./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:18:35,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:18:35,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:18:35,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:18:35,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:18:35,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:18:35,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:18:35,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:18:35,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:18:35,634 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:18:35,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:18:35,634 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:18:35,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:18:35,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:18:35,636 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:18:35,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:18:35,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:18:35,637 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:18:35,638 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:18:35,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:18:35,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:18:35,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:18:35,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:18:35,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:18:35,644 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:18:35,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:18:35,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:18:35,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:18:35,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:18:35,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:18:35,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:18:35,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:18:35,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:18:35,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:18:35,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:18:35,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:18:35,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:18:35,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:18:35,649 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:18:35,649 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:18:35,649 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:18:35,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:18:35,650 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 [2024-10-11 14:18:35,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:18:35,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:18:35,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:18:35,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:18:35,945 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:18:35,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 14:18:37,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:18:37,663 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:18:37,663 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 14:18:37,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e01e0985a/f8cab1b7a1124cb7845ee31d8fbcbefd/FLAG4c467c0ac [2024-10-11 14:18:37,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e01e0985a/f8cab1b7a1124cb7845ee31d8fbcbefd [2024-10-11 14:18:37,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:18:37,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:18:37,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:18:37,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:18:38,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:18:38,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:18:37" (1/1) ... [2024-10-11 14:18:38,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7b529e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38, skipping insertion in model container [2024-10-11 14:18:38,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:18:37" (1/1) ... [2024-10-11 14:18:38,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:18:38,227 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-10-11 14:18:38,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:18:38,366 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:18:38,379 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-10-11 14:18:38,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:18:38,489 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:18:38,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38 WrapperNode [2024-10-11 14:18:38,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:18:38,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:18:38,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:18:38,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:18:38,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,587 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-10-11 14:18:38,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:18:38,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:18:38,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:18:38,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:18:38,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,632 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 14:18:38,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:18:38,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:18:38,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:18:38,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:18:38,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (1/1) ... [2024-10-11 14:18:38,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:18:38,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:18:38,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:18:38,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:18:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 14:18:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:18:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 14:18:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 14:18:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 14:18:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 14:18:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 14:18:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 14:18:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:18:38,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 14:18:38,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:18:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:18:38,748 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 14:18:38,892 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:18:38,894 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:18:39,061 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:18:39,061 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:18:39,136 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:18:39,137 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:18:39,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:18:39 BoogieIcfgContainer [2024-10-11 14:18:39,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:18:39,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:18:39,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:18:39,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:18:39,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:18:37" (1/3) ... [2024-10-11 14:18:39,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614d1349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:18:39, skipping insertion in model container [2024-10-11 14:18:39,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:18:38" (2/3) ... [2024-10-11 14:18:39,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614d1349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:18:39, skipping insertion in model container [2024-10-11 14:18:39,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:18:39" (3/3) ... [2024-10-11 14:18:39,150 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 14:18:39,167 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:18:39,167 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:18:39,167 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:18:39,212 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 14:18:39,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-10-11 14:18:39,287 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-10-11 14:18:39,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:18:39,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-10-11 14:18:39,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-10-11 14:18:39,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-10-11 14:18:39,310 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:18:39,318 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=LoopHeads, 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;@134a48f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:18:39,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-11 14:18:39,337 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:18:39,337 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-10-11 14:18:39,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:18:39,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:39,338 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:18:39,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:39,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:39,347 INFO L85 PathProgramCache]: Analyzing trace with hash 958553775, now seen corresponding path program 1 times [2024-10-11 14:18:39,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:39,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804888980] [2024-10-11 14:18:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:39,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:40,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:40,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804888980] [2024-10-11 14:18:40,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804888980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:40,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:40,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:18:40,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134189207] [2024-10-11 14:18:40,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:40,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:18:40,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:40,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:18:40,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:18:40,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-11 14:18:40,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:40,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:40,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-11 14:18:40,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:40,568 INFO L124 PetriNetUnfolderBase]: 1129/2214 cut-off events. [2024-10-11 14:18:40,568 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-11 14:18:40,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4029 conditions, 2214 events. 1129/2214 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 16134 event pairs, 322 based on Foata normal form. 73/2218 useless extension candidates. Maximal degree in co-relation 4018. Up to 814 conditions per place. [2024-10-11 14:18:40,587 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 29 selfloop transitions, 6 changer transitions 35/83 dead transitions. [2024-10-11 14:18:40,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 83 transitions, 321 flow [2024-10-11 14:18:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:18:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 14:18:40,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-10-11 14:18:40,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6917293233082706 [2024-10-11 14:18:40,603 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 184 transitions. [2024-10-11 14:18:40,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 83 transitions, 321 flow [2024-10-11 14:18:40,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 316 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 14:18:40,612 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 144 flow [2024-10-11 14:18:40,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=144, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2024-10-11 14:18:40,620 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-10-11 14:18:40,621 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 144 flow [2024-10-11 14:18:40,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:40,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:40,621 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:18:40,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:18:40,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:40,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:40,623 INFO L85 PathProgramCache]: Analyzing trace with hash -339610418, now seen corresponding path program 1 times [2024-10-11 14:18:40,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:40,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206031595] [2024-10-11 14:18:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:40,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:40,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:40,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:40,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206031595] [2024-10-11 14:18:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206031595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:40,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:40,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:18:40,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110519431] [2024-10-11 14:18:40,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:40,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:18:40,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:40,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:18:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:18:40,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-11 14:18:40,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:40,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:40,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-11 14:18:40,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:41,305 INFO L124 PetriNetUnfolderBase]: 948/1926 cut-off events. [2024-10-11 14:18:41,306 INFO L125 PetriNetUnfolderBase]: For 2206/2214 co-relation queries the response was YES. [2024-10-11 14:18:41,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5299 conditions, 1926 events. 948/1926 cut-off events. For 2206/2214 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 13420 event pairs, 186 based on Foata normal form. 65/1949 useless extension candidates. Maximal degree in co-relation 5283. Up to 572 conditions per place. [2024-10-11 14:18:41,320 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 36 selfloop transitions, 7 changer transitions 52/108 dead transitions. [2024-10-11 14:18:41,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 108 transitions, 702 flow [2024-10-11 14:18:41,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 14:18:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 14:18:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 245 transitions. [2024-10-11 14:18:41,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6447368421052632 [2024-10-11 14:18:41,324 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 144 flow. Second operand 10 states and 245 transitions. [2024-10-11 14:18:41,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 108 transitions, 702 flow [2024-10-11 14:18:41,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 108 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:18:41,335 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 210 flow [2024-10-11 14:18:41,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2024-10-11 14:18:41,336 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-10-11 14:18:41,336 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 210 flow [2024-10-11 14:18:41,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:41,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:41,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:18:41,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:18:41,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:41,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:41,338 INFO L85 PathProgramCache]: Analyzing trace with hash -899264144, now seen corresponding path program 1 times [2024-10-11 14:18:41,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:41,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465471345] [2024-10-11 14:18:41,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:41,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:41,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:41,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465471345] [2024-10-11 14:18:41,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465471345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:41,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:41,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:18:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764301583] [2024-10-11 14:18:41,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:41,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:18:41,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:41,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:18:41,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:18:41,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-11 14:18:41,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:41,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:41,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-11 14:18:41,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:41,856 INFO L124 PetriNetUnfolderBase]: 779/1560 cut-off events. [2024-10-11 14:18:41,857 INFO L125 PetriNetUnfolderBase]: For 4177/4189 co-relation queries the response was YES. [2024-10-11 14:18:41,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4988 conditions, 1560 events. 779/1560 cut-off events. For 4177/4189 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10433 event pairs, 153 based on Foata normal form. 46/1560 useless extension candidates. Maximal degree in co-relation 4963. Up to 560 conditions per place. [2024-10-11 14:18:41,870 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 38 selfloop transitions, 11 changer transitions 40/102 dead transitions. [2024-10-11 14:18:41,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 102 transitions, 728 flow [2024-10-11 14:18:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 14:18:41,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 14:18:41,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 242 transitions. [2024-10-11 14:18:41,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6368421052631579 [2024-10-11 14:18:41,874 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 210 flow. Second operand 10 states and 242 transitions. [2024-10-11 14:18:41,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 102 transitions, 728 flow [2024-10-11 14:18:41,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 102 transitions, 675 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-10-11 14:18:41,891 INFO L231 Difference]: Finished difference. Result has 72 places, 45 transitions, 294 flow [2024-10-11 14:18:41,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=72, PETRI_TRANSITIONS=45} [2024-10-11 14:18:41,893 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-10-11 14:18:41,893 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 45 transitions, 294 flow [2024-10-11 14:18:41,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:41,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:41,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:18:41,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 14:18:41,894 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:41,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:41,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1219392237, now seen corresponding path program 1 times [2024-10-11 14:18:41,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:41,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948294422] [2024-10-11 14:18:41,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:41,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:42,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:42,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948294422] [2024-10-11 14:18:42,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948294422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:42,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:42,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:18:42,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45468801] [2024-10-11 14:18:42,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:42,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:18:42,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:42,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:18:42,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:18:42,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 38 [2024-10-11 14:18:42,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 45 transitions, 294 flow. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:42,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:42,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 38 [2024-10-11 14:18:42,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:42,254 INFO L124 PetriNetUnfolderBase]: 514/1098 cut-off events. [2024-10-11 14:18:42,254 INFO L125 PetriNetUnfolderBase]: For 3084/3190 co-relation queries the response was YES. [2024-10-11 14:18:42,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3493 conditions, 1098 events. 514/1098 cut-off events. For 3084/3190 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7468 event pairs, 227 based on Foata normal form. 66/1090 useless extension candidates. Maximal degree in co-relation 3460. Up to 494 conditions per place. [2024-10-11 14:18:42,265 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 20 selfloop transitions, 6 changer transitions 17/68 dead transitions. [2024-10-11 14:18:42,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 486 flow [2024-10-11 14:18:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:18:42,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 14:18:42,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 172 transitions. [2024-10-11 14:18:42,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6466165413533834 [2024-10-11 14:18:42,267 INFO L175 Difference]: Start difference. First operand has 72 places, 45 transitions, 294 flow. Second operand 7 states and 172 transitions. [2024-10-11 14:18:42,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 486 flow [2024-10-11 14:18:42,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 68 transitions, 432 flow, removed 25 selfloop flow, removed 9 redundant places. [2024-10-11 14:18:42,279 INFO L231 Difference]: Finished difference. Result has 68 places, 45 transitions, 284 flow [2024-10-11 14:18:42,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2024-10-11 14:18:42,281 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-10-11 14:18:42,282 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 45 transitions, 284 flow [2024-10-11 14:18:42,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:42,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:42,282 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:18:42,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:18:42,282 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:42,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:42,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1593557005, now seen corresponding path program 1 times [2024-10-11 14:18:42,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:42,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841773331] [2024-10-11 14:18:42,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:42,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:42,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841773331] [2024-10-11 14:18:42,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841773331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:42,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:42,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:18:42,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287456904] [2024-10-11 14:18:42,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:42,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:18:42,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:42,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:18:42,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:18:42,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-11 14:18:42,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 45 transitions, 284 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:42,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:42,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-11 14:18:42,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:42,620 INFO L124 PetriNetUnfolderBase]: 323/791 cut-off events. [2024-10-11 14:18:42,620 INFO L125 PetriNetUnfolderBase]: For 1261/1301 co-relation queries the response was YES. [2024-10-11 14:18:42,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 791 events. 323/791 cut-off events. For 1261/1301 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5211 event pairs, 129 based on Foata normal form. 24/753 useless extension candidates. Maximal degree in co-relation 2309. Up to 382 conditions per place. [2024-10-11 14:18:42,629 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 21 selfloop transitions, 5 changer transitions 15/68 dead transitions. [2024-10-11 14:18:42,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 68 transitions, 448 flow [2024-10-11 14:18:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:18:42,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 14:18:42,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-10-11 14:18:42,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6766917293233082 [2024-10-11 14:18:42,631 INFO L175 Difference]: Start difference. First operand has 68 places, 45 transitions, 284 flow. Second operand 7 states and 180 transitions. [2024-10-11 14:18:42,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 68 transitions, 448 flow [2024-10-11 14:18:42,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 412 flow, removed 12 selfloop flow, removed 10 redundant places. [2024-10-11 14:18:42,641 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 281 flow [2024-10-11 14:18:42,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=281, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2024-10-11 14:18:42,642 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2024-10-11 14:18:42,643 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 281 flow [2024-10-11 14:18:42,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:42,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:42,644 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] [2024-10-11 14:18:42,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 14:18:42,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:42,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:42,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1952470314, now seen corresponding path program 1 times [2024-10-11 14:18:42,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:42,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781697148] [2024-10-11 14:18:42,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:42,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:42,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:42,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781697148] [2024-10-11 14:18:42,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781697148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:42,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:42,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:18:42,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4476724] [2024-10-11 14:18:42,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:42,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:18:42,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:42,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:18:42,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:18:42,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-11 14:18:42,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 281 flow. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 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) [2024-10-11 14:18:42,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:42,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-11 14:18:42,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:43,185 INFO L124 PetriNetUnfolderBase]: 956/1923 cut-off events. [2024-10-11 14:18:43,185 INFO L125 PetriNetUnfolderBase]: For 4564/4570 co-relation queries the response was YES. [2024-10-11 14:18:43,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6030 conditions, 1923 events. 956/1923 cut-off events. For 4564/4570 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 13364 event pairs, 238 based on Foata normal form. 30/1921 useless extension candidates. Maximal degree in co-relation 6002. Up to 479 conditions per place. [2024-10-11 14:18:43,195 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 41 selfloop transitions, 8 changer transitions 36/97 dead transitions. [2024-10-11 14:18:43,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 97 transitions, 769 flow [2024-10-11 14:18:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 14:18:43,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 14:18:43,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 203 transitions. [2024-10-11 14:18:43,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5935672514619883 [2024-10-11 14:18:43,197 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 281 flow. Second operand 9 states and 203 transitions. [2024-10-11 14:18:43,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 97 transitions, 769 flow [2024-10-11 14:18:43,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 719 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-10-11 14:18:43,206 INFO L231 Difference]: Finished difference. Result has 71 places, 42 transitions, 284 flow [2024-10-11 14:18:43,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=284, PETRI_PLACES=71, PETRI_TRANSITIONS=42} [2024-10-11 14:18:43,207 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2024-10-11 14:18:43,207 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 42 transitions, 284 flow [2024-10-11 14:18:43,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 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) [2024-10-11 14:18:43,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:43,207 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:18:43,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 14:18:43,208 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:43,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:43,208 INFO L85 PathProgramCache]: Analyzing trace with hash -790067674, now seen corresponding path program 1 times [2024-10-11 14:18:43,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:43,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053072072] [2024-10-11 14:18:43,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:43,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:43,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:43,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053072072] [2024-10-11 14:18:43,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053072072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:43,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:43,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:18:43,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542863295] [2024-10-11 14:18:43,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:43,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:18:43,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:43,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:18:43,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:18:43,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-11 14:18:43,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 42 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:43,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:43,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-11 14:18:43,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:43,442 INFO L124 PetriNetUnfolderBase]: 592/1208 cut-off events. [2024-10-11 14:18:43,443 INFO L125 PetriNetUnfolderBase]: For 1216/1238 co-relation queries the response was YES. [2024-10-11 14:18:43,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 1208 events. 592/1208 cut-off events. For 1216/1238 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7858 event pairs, 130 based on Foata normal form. 63/1222 useless extension candidates. Maximal degree in co-relation 2791. Up to 528 conditions per place. [2024-10-11 14:18:43,452 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 24 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-10-11 14:18:43,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 55 transitions, 370 flow [2024-10-11 14:18:43,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:18:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:18:43,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-10-11 14:18:43,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7302631578947368 [2024-10-11 14:18:43,453 INFO L175 Difference]: Start difference. First operand has 71 places, 42 transitions, 284 flow. Second operand 4 states and 111 transitions. [2024-10-11 14:18:43,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 55 transitions, 370 flow [2024-10-11 14:18:43,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 322 flow, removed 13 selfloop flow, removed 11 redundant places. [2024-10-11 14:18:43,460 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 274 flow [2024-10-11 14:18:43,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2024-10-11 14:18:43,461 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-11 14:18:43,461 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 274 flow [2024-10-11 14:18:43,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:43,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:43,462 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] [2024-10-11 14:18:43,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 14:18:43,462 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:43,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:43,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1308510469, now seen corresponding path program 1 times [2024-10-11 14:18:43,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:43,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292622268] [2024-10-11 14:18:43,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:43,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:43,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:43,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:43,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292622268] [2024-10-11 14:18:43,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292622268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:43,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:43,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:18:43,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629964275] [2024-10-11 14:18:43,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:43,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:18:43,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:43,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:18:43,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:18:43,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-11 14:18:43,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:43,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:43,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-11 14:18:43,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:43,722 INFO L124 PetriNetUnfolderBase]: 504/1015 cut-off events. [2024-10-11 14:18:43,722 INFO L125 PetriNetUnfolderBase]: For 687/995 co-relation queries the response was YES. [2024-10-11 14:18:43,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2599 conditions, 1015 events. 504/1015 cut-off events. For 687/995 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5990 event pairs, 47 based on Foata normal form. 62/1030 useless extension candidates. Maximal degree in co-relation 2574. Up to 424 conditions per place. [2024-10-11 14:18:43,728 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 29 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2024-10-11 14:18:43,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 63 transitions, 399 flow [2024-10-11 14:18:43,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:18:43,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:18:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-10-11 14:18:43,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7315789473684211 [2024-10-11 14:18:43,730 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 274 flow. Second operand 5 states and 139 transitions. [2024-10-11 14:18:43,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 63 transitions, 399 flow [2024-10-11 14:18:43,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 63 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 14:18:43,733 INFO L231 Difference]: Finished difference. Result has 66 places, 50 transitions, 326 flow [2024-10-11 14:18:43,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=66, PETRI_TRANSITIONS=50} [2024-10-11 14:18:43,734 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 24 predicate places. [2024-10-11 14:18:43,734 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 50 transitions, 326 flow [2024-10-11 14:18:43,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:43,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:43,738 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:18:43,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 14:18:43,738 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:43,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:43,739 INFO L85 PathProgramCache]: Analyzing trace with hash 787797742, now seen corresponding path program 1 times [2024-10-11 14:18:43,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:43,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794197554] [2024-10-11 14:18:43,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:43,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:43,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:43,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:43,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794197554] [2024-10-11 14:18:43,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794197554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:43,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:43,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:18:43,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746192530] [2024-10-11 14:18:43,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:43,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:18:43,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:43,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:18:43,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:18:43,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-11 14:18:43,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 50 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:43,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:43,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-11 14:18:43,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:44,004 INFO L124 PetriNetUnfolderBase]: 412/787 cut-off events. [2024-10-11 14:18:44,005 INFO L125 PetriNetUnfolderBase]: For 1277/1725 co-relation queries the response was YES. [2024-10-11 14:18:44,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2469 conditions, 787 events. 412/787 cut-off events. For 1277/1725 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4171 event pairs, 19 based on Foata normal form. 56/800 useless extension candidates. Maximal degree in co-relation 2441. Up to 264 conditions per place. [2024-10-11 14:18:44,009 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 25 selfloop transitions, 11 changer transitions 5/65 dead transitions. [2024-10-11 14:18:44,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 65 transitions, 441 flow [2024-10-11 14:18:44,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:18:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 14:18:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2024-10-11 14:18:44,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.706140350877193 [2024-10-11 14:18:44,011 INFO L175 Difference]: Start difference. First operand has 66 places, 50 transitions, 326 flow. Second operand 6 states and 161 transitions. [2024-10-11 14:18:44,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 65 transitions, 441 flow [2024-10-11 14:18:44,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 408 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-11 14:18:44,015 INFO L231 Difference]: Finished difference. Result has 68 places, 48 transitions, 315 flow [2024-10-11 14:18:44,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=315, PETRI_PLACES=68, PETRI_TRANSITIONS=48} [2024-10-11 14:18:44,015 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-10-11 14:18:44,016 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 48 transitions, 315 flow [2024-10-11 14:18:44,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:44,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:44,016 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] [2024-10-11 14:18:44,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 14:18:44,016 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:44,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1633176865, now seen corresponding path program 1 times [2024-10-11 14:18:44,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:44,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709350995] [2024-10-11 14:18:44,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:44,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:44,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709350995] [2024-10-11 14:18:44,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709350995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:44,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:44,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:18:44,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332926904] [2024-10-11 14:18:44,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:44,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:18:44,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:44,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:18:44,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:18:44,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-11 14:18:44,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 48 transitions, 315 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:44,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:44,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-11 14:18:44,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:44,409 INFO L124 PetriNetUnfolderBase]: 638/1388 cut-off events. [2024-10-11 14:18:44,409 INFO L125 PetriNetUnfolderBase]: For 3514/3614 co-relation queries the response was YES. [2024-10-11 14:18:44,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4512 conditions, 1388 events. 638/1388 cut-off events. For 3514/3614 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 9671 event pairs, 275 based on Foata normal form. 24/1267 useless extension candidates. Maximal degree in co-relation 4485. Up to 417 conditions per place. [2024-10-11 14:18:44,418 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 21 selfloop transitions, 5 changer transitions 30/76 dead transitions. [2024-10-11 14:18:44,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 76 transitions, 547 flow [2024-10-11 14:18:44,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:18:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 14:18:44,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2024-10-11 14:18:44,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090225563909775 [2024-10-11 14:18:44,420 INFO L175 Difference]: Start difference. First operand has 68 places, 48 transitions, 315 flow. Second operand 7 states and 162 transitions. [2024-10-11 14:18:44,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 76 transitions, 547 flow [2024-10-11 14:18:44,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 76 transitions, 476 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-10-11 14:18:44,432 INFO L231 Difference]: Finished difference. Result has 69 places, 39 transitions, 202 flow [2024-10-11 14:18:44,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=202, PETRI_PLACES=69, PETRI_TRANSITIONS=39} [2024-10-11 14:18:44,432 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 27 predicate places. [2024-10-11 14:18:44,433 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 39 transitions, 202 flow [2024-10-11 14:18:44,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:44,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:18:44,433 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] [2024-10-11 14:18:44,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 14:18:44,435 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-11 14:18:44,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:18:44,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1416748521, now seen corresponding path program 2 times [2024-10-11 14:18:44,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:18:44,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262988058] [2024-10-11 14:18:44,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:18:44,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:18:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:18:44,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:18:44,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:18:44,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262988058] [2024-10-11 14:18:44,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262988058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:18:44,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:18:44,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 14:18:44,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932058907] [2024-10-11 14:18:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:18:44,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:18:44,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:18:44,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:18:44,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:18:44,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-11 14:18:44,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 39 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:44,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:18:44,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-11 14:18:44,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:18:44,736 INFO L124 PetriNetUnfolderBase]: 121/284 cut-off events. [2024-10-11 14:18:44,736 INFO L125 PetriNetUnfolderBase]: For 414/418 co-relation queries the response was YES. [2024-10-11 14:18:44,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 284 events. 121/284 cut-off events. For 414/418 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1163 event pairs, 11 based on Foata normal form. 9/275 useless extension candidates. Maximal degree in co-relation 788. Up to 103 conditions per place. [2024-10-11 14:18:44,737 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-10-11 14:18:44,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 50 transitions, 286 flow [2024-10-11 14:18:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 14:18:44,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 14:18:44,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 160 transitions. [2024-10-11 14:18:44,739 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-10-11 14:18:44,739 INFO L175 Difference]: Start difference. First operand has 69 places, 39 transitions, 202 flow. Second operand 8 states and 160 transitions. [2024-10-11 14:18:44,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 50 transitions, 286 flow [2024-10-11 14:18:44,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 215 flow, removed 7 selfloop flow, removed 18 redundant places. [2024-10-11 14:18:44,741 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-10-11 14:18:44,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-10-11 14:18:44,742 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2024-10-11 14:18:44,742 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-10-11 14:18:44,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:18:44,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-11 14:18:44,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-11 14:18:44,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-11 14:18:44,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-11 14:18:44,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 14:18:44,746 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:18:44,749 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 14:18:44,749 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 14:18:44,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:18:44 BasicIcfg [2024-10-11 14:18:44,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 14:18:44,755 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 14:18:44,755 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 14:18:44,756 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 14:18:44,757 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:18:39" (3/4) ... [2024-10-11 14:18:44,758 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 14:18:44,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 14:18:44,761 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 14:18:44,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 14:18:44,767 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-10-11 14:18:44,767 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-11 14:18:44,767 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 14:18:44,767 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 14:18:44,847 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 14:18:44,847 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 14:18:44,847 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 14:18:44,848 INFO L158 Benchmark]: Toolchain (without parser) took 6851.43ms. Allocated memory was 134.2MB in the beginning and 222.3MB in the end (delta: 88.1MB). Free memory was 78.5MB in the beginning and 179.0MB in the end (delta: -100.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:18:44,848 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 134.2MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:18:44,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.06ms. Allocated memory is still 134.2MB. Free memory was 78.2MB in the beginning and 103.5MB in the end (delta: -25.3MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2024-10-11 14:18:44,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.32ms. Allocated memory is still 134.2MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 14:18:44,849 INFO L158 Benchmark]: Boogie Preprocessor took 64.60ms. Allocated memory is still 134.2MB. Free memory was 101.3MB in the beginning and 99.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:18:44,849 INFO L158 Benchmark]: RCFGBuilder took 482.44ms. Allocated memory is still 134.2MB. Free memory was 99.2MB in the beginning and 79.7MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 14:18:44,849 INFO L158 Benchmark]: TraceAbstraction took 5616.00ms. Allocated memory was 134.2MB in the beginning and 222.3MB in the end (delta: 88.1MB). Free memory was 79.2MB in the beginning and 183.2MB in the end (delta: -104.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:18:44,849 INFO L158 Benchmark]: Witness Printer took 92.10ms. Allocated memory is still 222.3MB. Free memory was 183.2MB in the beginning and 179.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 14:18:44,851 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 134.2MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.06ms. Allocated memory is still 134.2MB. Free memory was 78.2MB in the beginning and 103.5MB in the end (delta: -25.3MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.32ms. Allocated memory is still 134.2MB. Free memory was 103.4MB in the beginning and 101.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.60ms. Allocated memory is still 134.2MB. Free memory was 101.3MB in the beginning and 99.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 482.44ms. Allocated memory is still 134.2MB. Free memory was 99.2MB in the beginning and 79.7MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5616.00ms. Allocated memory was 134.2MB in the beginning and 222.3MB in the end (delta: 88.1MB). Free memory was 79.2MB in the beginning and 183.2MB in the end (delta: -104.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 92.10ms. Allocated memory is still 222.3MB. Free memory was 183.2MB in the beginning and 179.0MB 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: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 62 locations, 4 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: 5.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 478 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 424 mSDsluCounter, 309 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 216 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 993 IncrementalHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 93 mSDtfsCounter, 993 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=8, InterpolantAutomatonStates: 80, 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, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 1155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 14:18:44,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE