./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test-easy10.wvr.c --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/weaver/test-easy10.wvr.c -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 24421fae56d27ddfd314bb85e4431c40a1e6738a845aa97472d8668d2b4dde52 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:55:19,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:55:19,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:55:19,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:55:19,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:55:19,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:55:19,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:55:19,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:55:19,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:55:19,753 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:55:19,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:55:19,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:55:19,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:55:19,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:55:19,755 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:55:19,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:55:19,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:55:19,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:55:19,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:55:19,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:55:19,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:55:19,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:55:19,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:55:19,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:55:19,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:55:19,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:55:19,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:55:19,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:55:19,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:55:19,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:55:19,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:55:19,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:55:19,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:55:19,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:55:19,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:55:19,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:55:19,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:55:19,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:55:19,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:55:19,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:55:19,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:55:19,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:55:19,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24421fae56d27ddfd314bb85e4431c40a1e6738a845aa97472d8668d2b4dde52 [2024-11-19 01:55:20,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:55:20,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:55:20,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:55:20,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:55:20,043 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:55:20,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-11-19 01:55:21,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:55:21,705 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:55:21,705 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-11-19 01:55:21,716 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316f2815c/18730c6968a74cd4a65d5ad57fd21fb1/FLAGb83f8cc16 [2024-11-19 01:55:21,732 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316f2815c/18730c6968a74cd4a65d5ad57fd21fb1 [2024-11-19 01:55:21,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:55:21,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:55:21,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:55:21,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:55:21,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:55:21,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:55:21" (1/1) ... [2024-11-19 01:55:21,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539817df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:21, skipping insertion in model container [2024-11-19 01:55:21,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:55:21" (1/1) ... [2024-11-19 01:55:21,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:55:21,954 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/weaver/test-easy10.wvr.c[2547,2560] [2024-11-19 01:55:21,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:55:21,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:55:21,991 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/weaver/test-easy10.wvr.c[2547,2560] [2024-11-19 01:55:21,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:55:22,006 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:55:22,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22 WrapperNode [2024-11-19 01:55:22,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:55:22,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:55:22,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:55:22,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:55:22,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,043 INFO L138 Inliner]: procedures = 20, calls = 16, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2024-11-19 01:55:22,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:55:22,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:55:22,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:55:22,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:55:22,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,059 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,078 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 01:55:22,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,085 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:55:22,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:55:22,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:55:22,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:55:22,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (1/1) ... [2024-11-19 01:55:22,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:55:22,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:55:22,146 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 01:55:22,150 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 01:55:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:55:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 01:55:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 01:55:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 01:55:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 01:55:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 01:55:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 01:55:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 01:55:22,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 01:55:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:55:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:55:22,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:55:22,214 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 01:55:22,309 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:55:22,311 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:55:22,596 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:55:22,596 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:55:22,742 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:55:22,742 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 01:55:22,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:55:22 BoogieIcfgContainer [2024-11-19 01:55:22,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:55:22,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:55:22,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:55:22,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:55:22,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:55:21" (1/3) ... [2024-11-19 01:55:22,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449861ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:55:22, skipping insertion in model container [2024-11-19 01:55:22,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:22" (2/3) ... [2024-11-19 01:55:22,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449861ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:55:22, skipping insertion in model container [2024-11-19 01:55:22,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:55:22" (3/3) ... [2024-11-19 01:55:22,752 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2024-11-19 01:55:22,764 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:55:22,765 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:55:22,765 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:55:22,819 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 01:55:22,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 60 transitions, 148 flow [2024-11-19 01:55:22,911 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2024-11-19 01:55:22,914 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 01:55:22,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 56 events. 0/56 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-19 01:55:22,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 60 transitions, 148 flow [2024-11-19 01:55:22,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 55 transitions, 134 flow [2024-11-19 01:55:22,933 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:55:22,941 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;@7e626588, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:55:22,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-19 01:55:22,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:55:22,961 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2024-11-19 01:55:22,962 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 01:55:22,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:22,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:22,964 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:55:22,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1956989108, now seen corresponding path program 1 times [2024-11-19 01:55:22,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:22,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198254967] [2024-11-19 01:55:22,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:55:22,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:55:23,529 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 01:55:23,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:23,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198254967] [2024-11-19 01:55:23,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198254967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:23,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:23,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:55:23,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159793909] [2024-11-19 01:55:23,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:23,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:55:23,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:23,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:55:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:55:23,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 60 [2024-11-19 01:55:23,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:23,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:23,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 60 [2024-11-19 01:55:23,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:23,881 INFO L124 PetriNetUnfolderBase]: 597/1149 cut-off events. [2024-11-19 01:55:23,881 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-19 01:55:23,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2184 conditions, 1149 events. 597/1149 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7045 event pairs, 142 based on Foata normal form. 25/1126 useless extension candidates. Maximal degree in co-relation 2084. Up to 853 conditions per place. [2024-11-19 01:55:23,904 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 34 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-11-19 01:55:23,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 64 transitions, 230 flow [2024-11-19 01:55:23,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:55:23,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:55:23,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-11-19 01:55:23,917 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7388888888888889 [2024-11-19 01:55:23,920 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 134 flow. Second operand 3 states and 133 transitions. [2024-11-19 01:55:23,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 64 transitions, 230 flow [2024-11-19 01:55:23,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 210 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-19 01:55:23,935 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 126 flow [2024-11-19 01:55:23,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2024-11-19 01:55:23,942 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -5 predicate places. [2024-11-19 01:55:23,942 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 126 flow [2024-11-19 01:55:23,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:23,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:23,943 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:23,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:55:23,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:55:23,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:23,945 INFO L85 PathProgramCache]: Analyzing trace with hash -211321158, now seen corresponding path program 2 times [2024-11-19 01:55:23,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:23,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818111838] [2024-11-19 01:55:23,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:55:23,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:23,979 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:55:23,983 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:24,183 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 01:55:24,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:24,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818111838] [2024-11-19 01:55:24,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818111838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:24,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:24,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:55:24,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241912808] [2024-11-19 01:55:24,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:24,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:55:24,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:24,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:55:24,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:55:24,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 60 [2024-11-19 01:55:24,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:24,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:24,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 60 [2024-11-19 01:55:24,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:24,391 INFO L124 PetriNetUnfolderBase]: 507/1023 cut-off events. [2024-11-19 01:55:24,391 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-19 01:55:24,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1023 events. 507/1023 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5972 event pairs, 156 based on Foata normal form. 25/1007 useless extension candidates. Maximal degree in co-relation 1864. Up to 645 conditions per place. [2024-11-19 01:55:24,399 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 32 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-11-19 01:55:24,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 212 flow [2024-11-19 01:55:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:55:24,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:55:24,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2024-11-19 01:55:24,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7277777777777777 [2024-11-19 01:55:24,402 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 126 flow. Second operand 3 states and 131 transitions. [2024-11-19 01:55:24,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 212 flow [2024-11-19 01:55:24,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 62 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:55:24,405 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 130 flow [2024-11-19 01:55:24,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-11-19 01:55:24,406 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -4 predicate places. [2024-11-19 01:55:24,407 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 130 flow [2024-11-19 01:55:24,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:24,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:24,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:24,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:55:24,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:55:24,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash -214292212, now seen corresponding path program 3 times [2024-11-19 01:55:24,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:24,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284740609] [2024-11-19 01:55:24,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:55:24,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:24,446 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:55:24,446 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:24,578 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 01:55:24,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:24,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284740609] [2024-11-19 01:55:24,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284740609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:24,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:24,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:55:24,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112034125] [2024-11-19 01:55:24,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:24,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:55:24,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:24,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:55:24,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:55:24,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 60 [2024-11-19 01:55:24,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:24,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:24,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 60 [2024-11-19 01:55:24,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:24,759 INFO L124 PetriNetUnfolderBase]: 507/985 cut-off events. [2024-11-19 01:55:24,760 INFO L125 PetriNetUnfolderBase]: For 117/121 co-relation queries the response was YES. [2024-11-19 01:55:24,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 985 events. 507/985 cut-off events. For 117/121 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5680 event pairs, 122 based on Foata normal form. 20/977 useless extension candidates. Maximal degree in co-relation 1641. Up to 733 conditions per place. [2024-11-19 01:55:24,768 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 36 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-11-19 01:55:24,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 233 flow [2024-11-19 01:55:24,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:55:24,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:55:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-11-19 01:55:24,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-19 01:55:24,770 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 130 flow. Second operand 3 states and 135 transitions. [2024-11-19 01:55:24,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 233 flow [2024-11-19 01:55:24,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 66 transitions, 229 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:55:24,775 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 134 flow [2024-11-19 01:55:24,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-19 01:55:24,776 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -3 predicate places. [2024-11-19 01:55:24,778 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 134 flow [2024-11-19 01:55:24,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:24,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:24,778 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:24,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:55:24,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:55:24,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:24,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2104338960, now seen corresponding path program 4 times [2024-11-19 01:55:24,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:24,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887329497] [2024-11-19 01:55:24,781 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:55:24,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:24,810 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:55:24,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:24,942 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 01:55:24,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:24,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887329497] [2024-11-19 01:55:24,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887329497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:24,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:24,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:55:24,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252160340] [2024-11-19 01:55:24,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:24,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:55:24,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:24,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:55:24,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:55:24,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 60 [2024-11-19 01:55:24,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:24,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:24,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 60 [2024-11-19 01:55:24,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:25,084 INFO L124 PetriNetUnfolderBase]: 549/1083 cut-off events. [2024-11-19 01:55:25,084 INFO L125 PetriNetUnfolderBase]: For 251/269 co-relation queries the response was YES. [2024-11-19 01:55:25,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 1083 events. 549/1083 cut-off events. For 251/269 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6281 event pairs, 156 based on Foata normal form. 14/1046 useless extension candidates. Maximal degree in co-relation 2164. Up to 705 conditions per place. [2024-11-19 01:55:25,092 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 34 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-11-19 01:55:25,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 64 transitions, 231 flow [2024-11-19 01:55:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:55:25,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:55:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 133 transitions. [2024-11-19 01:55:25,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7388888888888889 [2024-11-19 01:55:25,094 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 134 flow. Second operand 3 states and 133 transitions. [2024-11-19 01:55:25,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 64 transitions, 231 flow [2024-11-19 01:55:25,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 227 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:55:25,096 INFO L231 Difference]: Finished difference. Result has 66 places, 55 transitions, 138 flow [2024-11-19 01:55:25,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2024-11-19 01:55:25,097 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -2 predicate places. [2024-11-19 01:55:25,098 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 138 flow [2024-11-19 01:55:25,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:25,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:25,098 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:25,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:55:25,099 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:55:25,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1404001800, now seen corresponding path program 5 times [2024-11-19 01:55:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:25,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022347018] [2024-11-19 01:55:25,100 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 01:55:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:25,260 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:55:25,261 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:27,258 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 01:55:27,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:27,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022347018] [2024-11-19 01:55:27,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022347018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:27,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:27,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:55:27,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850522134] [2024-11-19 01:55:27,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:27,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:55:27,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:27,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:55:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:55:27,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-19 01:55:27,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 138 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 01:55:27,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:27,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-19 01:55:27,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:31,122 INFO L124 PetriNetUnfolderBase]: 15512/22322 cut-off events. [2024-11-19 01:55:31,126 INFO L125 PetriNetUnfolderBase]: For 3889/3889 co-relation queries the response was YES. [2024-11-19 01:55:31,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48416 conditions, 22322 events. 15512/22322 cut-off events. For 3889/3889 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 131223 event pairs, 2112 based on Foata normal form. 1/22315 useless extension candidates. Maximal degree in co-relation 20942. Up to 6001 conditions per place. [2024-11-19 01:55:31,271 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 214 selfloop transitions, 15 changer transitions 18/256 dead transitions. [2024-11-19 01:55:31,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 256 transitions, 1119 flow [2024-11-19 01:55:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:55:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 01:55:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 443 transitions. [2024-11-19 01:55:31,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4922222222222222 [2024-11-19 01:55:31,274 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 138 flow. Second operand 15 states and 443 transitions. [2024-11-19 01:55:31,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 256 transitions, 1119 flow [2024-11-19 01:55:31,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 256 transitions, 1115 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:55:31,281 INFO L231 Difference]: Finished difference. Result has 89 places, 66 transitions, 235 flow [2024-11-19 01:55:31,281 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=235, PETRI_PLACES=89, PETRI_TRANSITIONS=66} [2024-11-19 01:55:31,282 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 21 predicate places. [2024-11-19 01:55:31,283 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 66 transitions, 235 flow [2024-11-19 01:55:31,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 01:55:31,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:31,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:31,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:55:31,286 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:55:31,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:31,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1577836536, now seen corresponding path program 6 times [2024-11-19 01:55:31,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:31,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597672725] [2024-11-19 01:55:31,287 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 01:55:31,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:31,355 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 01:55:31,355 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:32,904 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 01:55:32,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597672725] [2024-11-19 01:55:32,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597672725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:32,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:32,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:55:32,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23326603] [2024-11-19 01:55:32,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:32,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:55:32,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:32,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:55:32,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:55:33,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-19 01:55:33,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 66 transitions, 235 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 01:55:33,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:33,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-19 01:55:33,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:39,357 INFO L124 PetriNetUnfolderBase]: 44972/65046 cut-off events. [2024-11-19 01:55:39,357 INFO L125 PetriNetUnfolderBase]: For 46767/46767 co-relation queries the response was YES. [2024-11-19 01:55:39,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174370 conditions, 65046 events. 44972/65046 cut-off events. For 46767/46767 co-relation queries the response was YES. Maximal size of possible extension queue 1922. Compared 446513 event pairs, 7165 based on Foata normal form. 1/65040 useless extension candidates. Maximal degree in co-relation 174188. Up to 16978 conditions per place. [2024-11-19 01:55:40,078 INFO L140 encePairwiseOnDemand]: 43/60 looper letters, 264 selfloop transitions, 27 changer transitions 10/310 dead transitions. [2024-11-19 01:55:40,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 310 transitions, 1737 flow [2024-11-19 01:55:40,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:55:40,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 01:55:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 448 transitions. [2024-11-19 01:55:40,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49777777777777776 [2024-11-19 01:55:40,081 INFO L175 Difference]: Start difference. First operand has 89 places, 66 transitions, 235 flow. Second operand 15 states and 448 transitions. [2024-11-19 01:55:40,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 310 transitions, 1737 flow [2024-11-19 01:55:40,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 310 transitions, 1695 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-11-19 01:55:40,684 INFO L231 Difference]: Finished difference. Result has 109 places, 86 transitions, 469 flow [2024-11-19 01:55:40,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=469, PETRI_PLACES=109, PETRI_TRANSITIONS=86} [2024-11-19 01:55:40,685 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 41 predicate places. [2024-11-19 01:55:40,685 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 86 transitions, 469 flow [2024-11-19 01:55:40,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 01:55:40,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:40,685 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:40,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:55:40,686 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:55:40,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:40,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1144622834, now seen corresponding path program 7 times [2024-11-19 01:55:40,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:40,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542641536] [2024-11-19 01:55:40,687 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 01:55:40,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:55:42,186 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 01:55:42,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:42,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542641536] [2024-11-19 01:55:42,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542641536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:42,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:42,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:55:42,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185510621] [2024-11-19 01:55:42,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:42,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:55:42,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:42,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:55:42,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:55:42,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-19 01:55:42,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 86 transitions, 469 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 01:55:42,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:42,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-19 01:55:42,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:53,207 INFO L124 PetriNetUnfolderBase]: 82077/119021 cut-off events. [2024-11-19 01:55:53,208 INFO L125 PetriNetUnfolderBase]: For 206087/206087 co-relation queries the response was YES. [2024-11-19 01:55:53,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369923 conditions, 119021 events. 82077/119021 cut-off events. For 206087/206087 co-relation queries the response was YES. Maximal size of possible extension queue 3719. Compared 890610 event pairs, 15472 based on Foata normal form. 1/119016 useless extension candidates. Maximal degree in co-relation 369503. Up to 31426 conditions per place. [2024-11-19 01:55:54,526 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 303 selfloop transitions, 41 changer transitions 10/363 dead transitions. [2024-11-19 01:55:54,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 363 transitions, 2556 flow [2024-11-19 01:55:54,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:55:54,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 01:55:54,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 454 transitions. [2024-11-19 01:55:54,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5044444444444445 [2024-11-19 01:55:54,529 INFO L175 Difference]: Start difference. First operand has 109 places, 86 transitions, 469 flow. Second operand 15 states and 454 transitions. [2024-11-19 01:55:54,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 363 transitions, 2556 flow [2024-11-19 01:55:58,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 363 transitions, 2498 flow, removed 23 selfloop flow, removed 3 redundant places. [2024-11-19 01:55:58,104 INFO L231 Difference]: Finished difference. Result has 131 places, 119 transitions, 940 flow [2024-11-19 01:55:58,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=940, PETRI_PLACES=131, PETRI_TRANSITIONS=119} [2024-11-19 01:55:58,105 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 63 predicate places. [2024-11-19 01:55:58,105 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 119 transitions, 940 flow [2024-11-19 01:55:58,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 01:55:58,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:58,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:55:58,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:55:58,107 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:55:58,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:58,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1333237722, now seen corresponding path program 8 times [2024-11-19 01:55:58,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:58,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488473537] [2024-11-19 01:55:58,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:55:58,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:58,151 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:55:58,152 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:59,380 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 01:55:59,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:59,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488473537] [2024-11-19 01:55:59,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488473537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:55:59,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:55:59,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:55:59,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746368260] [2024-11-19 01:55:59,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:55:59,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:55:59,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:59,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:55:59,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:55:59,457 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 60 [2024-11-19 01:55:59,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 119 transitions, 940 flow. Second operand has 14 states, 14 states have (on average 16.285714285714285) internal successors, (228), 14 states have internal predecessors, (228), 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 01:55:59,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:59,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 60 [2024-11-19 01:55:59,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:56:16,456 INFO L124 PetriNetUnfolderBase]: 116797/170000 cut-off events. [2024-11-19 01:56:16,456 INFO L125 PetriNetUnfolderBase]: For 517668/517668 co-relation queries the response was YES. [2024-11-19 01:56:17,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588256 conditions, 170000 events. 116797/170000 cut-off events. For 517668/517668 co-relation queries the response was YES. Maximal size of possible extension queue 5544. Compared 1338195 event pairs, 25311 based on Foata normal form. 1/169998 useless extension candidates. Maximal degree in co-relation 587553. Up to 44524 conditions per place. [2024-11-19 01:56:18,286 INFO L140 encePairwiseOnDemand]: 44/60 looper letters, 304 selfloop transitions, 73 changer transitions 12/398 dead transitions. [2024-11-19 01:56:18,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 398 transitions, 3395 flow [2024-11-19 01:56:18,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:56:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 01:56:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 449 transitions. [2024-11-19 01:56:18,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4988888888888889 [2024-11-19 01:56:18,289 INFO L175 Difference]: Start difference. First operand has 131 places, 119 transitions, 940 flow. Second operand 15 states and 449 transitions. [2024-11-19 01:56:18,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 398 transitions, 3395 flow