions, 3652 events. 2017/3652 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 26620 event pairs, 489 based on Foata normal form. 0/3511 useless extension candidates. Maximal degree in co-relation 6752. Up to 965 conditions per place. [2024-11-09 10:34:53,090 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 30 selfloop transitions, 7 changer transitions 61/112 dead transitions. [2024-11-09 10:34:53,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 112 transitions, 432 flow [2024-11-09 10:34:53,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:34:53,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:34:53,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 262 transitions. [2024-11-09 10:34:53,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-11-09 10:34:53,093 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 262 transitions. [2024-11-09 10:34:53,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 112 transitions, 432 flow [2024-11-09 10:34:53,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 112 transitions, 431 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:34:53,099 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 173 flow [2024-11-09 10:34:53,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=173, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2024-11-09 10:34:53,100 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-09 10:34:53,101 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 173 flow [2024-11-09 10:34:53,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 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) [2024-11-09 10:34:53,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:53,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:53,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:34:53,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:53,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:53,104 INFO L85 PathProgramCache]: Analyzing trace with hash -26836259, now seen corresponding path program 1 times [2024-11-09 10:34:53,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:53,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915156971] [2024-11-09 10:34:53,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:53,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:53,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:53,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915156971] [2024-11-09 10:34:53,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915156971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:53,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:53,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:34:53,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635599177] [2024-11-09 10:34:53,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:53,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:34:53,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:53,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:34:53,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:34:53,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-09 10:34:53,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:53,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:53,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-09 10:34:53,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:53,671 INFO L124 PetriNetUnfolderBase]: 1351/2639 cut-off events. [2024-11-09 10:34:53,671 INFO L125 PetriNetUnfolderBase]: For 4731/4739 co-relation queries the response was YES. [2024-11-09 10:34:53,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8055 conditions, 2639 events. 1351/2639 cut-off events. For 4731/4739 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 18885 event pairs, 204 based on Foata normal form. 82/2704 useless extension candidates. Maximal degree in co-relation 8040. Up to 774 conditions per place. [2024-11-09 10:34:53,690 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 37 selfloop transitions, 8 changer transitions 58/117 dead transitions. [2024-11-09 10:34:53,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 117 transitions, 835 flow [2024-11-09 10:34:53,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:34:53,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:34:53,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 273 transitions. [2024-11-09 10:34:53,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6204545454545455 [2024-11-09 10:34:53,696 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 173 flow. Second operand 10 states and 273 transitions. [2024-11-09 10:34:53,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 117 transitions, 835 flow [2024-11-09 10:34:53,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 117 transitions, 717 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-11-09 10:34:53,717 INFO L231 Difference]: Finished difference. Result has 66 places, 44 transitions, 233 flow [2024-11-09 10:34:53,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=233, PETRI_PLACES=66, PETRI_TRANSITIONS=44} [2024-11-09 10:34:53,719 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-09 10:34:53,719 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 44 transitions, 233 flow [2024-11-09 10:34:53,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:53,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:53,720 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:53,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:34:53,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:53,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:53,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1841796569, now seen corresponding path program 1 times [2024-11-09 10:34:53,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:53,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783357608] [2024-11-09 10:34:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:53,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:53,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:53,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783357608] [2024-11-09 10:34:53,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783357608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:53,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:53,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:34:53,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111744812] [2024-11-09 10:34:53,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:53,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:34:53,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:53,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:34:53,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:34:53,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-09 10:34:53,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 44 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:53,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:53,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-09 10:34:53,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:54,195 INFO L124 PetriNetUnfolderBase]: 1199/2335 cut-off events. [2024-11-09 10:34:54,195 INFO L125 PetriNetUnfolderBase]: For 6712/6716 co-relation queries the response was YES. [2024-11-09 10:34:54,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7907 conditions, 2335 events. 1199/2335 cut-off events. For 6712/6716 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 16334 event pairs, 115 based on Foata normal form. 75/2390 useless extension candidates. Maximal degree in co-relation 7885. Up to 662 conditions per place. [2024-11-09 10:34:54,211 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 43 selfloop transitions, 12 changer transitions 52/121 dead transitions. [2024-11-09 10:34:54,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 121 transitions, 919 flow [2024-11-09 10:34:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:34:54,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:34:54,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 271 transitions. [2024-11-09 10:34:54,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.615909090909091 [2024-11-09 10:34:54,213 INFO L175 Difference]: Start difference. First operand has 66 places, 44 transitions, 233 flow. Second operand 10 states and 271 transitions. [2024-11-09 10:34:54,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 121 transitions, 919 flow [2024-11-09 10:34:54,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 121 transitions, 872 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-11-09 10:34:54,229 INFO L231 Difference]: Finished difference. Result has 75 places, 50 transitions, 355 flow [2024-11-09 10:34:54,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=355, PETRI_PLACES=75, PETRI_TRANSITIONS=50} [2024-11-09 10:34:54,230 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-11-09 10:34:54,230 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 50 transitions, 355 flow [2024-11-09 10:34:54,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:54,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:54,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:54,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:34:54,231 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:54,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:54,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1965037120, now seen corresponding path program 1 times [2024-11-09 10:34:54,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:54,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295305128] [2024-11-09 10:34:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:54,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:54,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295305128] [2024-11-09 10:34:54,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295305128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:54,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:54,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:34:54,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801548786] [2024-11-09 10:34:54,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:54,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:34:54,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:54,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:34:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:34:54,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-09 10:34:54,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:54,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:54,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-09 10:34:54,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:54,701 INFO L124 PetriNetUnfolderBase]: 1033/2072 cut-off events. [2024-11-09 10:34:54,702 INFO L125 PetriNetUnfolderBase]: For 7777/7777 co-relation queries the response was YES. [2024-11-09 10:34:54,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7611 conditions, 2072 events. 1033/2072 cut-off events. For 7777/7777 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 14515 event pairs, 166 based on Foata normal form. 60/2096 useless extension candidates. Maximal degree in co-relation 7581. Up to 576 conditions per place. [2024-11-09 10:34:54,719 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 44 selfloop transitions, 18 changer transitions 48/124 dead transitions. [2024-11-09 10:34:54,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 124 transitions, 1087 flow [2024-11-09 10:34:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:34:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:34:54,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 269 transitions. [2024-11-09 10:34:54,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6113636363636363 [2024-11-09 10:34:54,721 INFO L175 Difference]: Start difference. First operand has 75 places, 50 transitions, 355 flow. Second operand 10 states and 269 transitions. [2024-11-09 10:34:54,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 124 transitions, 1087 flow [2024-11-09 10:34:54,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 124 transitions, 1013 flow, removed 35 selfloop flow, removed 7 redundant places. [2024-11-09 10:34:54,741 INFO L231 Difference]: Finished difference. Result has 80 places, 55 transitions, 480 flow [2024-11-09 10:34:54,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=480, PETRI_PLACES=80, PETRI_TRANSITIONS=55} [2024-11-09 10:34:54,742 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2024-11-09 10:34:54,742 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 55 transitions, 480 flow [2024-11-09 10:34:54,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:54,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:54,742 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:54,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:34:54,743 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:54,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:54,743 INFO L85 PathProgramCache]: Analyzing trace with hash -424267733, now seen corresponding path program 1 times [2024-11-09 10:34:54,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:54,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374837110] [2024-11-09 10:34:54,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:54,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:54,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:54,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374837110] [2024-11-09 10:34:54,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374837110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:54,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:54,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:34:54,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218430628] [2024-11-09 10:34:54,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:54,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:34:54,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:54,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:34:54,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:34:54,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-09 10:34:54,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 55 transitions, 480 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:54,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:54,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-09 10:34:54,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:55,085 INFO L124 PetriNetUnfolderBase]: 652/1452 cut-off events. [2024-11-09 10:34:55,085 INFO L125 PetriNetUnfolderBase]: For 6660/6822 co-relation queries the response was YES. [2024-11-09 10:34:55,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5469 conditions, 1452 events. 652/1452 cut-off events. For 6660/6822 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10034 event pairs, 227 based on Foata normal form. 61/1431 useless extension candidates. Maximal degree in co-relation 5435. Up to 759 conditions per place. [2024-11-09 10:34:55,096 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 28 selfloop transitions, 9 changer transitions 21/89 dead transitions. [2024-11-09 10:34:55,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 89 transitions, 878 flow [2024-11-09 10:34:55,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:34:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:34:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 200 transitions. [2024-11-09 10:34:55,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6493506493506493 [2024-11-09 10:34:55,098 INFO L175 Difference]: Start difference. First operand has 80 places, 55 transitions, 480 flow. Second operand 7 states and 200 transitions. [2024-11-09 10:34:55,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 89 transitions, 878 flow [2024-11-09 10:34:55,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 89 transitions, 832 flow, removed 20 selfloop flow, removed 7 redundant places. [2024-11-09 10:34:55,111 INFO L231 Difference]: Finished difference. Result has 78 places, 61 transitions, 589 flow [2024-11-09 10:34:55,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=589, PETRI_PLACES=78, PETRI_TRANSITIONS=61} [2024-11-09 10:34:55,113 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 30 predicate places. [2024-11-09 10:34:55,114 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 61 transitions, 589 flow [2024-11-09 10:34:55,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:55,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:55,114 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:55,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:34:55,115 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:55,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:55,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1320669226, now seen corresponding path program 1 times [2024-11-09 10:34:55,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:55,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367781843] [2024-11-09 10:34:55,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:55,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:55,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:55,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367781843] [2024-11-09 10:34:55,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367781843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:55,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:55,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:34:55,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740011382] [2024-11-09 10:34:55,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:55,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:34:55,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:55,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:34:55,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:34:55,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44 [2024-11-09 10:34:55,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 61 transitions, 589 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:55,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:55,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44 [2024-11-09 10:34:55,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:55,504 INFO L124 PetriNetUnfolderBase]: 882/1946 cut-off events. [2024-11-09 10:34:55,504 INFO L125 PetriNetUnfolderBase]: For 8209/8330 co-relation queries the response was YES. [2024-11-09 10:34:55,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7109 conditions, 1946 events. 882/1946 cut-off events. For 8209/8330 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 15117 event pairs, 380 based on Foata normal form. 63/1909 useless extension candidates. Maximal degree in co-relation 7074. Up to 682 conditions per place. [2024-11-09 10:34:55,521 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 23 selfloop transitions, 6 changer transitions 22/87 dead transitions. [2024-11-09 10:34:55,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 87 transitions, 792 flow [2024-11-09 10:34:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:34:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:34:55,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2024-11-09 10:34:55,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6168831168831169 [2024-11-09 10:34:55,523 INFO L175 Difference]: Start difference. First operand has 78 places, 61 transitions, 589 flow. Second operand 7 states and 190 transitions. [2024-11-09 10:34:55,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 87 transitions, 792 flow [2024-11-09 10:34:55,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 87 transitions, 757 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-11-09 10:34:55,537 INFO L231 Difference]: Finished difference. Result has 77 places, 59 transitions, 553 flow [2024-11-09 10:34:55,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=553, PETRI_PLACES=77, PETRI_TRANSITIONS=59} [2024-11-09 10:34:55,539 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 29 predicate places. [2024-11-09 10:34:55,539 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 553 flow [2024-11-09 10:34:55,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:55,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:55,539 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:55,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:34:55,540 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:55,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:55,540 INFO L85 PathProgramCache]: Analyzing trace with hash -362027068, now seen corresponding path program 2 times [2024-11-09 10:34:55,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:55,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939721811] [2024-11-09 10:34:55,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:55,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:55,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:55,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939721811] [2024-11-09 10:34:55,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939721811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:55,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:55,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:34:55,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641262604] [2024-11-09 10:34:55,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:55,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:34:55,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:55,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:34:55,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:34:55,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-09 10:34:55,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 59 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:55,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:55,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-09 10:34:55,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:56,020 INFO L124 PetriNetUnfolderBase]: 1007/2108 cut-off events. [2024-11-09 10:34:56,021 INFO L125 PetriNetUnfolderBase]: For 11166/11170 co-relation queries the response was YES. [2024-11-09 10:34:56,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8061 conditions, 2108 events. 1007/2108 cut-off events. For 11166/11170 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 15495 event pairs, 216 based on Foata normal form. 40/2107 useless extension candidates. Maximal degree in co-relation 8028. Up to 519 conditions per place. [2024-11-09 10:34:56,041 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 39 selfloop transitions, 25 changer transitions 29/107 dead transitions. [2024-11-09 10:34:56,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 107 transitions, 1038 flow [2024-11-09 10:34:56,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:34:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:34:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2024-11-09 10:34:56,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5840909090909091 [2024-11-09 10:34:56,044 INFO L175 Difference]: Start difference. First operand has 77 places, 59 transitions, 553 flow. Second operand 10 states and 257 transitions. [2024-11-09 10:34:56,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 107 transitions, 1038 flow [2024-11-09 10:34:56,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 107 transitions, 990 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-09 10:34:56,061 INFO L231 Difference]: Finished difference. Result has 85 places, 58 transitions, 606 flow [2024-11-09 10:34:56,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=606, PETRI_PLACES=85, PETRI_TRANSITIONS=58} [2024-11-09 10:34:56,061 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 37 predicate places. [2024-11-09 10:34:56,062 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 58 transitions, 606 flow [2024-11-09 10:34:56,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:56,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:56,062 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:56,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:34:56,062 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:56,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:56,062 INFO L85 PathProgramCache]: Analyzing trace with hash -2012873126, now seen corresponding path program 1 times [2024-11-09 10:34:56,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:56,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707668614] [2024-11-09 10:34:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:56,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:56,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:56,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707668614] [2024-11-09 10:34:56,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707668614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:56,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:56,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:34:56,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799220231] [2024-11-09 10:34:56,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:56,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:34:56,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:56,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:34:56,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:34:56,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-09 10:34:56,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 58 transitions, 606 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:56,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:56,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-09 10:34:56,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:56,436 INFO L124 PetriNetUnfolderBase]: 1578/3060 cut-off events. [2024-11-09 10:34:56,436 INFO L125 PetriNetUnfolderBase]: For 7297/7420 co-relation queries the response was YES. [2024-11-09 10:34:56,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8024 conditions, 3060 events. 1578/3060 cut-off events. For 7297/7420 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 22386 event pairs, 361 based on Foata normal form. 159/3074 useless extension candidates. Maximal degree in co-relation 7985. Up to 1415 conditions per place. [2024-11-09 10:34:56,456 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 27 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2024-11-09 10:34:56,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 73 transitions, 704 flow [2024-11-09 10:34:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:34:56,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:34:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-09 10:34:56,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-11-09 10:34:56,457 INFO L175 Difference]: Start difference. First operand has 85 places, 58 transitions, 606 flow. Second operand 4 states and 122 transitions. [2024-11-09 10:34:56,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 73 transitions, 704 flow [2024-11-09 10:34:56,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 682 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-11-09 10:34:56,473 INFO L231 Difference]: Finished difference. Result has 78 places, 62 transitions, 622 flow [2024-11-09 10:34:56,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=622, PETRI_PLACES=78, PETRI_TRANSITIONS=62} [2024-11-09 10:34:56,474 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 30 predicate places. [2024-11-09 10:34:56,474 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 62 transitions, 622 flow [2024-11-09 10:34:56,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:56,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:56,476 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] [2024-11-09 10:34:56,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:34:56,477 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:56,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:56,477 INFO L85 PathProgramCache]: Analyzing trace with hash -742989281, now seen corresponding path program 1 times [2024-11-09 10:34:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039051243] [2024-11-09 10:34:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:56,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:56,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039051243] [2024-11-09 10:34:56,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039051243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:56,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:56,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:34:56,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264804084] [2024-11-09 10:34:56,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:56,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:34:56,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:56,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:34:56,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:34:56,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-09 10:34:56,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 62 transitions, 622 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:56,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:56,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-09 10:34:56,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:56,836 INFO L124 PetriNetUnfolderBase]: 1308/2566 cut-off events. [2024-11-09 10:34:56,836 INFO L125 PetriNetUnfolderBase]: For 3217/3781 co-relation queries the response was YES. [2024-11-09 10:34:56,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7120 conditions, 2566 events. 1308/2566 cut-off events. For 3217/3781 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 17935 event pairs, 125 based on Foata normal form. 176/2616 useless extension candidates. Maximal degree in co-relation 7083. Up to 1112 conditions per place. [2024-11-09 10:34:56,851 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 34 selfloop transitions, 8 changer transitions 0/83 dead transitions. [2024-11-09 10:34:56,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 769 flow [2024-11-09 10:34:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:34:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:34:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-11-09 10:34:56,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-09 10:34:56,853 INFO L175 Difference]: Start difference. First operand has 78 places, 62 transitions, 622 flow. Second operand 5 states and 154 transitions. [2024-11-09 10:34:56,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 769 flow [2024-11-09 10:34:56,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 83 transitions, 750 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-09 10:34:56,861 INFO L231 Difference]: Finished difference. Result has 81 places, 66 transitions, 658 flow [2024-11-09 10:34:56,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=658, PETRI_PLACES=81, PETRI_TRANSITIONS=66} [2024-11-09 10:34:56,862 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 33 predicate places. [2024-11-09 10:34:56,862 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 66 transitions, 658 flow [2024-11-09 10:34:56,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:56,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:56,863 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] [2024-11-09 10:34:56,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 10:34:56,863 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:56,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:56,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1866851105, now seen corresponding path program 1 times [2024-11-09 10:34:56,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:56,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400948425] [2024-11-09 10:34:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:56,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:56,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:56,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:56,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400948425] [2024-11-09 10:34:56,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400948425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:56,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:56,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:34:56,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99242733] [2024-11-09 10:34:56,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:56,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:34:56,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:56,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:34:56,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:34:56,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-09 10:34:56,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 66 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:56,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:56,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-09 10:34:56,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:57,194 INFO L124 PetriNetUnfolderBase]: 1044/1978 cut-off events. [2024-11-09 10:34:57,195 INFO L125 PetriNetUnfolderBase]: For 3947/5253 co-relation queries the response was YES. [2024-11-09 10:34:57,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6513 conditions, 1978 events. 1044/1978 cut-off events. For 3947/5253 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 12982 event pairs, 57 based on Foata normal form. 159/2019 useless extension candidates. Maximal degree in co-relation 6475. Up to 840 conditions per place. [2024-11-09 10:34:57,204 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 26 selfloop transitions, 11 changer transitions 23/85 dead transitions. [2024-11-09 10:34:57,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 795 flow [2024-11-09 10:34:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:34:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:34:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-11-09 10:34:57,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2024-11-09 10:34:57,206 INFO L175 Difference]: Start difference. First operand has 81 places, 66 transitions, 658 flow. Second operand 6 states and 178 transitions. [2024-11-09 10:34:57,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 795 flow [2024-11-09 10:34:57,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 85 transitions, 735 flow, removed 19 selfloop flow, removed 9 redundant places. [2024-11-09 10:34:57,215 INFO L231 Difference]: Finished difference. Result has 79 places, 50 transitions, 386 flow [2024-11-09 10:34:57,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=79, PETRI_TRANSITIONS=50} [2024-11-09 10:34:57,216 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 31 predicate places. [2024-11-09 10:34:57,216 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 50 transitions, 386 flow [2024-11-09 10:34:57,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:57,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:34:57,217 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] [2024-11-09 10:34:57,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 10:34:57,219 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:34:57,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:34:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1633046737, now seen corresponding path program 1 times [2024-11-09 10:34:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:34:57,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628555006] [2024-11-09 10:34:57,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:34:57,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:34:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:34:57,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:34:57,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:34:57,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628555006] [2024-11-09 10:34:57,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628555006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:34:57,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:34:57,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:34:57,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651898522] [2024-11-09 10:34:57,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:34:57,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:34:57,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:34:57,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:34:57,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:34:57,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 44 [2024-11-09 10:34:57,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 50 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:57,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:34:57,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 44 [2024-11-09 10:34:57,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:34:57,453 INFO L124 PetriNetUnfolderBase]: 230/514 cut-off events. [2024-11-09 10:34:57,453 INFO L125 PetriNetUnfolderBase]: For 1558/1658 co-relation queries the response was YES. [2024-11-09 10:34:57,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 514 events. 230/514 cut-off events. For 1558/1658 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2770 event pairs, 29 based on Foata normal form. 16/463 useless extension candidates. Maximal degree in co-relation 1809. Up to 264 conditions per place. [2024-11-09 10:34:57,455 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2024-11-09 10:34:57,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 58 transitions, 464 flow [2024-11-09 10:34:57,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:34:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:34:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 154 transitions. [2024-11-09 10:34:57,457 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-09 10:34:57,457 INFO L175 Difference]: Start difference. First operand has 79 places, 50 transitions, 386 flow. Second operand 6 states and 154 transitions. [2024-11-09 10:34:57,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 58 transitions, 464 flow [2024-11-09 10:34:57,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 58 transitions, 354 flow, removed 14 selfloop flow, removed 15 redundant places. [2024-11-09 10:34:57,461 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-09 10:34:57,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-09 10:34:57,462 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-09 10:34:57,462 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-09 10:34:57,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:34:57,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-09 10:34:57,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-09 10:34:57,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-09 10:34:57,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-09 10:34:57,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-09 10:34:57,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 10:34:57,466 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:34:57,468 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 10:34:57,469 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 10:34:57,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:34:57 BasicIcfg [2024-11-09 10:34:57,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 10:34:57,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 10:34:57,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 10:34:57,481 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 10:34:57,481 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:34:51" (3/4) ... [2024-11-09 10:34:57,483 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 10:34:57,486 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-09 10:34:57,486 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-09 10:34:57,486 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-09 10:34:57,490 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-09 10:34:57,490 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 10:34:57,490 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 10:34:57,490 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 10:34:57,565 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 10:34:57,565 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 10:34:57,565 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 10:34:57,566 INFO L158 Benchmark]: Toolchain (without parser) took 6887.33ms. Allocated memory was 157.3MB in the beginning and 341.8MB in the end (delta: 184.5MB). Free memory was 83.5MB in the beginning and 190.5MB in the end (delta: -107.0MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2024-11-09 10:34:57,566 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 157.3MB. Free memory was 109.7MB in the beginning and 109.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:34:57,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.58ms. Allocated memory is still 157.3MB. Free memory was 83.4MB in the beginning and 118.0MB in the end (delta: -34.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 10:34:57,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.75ms. Allocated memory is still 157.3MB. Free memory was 118.0MB in the beginning and 115.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:34:57,567 INFO L158 Benchmark]: Boogie Preprocessor took 38.93ms. Allocated memory is still 157.3MB. Free memory was 115.9MB in the beginning and 113.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:34:57,567 INFO L158 Benchmark]: RCFGBuilder took 408.55ms. Allocated memory is still 157.3MB. Free memory was 113.8MB in the beginning and 94.1MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 10:34:57,567 INFO L158 Benchmark]: TraceAbstraction took 5845.86ms. Allocated memory was 157.3MB in the beginning and 341.8MB in the end (delta: 184.5MB). Free memory was 93.2MB in the beginning and 195.7MB in the end (delta: -102.5MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2024-11-09 10:34:57,567 INFO L158 Benchmark]: Witness Printer took 84.84ms. Allocated memory is still 341.8MB. Free memory was 194.7MB in the beginning and 190.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 10:34:57,568 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 157.3MB. Free memory was 109.7MB in the beginning and 109.6MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.58ms. Allocated memory is still 157.3MB. Free memory was 83.4MB in the beginning and 118.0MB in the end (delta: -34.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.75ms. Allocated memory is still 157.3MB. Free memory was 118.0MB in the beginning and 115.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.93ms. Allocated memory is still 157.3MB. Free memory was 115.9MB in the beginning and 113.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.55ms. Allocated memory is still 157.3MB. Free memory was 113.8MB in the beginning and 94.1MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5845.86ms. Allocated memory was 157.3MB in the beginning and 341.8MB in the end (delta: 184.5MB). Free memory was 93.2MB in the beginning and 195.7MB in the end (delta: -102.5MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. * Witness Printer took 84.84ms. Allocated memory is still 341.8MB. Free memory was 194.7MB in the beginning and 190.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 5 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: 5.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 512 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 463 mSDsluCounter, 291 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 200 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1116 IncrementalHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 91 mSDtfsCounter, 1116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=658occurred in iteration=10, InterpolantAutomatonStates: 87, 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, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 10:34:57,589 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: TRUE