./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:37:43,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:37:43,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:37:43,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:37:43,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:37:43,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:37:43,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:37:43,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:37:43,818 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:37:43,818 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:37:43,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:37:43,819 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:37:43,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:37:43,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:37:43,820 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:37:43,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:37:43,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:37:43,820 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:37:43,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:37:43,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:37:43,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:37:43,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:37:43,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:37:43,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:37:43,822 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:37:43,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:37:43,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:37:43,823 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:37:43,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:37:43,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:37:43,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:37:43,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:37:43,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:37:43,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:37:43,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:37:43,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:37:43,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:37:43,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:37:43,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:37:43,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:37:43,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:37:43,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:37:43,826 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2024-11-19 01:37:44,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:37:44,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:37:44,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:37:44,044 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:37:44,044 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:37:44,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-19 01:37:45,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:37:45,482 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:37:45,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-19 01:37:45,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456429ba4/986012654b764543866f6ff925305786/FLAG2f6dd3321 [2024-11-19 01:37:45,816 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456429ba4/986012654b764543866f6ff925305786 [2024-11-19 01:37:45,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:37:45,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:37:45,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:37:45,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:37:45,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:37:45,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:45" (1/1) ... [2024-11-19 01:37:45,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@941c8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:45, skipping insertion in model container [2024-11-19 01:37:45,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:37:45" (1/1) ... [2024-11-19 01:37:45,866 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:37:46,016 WARN L250 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/safe035_power.i[947,960] [2024-11-19 01:37:46,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:37:46,179 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:37:46,219 WARN L250 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/safe035_power.i[947,960] [2024-11-19 01:37:46,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:37:46,324 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:37:46,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46 WrapperNode [2024-11-19 01:37:46,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:37:46,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:37:46,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:37:46,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:37:46,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,373 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2024-11-19 01:37:46,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:37:46,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:37:46,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:37:46,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:37:46,387 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,391 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,411 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 01:37:46,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:37:46,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:37:46,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:37:46,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:37:46,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (1/1) ... [2024-11-19 01:37:46,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:37:46,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:37:46,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 01:37:46,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 01:37:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 01:37:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:37:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 01:37:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 01:37:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 01:37:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 01:37:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 01:37:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 01:37:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:37:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 01:37:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:37:46,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:37:46,520 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:37:46,622 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:37:46,624 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:37:46,945 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:37:46,945 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:37:47,169 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:37:47,170 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 01:37:47,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:37:47 BoogieIcfgContainer [2024-11-19 01:37:47,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:37:47,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:37:47,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:37:47,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:37:47,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:37:45" (1/3) ... [2024-11-19 01:37:47,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79302c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:37:47, skipping insertion in model container [2024-11-19 01:37:47,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:37:46" (2/3) ... [2024-11-19 01:37:47,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79302c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:37:47, skipping insertion in model container [2024-11-19 01:37:47,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:37:47" (3/3) ... [2024-11-19 01:37:47,178 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2024-11-19 01:37:47,192 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:37:47,192 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 01:37:47,192 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:37:47,247 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 01:37:47,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 96 flow [2024-11-19 01:37:47,305 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2024-11-19 01:37:47,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:37:47,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 1/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 75 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-19 01:37:47,309 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 96 flow [2024-11-19 01:37:47,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 39 transitions, 87 flow [2024-11-19 01:37:47,322 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:37:47,329 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;@2de14831, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:37:47,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 01:37:47,333 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:37:47,334 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-11-19 01:37:47,334 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:37:47,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:47,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:47,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:47,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1597382317, now seen corresponding path program 1 times [2024-11-19 01:37:47,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:47,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167916000] [2024-11-19 01:37:47,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:37:47,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:37:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:47,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:47,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167916000] [2024-11-19 01:37:47,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167916000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:47,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:47,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 01:37:47,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098548287] [2024-11-19 01:37:47,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:47,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:37:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:47,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:37:47,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:37:47,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-19 01:37:47,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:47,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:47,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-19 01:37:47,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:37:48,314 INFO L124 PetriNetUnfolderBase]: 1951/3088 cut-off events. [2024-11-19 01:37:48,314 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-19 01:37:48,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5983 conditions, 3088 events. 1951/3088 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 18876 event pairs, 266 based on Foata normal form. 120/3172 useless extension candidates. Maximal degree in co-relation 5972. Up to 2386 conditions per place. [2024-11-19 01:37:48,333 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 33 selfloop transitions, 2 changer transitions 2/50 dead transitions. [2024-11-19 01:37:48,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 183 flow [2024-11-19 01:37:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:37:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:37:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-11-19 01:37:48,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6984126984126984 [2024-11-19 01:37:48,345 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 88 transitions. [2024-11-19 01:37:48,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 183 flow [2024-11-19 01:37:48,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 01:37:48,350 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-11-19 01:37:48,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-19 01:37:48,356 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-11-19 01:37:48,356 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-11-19 01:37:48,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:48,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:48,356 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:48,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:37:48,357 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:48,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:48,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1890798407, now seen corresponding path program 1 times [2024-11-19 01:37:48,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:48,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341951061] [2024-11-19 01:37:48,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:37:48,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:37:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:48,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:48,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341951061] [2024-11-19 01:37:48,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341951061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:48,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:48,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:37:48,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400839339] [2024-11-19 01:37:48,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:48,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:37:48,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:48,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:37:48,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:37:48,648 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-19 01:37:48,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:48,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:48,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-19 01:37:48,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:37:49,336 INFO L124 PetriNetUnfolderBase]: 2423/3832 cut-off events. [2024-11-19 01:37:49,336 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-19 01:37:49,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7578 conditions, 3832 events. 2423/3832 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 24159 event pairs, 661 based on Foata normal form. 0/3748 useless extension candidates. Maximal degree in co-relation 7568. Up to 1372 conditions per place. [2024-11-19 01:37:49,348 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 32 selfloop transitions, 2 changer transitions 53/98 dead transitions. [2024-11-19 01:37:49,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 98 transitions, 384 flow [2024-11-19 01:37:49,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:37:49,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:37:49,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions. [2024-11-19 01:37:49,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2024-11-19 01:37:49,352 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 8 states and 201 transitions. [2024-11-19 01:37:49,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 98 transitions, 384 flow [2024-11-19 01:37:49,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 98 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:37:49,357 INFO L231 Difference]: Finished difference. Result has 55 places, 35 transitions, 92 flow [2024-11-19 01:37:49,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=92, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2024-11-19 01:37:49,359 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-11-19 01:37:49,359 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 92 flow [2024-11-19 01:37:49,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:49,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:49,359 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:49,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:37:49,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:49,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:49,361 INFO L85 PathProgramCache]: Analyzing trace with hash 286561760, now seen corresponding path program 1 times [2024-11-19 01:37:49,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:49,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813382509] [2024-11-19 01:37:49,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:37:49,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:37:50,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:50,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:50,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813382509] [2024-11-19 01:37:50,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813382509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:50,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:50,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:37:50,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966486201] [2024-11-19 01:37:50,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:50,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:37:50,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:50,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:37:50,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:37:50,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-19 01:37:50,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 92 flow. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 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) [2024-11-19 01:37:50,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:50,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-19 01:37:50,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:37:51,625 INFO L124 PetriNetUnfolderBase]: 3661/5794 cut-off events. [2024-11-19 01:37:51,625 INFO L125 PetriNetUnfolderBase]: For 730/730 co-relation queries the response was YES. [2024-11-19 01:37:51,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12528 conditions, 5794 events. 3661/5794 cut-off events. For 730/730 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 37061 event pairs, 543 based on Foata normal form. 135/5911 useless extension candidates. Maximal degree in co-relation 12513. Up to 2389 conditions per place. [2024-11-19 01:37:51,652 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 53 selfloop transitions, 15 changer transitions 47/125 dead transitions. [2024-11-19 01:37:51,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 125 transitions, 518 flow [2024-11-19 01:37:51,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:37:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:37:51,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 247 transitions. [2024-11-19 01:37:51,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5880952380952381 [2024-11-19 01:37:51,657 INFO L175 Difference]: Start difference. First operand has 55 places, 35 transitions, 92 flow. Second operand 10 states and 247 transitions. [2024-11-19 01:37:51,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 125 transitions, 518 flow [2024-11-19 01:37:51,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 125 transitions, 494 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-19 01:37:51,700 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 201 flow [2024-11-19 01:37:51,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=201, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-19 01:37:51,701 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-19 01:37:51,702 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 201 flow [2024-11-19 01:37:51,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 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) [2024-11-19 01:37:51,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:51,702 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:51,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:37:51,702 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:51,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:51,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1248427591, now seen corresponding path program 1 times [2024-11-19 01:37:51,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:51,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116609873] [2024-11-19 01:37:51,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:37:51,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:37:52,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:52,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:52,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116609873] [2024-11-19 01:37:52,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116609873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:52,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:52,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:37:52,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442921601] [2024-11-19 01:37:52,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:52,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:37:52,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:52,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:37:52,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:37:52,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-19 01:37:52,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 201 flow. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:52,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:52,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-19 01:37:52,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:37:53,948 INFO L124 PetriNetUnfolderBase]: 4136/6596 cut-off events. [2024-11-19 01:37:53,949 INFO L125 PetriNetUnfolderBase]: For 6750/6770 co-relation queries the response was YES. [2024-11-19 01:37:53,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19896 conditions, 6596 events. 4136/6596 cut-off events. For 6750/6770 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 43690 event pairs, 442 based on Foata normal form. 65/6643 useless extension candidates. Maximal degree in co-relation 19878. Up to 2790 conditions per place. [2024-11-19 01:37:53,986 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 73 selfloop transitions, 20 changer transitions 38/141 dead transitions. [2024-11-19 01:37:53,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 141 transitions, 881 flow [2024-11-19 01:37:53,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:37:53,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 01:37:53,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 275 transitions. [2024-11-19 01:37:53,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5456349206349206 [2024-11-19 01:37:53,988 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 201 flow. Second operand 12 states and 275 transitions. [2024-11-19 01:37:53,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 141 transitions, 881 flow [2024-11-19 01:37:54,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 141 transitions, 858 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 01:37:54,007 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 383 flow [2024-11-19 01:37:54,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=383, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-19 01:37:54,007 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-19 01:37:54,008 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 383 flow [2024-11-19 01:37:54,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:54,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:54,008 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:54,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:37:54,008 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:54,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:54,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1719423301, now seen corresponding path program 2 times [2024-11-19 01:37:54,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:54,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113135877] [2024-11-19 01:37:54,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:37:54,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:54,114 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:37:54,118 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:37:54,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:54,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:54,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113135877] [2024-11-19 01:37:54,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113135877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:54,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:54,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:37:54,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442222445] [2024-11-19 01:37:54,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:54,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:37:54,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:54,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:37:54,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:37:54,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-19 01:37:54,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 383 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:54,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:54,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-19 01:37:54,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:37:55,260 INFO L124 PetriNetUnfolderBase]: 5898/9037 cut-off events. [2024-11-19 01:37:55,261 INFO L125 PetriNetUnfolderBase]: For 35249/35379 co-relation queries the response was YES. [2024-11-19 01:37:55,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35217 conditions, 9037 events. 5898/9037 cut-off events. For 35249/35379 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 55967 event pairs, 832 based on Foata normal form. 565/9555 useless extension candidates. Maximal degree in co-relation 35193. Up to 4184 conditions per place. [2024-11-19 01:37:55,307 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 99 selfloop transitions, 5 changer transitions 6/123 dead transitions. [2024-11-19 01:37:55,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 123 transitions, 1017 flow [2024-11-19 01:37:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:37:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 01:37:55,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-19 01:37:55,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-11-19 01:37:55,310 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 383 flow. Second operand 4 states and 110 transitions. [2024-11-19 01:37:55,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 123 transitions, 1017 flow [2024-11-19 01:37:55,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 123 transitions, 981 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-19 01:37:55,340 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 401 flow [2024-11-19 01:37:55,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=401, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-19 01:37:55,341 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-19 01:37:55,341 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 401 flow [2024-11-19 01:37:55,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:55,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:55,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:55,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:37:55,342 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:55,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:55,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1533968904, now seen corresponding path program 1 times [2024-11-19 01:37:55,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:55,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042986064] [2024-11-19 01:37:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:37:55,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:37:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:55,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:55,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042986064] [2024-11-19 01:37:55,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042986064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:55,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:55,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:37:55,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695350908] [2024-11-19 01:37:55,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:55,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:37:55,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:55,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:37:55,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:37:55,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-19 01:37:55,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 401 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:55,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:55,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-19 01:37:55,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:37:56,263 INFO L124 PetriNetUnfolderBase]: 4475/6982 cut-off events. [2024-11-19 01:37:56,263 INFO L125 PetriNetUnfolderBase]: For 26026/26142 co-relation queries the response was YES. [2024-11-19 01:37:56,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28149 conditions, 6982 events. 4475/6982 cut-off events. For 26026/26142 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 42094 event pairs, 736 based on Foata normal form. 404/7339 useless extension candidates. Maximal degree in co-relation 28125. Up to 2574 conditions per place. [2024-11-19 01:37:56,293 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 99 selfloop transitions, 8 changer transitions 12/132 dead transitions. [2024-11-19 01:37:56,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 132 transitions, 1092 flow [2024-11-19 01:37:56,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:37:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 01:37:56,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-11-19 01:37:56,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2024-11-19 01:37:56,295 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 401 flow. Second operand 5 states and 141 transitions. [2024-11-19 01:37:56,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 132 transitions, 1092 flow [2024-11-19 01:37:56,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 132 transitions, 1089 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 01:37:56,372 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 439 flow [2024-11-19 01:37:56,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=439, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-11-19 01:37:56,375 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-19 01:37:56,375 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 439 flow [2024-11-19 01:37:56,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:56,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:56,375 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:56,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:37:56,376 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:56,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:56,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1491675154, now seen corresponding path program 1 times [2024-11-19 01:37:56,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:56,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617914585] [2024-11-19 01:37:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:37:56,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:37:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:57,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:57,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617914585] [2024-11-19 01:37:57,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617914585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:57,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:57,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:37:57,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509207364] [2024-11-19 01:37:57,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:57,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:37:57,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:57,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:37:57,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:37:57,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-19 01:37:57,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 439 flow. Second operand has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:57,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:57,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-19 01:37:57,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:37:58,820 INFO L124 PetriNetUnfolderBase]: 3424/6083 cut-off events. [2024-11-19 01:37:58,820 INFO L125 PetriNetUnfolderBase]: For 20206/21314 co-relation queries the response was YES. [2024-11-19 01:37:58,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24252 conditions, 6083 events. 3424/6083 cut-off events. For 20206/21314 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 43917 event pairs, 583 based on Foata normal form. 185/5890 useless extension candidates. Maximal degree in co-relation 24225. Up to 1940 conditions per place. [2024-11-19 01:37:58,851 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 52 selfloop transitions, 13 changer transitions 70/153 dead transitions. [2024-11-19 01:37:58,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 153 transitions, 1353 flow [2024-11-19 01:37:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:37:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 01:37:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 285 transitions. [2024-11-19 01:37:58,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.521978021978022 [2024-11-19 01:37:58,856 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 439 flow. Second operand 13 states and 285 transitions. [2024-11-19 01:37:58,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 153 transitions, 1353 flow [2024-11-19 01:37:58,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 153 transitions, 1329 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-19 01:37:58,879 INFO L231 Difference]: Finished difference. Result has 88 places, 62 transitions, 475 flow [2024-11-19 01:37:58,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=475, PETRI_PLACES=88, PETRI_TRANSITIONS=62} [2024-11-19 01:37:58,879 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 40 predicate places. [2024-11-19 01:37:58,879 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 62 transitions, 475 flow [2024-11-19 01:37:58,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:58,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:58,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:58,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:37:58,880 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:58,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:58,881 INFO L85 PathProgramCache]: Analyzing trace with hash 70659006, now seen corresponding path program 2 times [2024-11-19 01:37:58,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:58,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193336221] [2024-11-19 01:37:58,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:37:58,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:58,957 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:37:58,957 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:37:59,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:59,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:59,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193336221] [2024-11-19 01:37:59,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193336221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:59,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:59,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:37:59,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84126725] [2024-11-19 01:37:59,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:59,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:37:59,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:59,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:37:59,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:37:59,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-19 01:37:59,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 62 transitions, 475 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:59,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:59,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-19 01:37:59,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:37:59,497 INFO L124 PetriNetUnfolderBase]: 1487/2411 cut-off events. [2024-11-19 01:37:59,497 INFO L125 PetriNetUnfolderBase]: For 16111/16205 co-relation queries the response was YES. [2024-11-19 01:37:59,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11330 conditions, 2411 events. 1487/2411 cut-off events. For 16111/16205 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 12529 event pairs, 252 based on Foata normal form. 107/2501 useless extension candidates. Maximal degree in co-relation 11295. Up to 967 conditions per place. [2024-11-19 01:37:59,509 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 77 selfloop transitions, 11 changer transitions 0/99 dead transitions. [2024-11-19 01:37:59,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 99 transitions, 941 flow [2024-11-19 01:37:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:37:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 01:37:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-11-19 01:37:59,511 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5515873015873016 [2024-11-19 01:37:59,511 INFO L175 Difference]: Start difference. First operand has 88 places, 62 transitions, 475 flow. Second operand 6 states and 139 transitions. [2024-11-19 01:37:59,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 99 transitions, 941 flow [2024-11-19 01:37:59,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 99 transitions, 756 flow, removed 55 selfloop flow, removed 18 redundant places. [2024-11-19 01:37:59,526 INFO L231 Difference]: Finished difference. Result has 70 places, 62 transitions, 387 flow [2024-11-19 01:37:59,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=70, PETRI_TRANSITIONS=62} [2024-11-19 01:37:59,526 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-19 01:37:59,529 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 62 transitions, 387 flow [2024-11-19 01:37:59,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:59,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:37:59,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:37:59,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:37:59,530 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:37:59,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:37:59,530 INFO L85 PathProgramCache]: Analyzing trace with hash 619321625, now seen corresponding path program 1 times [2024-11-19 01:37:59,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:37:59,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751263539] [2024-11-19 01:37:59,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:37:59,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:37:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:37:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:37:59,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:37:59,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751263539] [2024-11-19 01:37:59,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751263539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:37:59,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:37:59,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:37:59,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601450489] [2024-11-19 01:37:59,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:37:59,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:37:59,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:37:59,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:37:59,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:37:59,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2024-11-19 01:37:59,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 62 transitions, 387 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:37:59,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:37:59,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2024-11-19 01:37:59,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:38:00,198 INFO L124 PetriNetUnfolderBase]: 1254/2284 cut-off events. [2024-11-19 01:38:00,198 INFO L125 PetriNetUnfolderBase]: For 7507/8077 co-relation queries the response was YES. [2024-11-19 01:38:00,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8435 conditions, 2284 events. 1254/2284 cut-off events. For 7507/8077 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 14344 event pairs, 173 based on Foata normal form. 90/2157 useless extension candidates. Maximal degree in co-relation 8411. Up to 1187 conditions per place. [2024-11-19 01:38:00,206 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 33 selfloop transitions, 1 changer transitions 43/96 dead transitions. [2024-11-19 01:38:00,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 710 flow [2024-11-19 01:38:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:38:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 01:38:00,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-19 01:38:00,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2024-11-19 01:38:00,207 INFO L175 Difference]: Start difference. First operand has 70 places, 62 transitions, 387 flow. Second operand 6 states and 130 transitions. [2024-11-19 01:38:00,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 710 flow [2024-11-19 01:38:00,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 96 transitions, 650 flow, removed 24 selfloop flow, removed 5 redundant places. [2024-11-19 01:38:00,216 INFO L231 Difference]: Finished difference. Result has 74 places, 48 transitions, 265 flow [2024-11-19 01:38:00,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=74, PETRI_TRANSITIONS=48} [2024-11-19 01:38:00,217 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-19 01:38:00,217 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 265 flow [2024-11-19 01:38:00,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:38:00,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:38:00,217 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:38:00,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:38:00,218 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:38:00,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:38:00,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1922864293, now seen corresponding path program 2 times [2024-11-19 01:38:00,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:38:00,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095760501] [2024-11-19 01:38:00,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:38:00,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:38:00,292 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:38:00,292 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:38:02,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:38:02,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:38:02,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095760501] [2024-11-19 01:38:02,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095760501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:38:02,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:38:02,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:38:02,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488289122] [2024-11-19 01:38:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:38:02,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:38:02,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:38:02,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:38:02,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:38:02,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-19 01:38:02,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 48 transitions, 265 flow. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:38:02,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:38:02,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-19 01:38:02,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:38:02,578 INFO L124 PetriNetUnfolderBase]: 1011/1925 cut-off events. [2024-11-19 01:38:02,578 INFO L125 PetriNetUnfolderBase]: For 3315/3570 co-relation queries the response was YES. [2024-11-19 01:38:02,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6348 conditions, 1925 events. 1011/1925 cut-off events. For 3315/3570 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 12365 event pairs, 289 based on Foata normal form. 52/1780 useless extension candidates. Maximal degree in co-relation 6323. Up to 937 conditions per place. [2024-11-19 01:38:02,587 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 30 selfloop transitions, 5 changer transitions 29/83 dead transitions. [2024-11-19 01:38:02,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 83 transitions, 570 flow [2024-11-19 01:38:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:38:02,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:38:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-11-19 01:38:02,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-11-19 01:38:02,588 INFO L175 Difference]: Start difference. First operand has 74 places, 48 transitions, 265 flow. Second operand 8 states and 161 transitions. [2024-11-19 01:38:02,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 83 transitions, 570 flow [2024-11-19 01:38:02,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 83 transitions, 543 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-19 01:38:02,596 INFO L231 Difference]: Finished difference. Result has 74 places, 50 transitions, 301 flow [2024-11-19 01:38:02,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=301, PETRI_PLACES=74, PETRI_TRANSITIONS=50} [2024-11-19 01:38:02,599 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2024-11-19 01:38:02,599 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 50 transitions, 301 flow [2024-11-19 01:38:02,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 9 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:38:02,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:38:02,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:38:02,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:38:02,602 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 01:38:02,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:38:02,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1686839965, now seen corresponding path program 3 times [2024-11-19 01:38:02,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:38:02,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078587674] [2024-11-19 01:38:02,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:38:02,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:38:02,672 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:38:02,672 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:38:04,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:38:04,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:38:04,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078587674] [2024-11-19 01:38:04,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078587674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:38:04,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:38:04,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:38:04,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470312833] [2024-11-19 01:38:04,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:38:04,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:38:04,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:38:04,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:38:04,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:38:04,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 42 [2024-11-19 01:38:04,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 50 transitions, 301 flow. Second operand has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:38:04,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:38:04,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 42 [2024-11-19 01:38:04,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:38:04,996 INFO L124 PetriNetUnfolderBase]: 457/981 cut-off events. [2024-11-19 01:38:04,996 INFO L125 PetriNetUnfolderBase]: For 2309/2436 co-relation queries the response was YES. [2024-11-19 01:38:04,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 981 events. 457/981 cut-off events. For 2309/2436 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5820 event pairs, 142 based on Foata normal form. 27/934 useless extension candidates. Maximal degree in co-relation 3425. Up to 366 conditions per place. [2024-11-19 01:38:05,000 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-11-19 01:38:05,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 67 transitions, 468 flow [2024-11-19 01:38:05,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:38:05,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 01:38:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 163 transitions. [2024-11-19 01:38:05,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4312169312169312 [2024-11-19 01:38:05,001 INFO L175 Difference]: Start difference. First operand has 74 places, 50 transitions, 301 flow. Second operand 9 states and 163 transitions. [2024-11-19 01:38:05,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 67 transitions, 468 flow [2024-11-19 01:38:05,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 455 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-19 01:38:05,009 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2024-11-19 01:38:05,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2024-11-19 01:38:05,010 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2024-11-19 01:38:05,010 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2024-11-19 01:38:05,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:38:05,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-19 01:38:05,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-19 01:38:05,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-19 01:38:05,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-19 01:38:05,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-19 01:38:05,013 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-19 01:38:05,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:38:05,014 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1] [2024-11-19 01:38:05,018 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 01:38:05,018 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 01:38:05,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:38:05 BasicIcfg [2024-11-19 01:38:05,021 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 01:38:05,022 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 01:38:05,022 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 01:38:05,022 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 01:38:05,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:37:47" (3/4) ... [2024-11-19 01:38:05,023 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 01:38:05,025 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-19 01:38:05,025 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-19 01:38:05,025 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-19 01:38:05,029 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 88 nodes and edges [2024-11-19 01:38:05,029 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-19 01:38:05,030 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 01:38:05,030 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 01:38:05,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 01:38:05,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 01:38:05,096 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 01:38:05,096 INFO L158 Benchmark]: Toolchain (without parser) took 19276.66ms. Allocated memory was 163.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 94.3MB in the beginning and 932.3MB in the end (delta: -838.0MB). Peak memory consumption was 510.1MB. Max. memory is 16.1GB. [2024-11-19 01:38:05,096 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:38:05,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.31ms. Allocated memory is still 163.6MB. Free memory was 94.2MB in the beginning and 123.0MB in the end (delta: -28.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-19 01:38:05,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.61ms. Allocated memory is still 163.6MB. Free memory was 123.0MB in the beginning and 119.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 01:38:05,097 INFO L158 Benchmark]: Boogie Preprocessor took 69.37ms. Allocated memory is still 163.6MB. Free memory was 119.5MB in the beginning and 113.4MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 01:38:05,097 INFO L158 Benchmark]: RCFGBuilder took 727.06ms. Allocated memory is still 163.6MB. Free memory was 113.4MB in the beginning and 109.3MB in the end (delta: 4.1MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2024-11-19 01:38:05,098 INFO L158 Benchmark]: TraceAbstraction took 17849.28ms. Allocated memory was 163.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 108.1MB in the beginning and 937.6MB in the end (delta: -829.5MB). Peak memory consumption was 516.8MB. Max. memory is 16.1GB. [2024-11-19 01:38:05,098 INFO L158 Benchmark]: Witness Printer took 73.88ms. Allocated memory is still 1.5GB. Free memory was 937.6MB in the beginning and 932.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 01:38:05,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.31ms. Allocated memory is still 163.6MB. Free memory was 94.2MB in the beginning and 123.0MB in the end (delta: -28.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.61ms. Allocated memory is still 163.6MB. Free memory was 123.0MB in the beginning and 119.5MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.37ms. Allocated memory is still 163.6MB. Free memory was 119.5MB in the beginning and 113.4MB in the end (delta: 6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 727.06ms. Allocated memory is still 163.6MB. Free memory was 113.4MB in the beginning and 109.3MB in the end (delta: 4.1MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * TraceAbstraction took 17849.28ms. Allocated memory was 163.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 108.1MB in the beginning and 937.6MB in the end (delta: -829.5MB). Peak memory consumption was 516.8MB. Max. memory is 16.1GB. * Witness Printer took 73.88ms. Allocated memory is still 1.5GB. Free memory was 937.6MB in the beginning and 932.3MB in the end (delta: 5.2MB). 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 - 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, 70 locations, 6 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: 17.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 693 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 676 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 157 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2424 IncrementalHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 157 mSolverCounterUnsat, 35 mSDtfsCounter, 2424 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=475occurred in iteration=7, InterpolantAutomatonStates: 84, 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, 0.6s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 1801 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 01:38:05,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE