./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/chl-node-trans.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 c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:24:46,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:24:46,692 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:24:46,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:24:46,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:24:46,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:24:46,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:24:46,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:24:46,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:24:46,744 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:24:46,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:24:46,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:24:46,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:24:46,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:24:46,747 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:24:46,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:24:46,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:24:46,750 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:24:46,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:24:46,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:24:46,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:24:46,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:24:46,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:24:46,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:24:46,755 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:24:46,755 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:24:46,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:24:46,756 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:24:46,756 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:24:46,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:24:46,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:24:46,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:24:46,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:24:46,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:24:46,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:24:46,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:24:46,758 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:24:46,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:24:46,758 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:24:46,760 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:24:46,760 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:24:46,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:24:46,760 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2024-11-16 19:24:46,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:24:47,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:24:47,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:24:47,010 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:24:47,011 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:24:47,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-16 19:24:48,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:24:48,724 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:24:48,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-16 19:24:48,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/111611746/b0c3f7ead90d42bfa27a22f226ffed2f/FLAGad8fda587 [2024-11-16 19:24:49,097 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/111611746/b0c3f7ead90d42bfa27a22f226ffed2f [2024-11-16 19:24:49,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:24:49,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:24:49,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:24:49,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:24:49,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:24:49,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785109aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49, skipping insertion in model container [2024-11-16 19:24:49,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:24:49,337 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/chl-node-trans.wvr.c[3984,3997] [2024-11-16 19:24:49,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:24:49,365 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:24:49,390 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/chl-node-trans.wvr.c[3984,3997] [2024-11-16 19:24:49,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:24:49,418 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:24:49,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49 WrapperNode [2024-11-16 19:24:49,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:24:49,420 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:24:49,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:24:49,421 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:24:49,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,522 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 418 [2024-11-16 19:24:49,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:24:49,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:24:49,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:24:49,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:24:49,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,537 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,556 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 9, 15]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-11-16 19:24:49,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,576 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:24:49,598 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:24:49,598 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:24:49,598 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:24:49,599 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (1/1) ... [2024-11-16 19:24:49,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:24:49,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:24:49,640 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) [2024-11-16 19:24:49,643 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 [2024-11-16 19:24:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:24:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:24:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:24:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:24:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:24:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:24:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:24:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-16 19:24:49,698 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-16 19:24:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-16 19:24:49,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-16 19:24:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-16 19:24:49,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-16 19:24:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:24:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:24:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:24:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:24:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:24:49,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:24:49,703 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:24:49,845 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:24:49,846 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:24:50,497 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:24:50,498 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:24:50,979 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:24:50,980 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:24:50,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:24:50 BoogieIcfgContainer [2024-11-16 19:24:50,981 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:24:50,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:24:50,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:24:50,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:24:50,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:24:49" (1/3) ... [2024-11-16 19:24:50,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384560e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:24:50, skipping insertion in model container [2024-11-16 19:24:50,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:24:49" (2/3) ... [2024-11-16 19:24:50,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384560e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:24:50, skipping insertion in model container [2024-11-16 19:24:50,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:24:50" (3/3) ... [2024-11-16 19:24:50,991 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2024-11-16 19:24:51,010 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:24:51,011 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:24:51,011 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:24:51,138 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-16 19:24:51,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 49 transitions, 119 flow [2024-11-16 19:24:51,209 INFO L124 PetriNetUnfolderBase]: 12/46 cut-off events. [2024-11-16 19:24:51,210 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 19:24:51,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 12/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-16 19:24:51,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 49 transitions, 119 flow [2024-11-16 19:24:51,217 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 45 transitions, 108 flow [2024-11-16 19:24:51,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:24:51,234 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;@3a75f10a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:24:51,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 19:24:51,253 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:24:51,253 INFO L124 PetriNetUnfolderBase]: 12/44 cut-off events. [2024-11-16 19:24:51,253 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 19:24:51,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:51,254 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:51,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:51,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1880650075, now seen corresponding path program 1 times [2024-11-16 19:24:51,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:51,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803073749] [2024-11-16 19:24:51,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:51,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:24:51,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:51,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803073749] [2024-11-16 19:24:51,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803073749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:51,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:51,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:24:51,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482523838] [2024-11-16 19:24:51,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:51,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 19:24:51,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:51,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 19:24:51,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 19:24:51,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-16 19:24:51,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 108 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2024-11-16 19:24:51,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:51,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-16 19:24:51,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:51,733 INFO L124 PetriNetUnfolderBase]: 38/94 cut-off events. [2024-11-16 19:24:51,734 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-16 19:24:51,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 94 events. 38/94 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 138 event pairs, 32 based on Foata normal form. 6/100 useless extension candidates. Maximal degree in co-relation 120. Up to 82 conditions per place. [2024-11-16 19:24:51,736 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 26 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2024-11-16 19:24:51,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 39 transitions, 148 flow [2024-11-16 19:24:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 19:24:51,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 19:24:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions. [2024-11-16 19:24:51,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6530612244897959 [2024-11-16 19:24:51,750 INFO L175 Difference]: Start difference. First operand has 43 places, 45 transitions, 108 flow. Second operand 2 states and 64 transitions. [2024-11-16 19:24:51,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 39 transitions, 148 flow [2024-11-16 19:24:51,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 136 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-16 19:24:51,756 INFO L231 Difference]: Finished difference. Result has 38 places, 39 transitions, 84 flow [2024-11-16 19:24:51,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=84, PETRI_PLACES=38, PETRI_TRANSITIONS=39} [2024-11-16 19:24:51,762 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -5 predicate places. [2024-11-16 19:24:51,763 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 39 transitions, 84 flow [2024-11-16 19:24:51,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2024-11-16 19:24:51,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:51,764 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] [2024-11-16 19:24:51,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:24:51,765 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:51,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:51,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1256887183, now seen corresponding path program 1 times [2024-11-16 19:24:51,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:51,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671962235] [2024-11-16 19:24:51,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:51,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:24:52,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:52,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671962235] [2024-11-16 19:24:52,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671962235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:52,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:52,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:24:52,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395068344] [2024-11-16 19:24:52,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:52,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:24:52,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:24:52,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:24:52,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-16 19:24:52,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-16 19:24:52,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:52,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-16 19:24:52,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:52,405 INFO L124 PetriNetUnfolderBase]: 38/96 cut-off events. [2024-11-16 19:24:52,405 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 19:24:52,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 96 events. 38/96 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 137 event pairs, 32 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 188. Up to 85 conditions per place. [2024-11-16 19:24:52,406 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 28 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2024-11-16 19:24:52,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 40 transitions, 146 flow [2024-11-16 19:24:52,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:24:52,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:24:52,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-16 19:24:52,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-11-16 19:24:52,411 INFO L175 Difference]: Start difference. First operand has 38 places, 39 transitions, 84 flow. Second operand 3 states and 70 transitions. [2024-11-16 19:24:52,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 40 transitions, 146 flow [2024-11-16 19:24:52,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 40 transitions, 146 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:24:52,414 INFO L231 Difference]: Finished difference. Result has 41 places, 40 transitions, 96 flow [2024-11-16 19:24:52,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=40} [2024-11-16 19:24:52,418 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2024-11-16 19:24:52,419 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 40 transitions, 96 flow [2024-11-16 19:24:52,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-16 19:24:52,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:52,419 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:52,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:24:52,420 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:52,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash -651465930, now seen corresponding path program 1 times [2024-11-16 19:24:52,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:52,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659974277] [2024-11-16 19:24:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:52,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 19:24:52,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:52,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659974277] [2024-11-16 19:24:52,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659974277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:52,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:52,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:24:52,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004726399] [2024-11-16 19:24:52,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:52,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:24:52,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:52,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:24:52,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:24:52,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-16 19:24:52,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-16 19:24:52,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:52,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-16 19:24:52,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:52,817 INFO L124 PetriNetUnfolderBase]: 38/98 cut-off events. [2024-11-16 19:24:52,818 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 19:24:52,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 98 events. 38/98 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 137 event pairs, 32 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 196. Up to 84 conditions per place. [2024-11-16 19:24:52,819 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 27 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2024-11-16 19:24:52,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 160 flow [2024-11-16 19:24:52,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:24:52,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:24:52,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-16 19:24:52,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-16 19:24:52,821 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 96 flow. Second operand 4 states and 84 transitions. [2024-11-16 19:24:52,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 160 flow [2024-11-16 19:24:52,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:24:52,823 INFO L231 Difference]: Finished difference. Result has 44 places, 41 transitions, 112 flow [2024-11-16 19:24:52,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=44, PETRI_TRANSITIONS=41} [2024-11-16 19:24:52,824 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-11-16 19:24:52,824 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 41 transitions, 112 flow [2024-11-16 19:24:52,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-16 19:24:52,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:52,825 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:52,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:24:52,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:52,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:52,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1579676864, now seen corresponding path program 1 times [2024-11-16 19:24:52,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:52,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722013570] [2024-11-16 19:24:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:52,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 19:24:52,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:52,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722013570] [2024-11-16 19:24:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722013570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:52,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:52,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:24:52,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781233717] [2024-11-16 19:24:52,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:52,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:24:52,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:52,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:24:52,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:24:52,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-16 19:24:52,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 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) [2024-11-16 19:24:52,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:52,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-16 19:24:52,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:53,081 INFO L124 PetriNetUnfolderBase]: 38/100 cut-off events. [2024-11-16 19:24:53,081 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-16 19:24:53,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 100 events. 38/100 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 137 event pairs, 32 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 206. Up to 85 conditions per place. [2024-11-16 19:24:53,082 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 28 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2024-11-16 19:24:53,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 42 transitions, 178 flow [2024-11-16 19:24:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:24:53,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:24:53,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-16 19:24:53,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-16 19:24:53,085 INFO L175 Difference]: Start difference. First operand has 44 places, 41 transitions, 112 flow. Second operand 4 states and 84 transitions. [2024-11-16 19:24:53,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 42 transitions, 178 flow [2024-11-16 19:24:53,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:24:53,087 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 126 flow [2024-11-16 19:24:53,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2024-11-16 19:24:53,088 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-11-16 19:24:53,088 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 126 flow [2024-11-16 19:24:53,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 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) [2024-11-16 19:24:53,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:53,089 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:53,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:24:53,089 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:53,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash -537045137, now seen corresponding path program 1 times [2024-11-16 19:24:53,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:53,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659171337] [2024-11-16 19:24:53,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:53,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:53,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 19:24:53,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:53,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659171337] [2024-11-16 19:24:53,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659171337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:53,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:53,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:24:53,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306024963] [2024-11-16 19:24:53,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:53,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:24:53,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:53,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:24:53,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:24:53,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-16 19:24:53,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-16 19:24:53,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:53,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-16 19:24:53,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:53,386 INFO L124 PetriNetUnfolderBase]: 38/102 cut-off events. [2024-11-16 19:24:53,387 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-16 19:24:53,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 102 events. 38/102 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 137 event pairs, 32 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 215. Up to 87 conditions per place. [2024-11-16 19:24:53,388 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 30 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2024-11-16 19:24:53,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 43 transitions, 194 flow [2024-11-16 19:24:53,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:24:53,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:24:53,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-16 19:24:53,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42346938775510207 [2024-11-16 19:24:53,392 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 126 flow. Second operand 4 states and 83 transitions. [2024-11-16 19:24:53,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 43 transitions, 194 flow [2024-11-16 19:24:53,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:24:53,394 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 136 flow [2024-11-16 19:24:53,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2024-11-16 19:24:53,395 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-11-16 19:24:53,395 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 136 flow [2024-11-16 19:24:53,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-16 19:24:53,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:53,397 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:53,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:24:53,398 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:53,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:53,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1405959389, now seen corresponding path program 1 times [2024-11-16 19:24:53,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:53,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782875855] [2024-11-16 19:24:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:53,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 19:24:53,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:53,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782875855] [2024-11-16 19:24:53,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782875855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:53,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:53,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:24:53,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770711981] [2024-11-16 19:24:53,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:53,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:24:53,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:53,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:24:53,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:24:53,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-16 19:24:53,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-16 19:24:53,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:53,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-16 19:24:53,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:53,729 INFO L124 PetriNetUnfolderBase]: 38/104 cut-off events. [2024-11-16 19:24:53,729 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-16 19:24:53,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 104 events. 38/104 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 137 event pairs, 32 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 222. Up to 88 conditions per place. [2024-11-16 19:24:53,730 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 31 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2024-11-16 19:24:53,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 206 flow [2024-11-16 19:24:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:24:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:24:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-16 19:24:53,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42346938775510207 [2024-11-16 19:24:53,733 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 136 flow. Second operand 4 states and 83 transitions. [2024-11-16 19:24:53,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 206 flow [2024-11-16 19:24:53,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 44 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:24:53,734 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 146 flow [2024-11-16 19:24:53,735 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-11-16 19:24:53,735 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 7 predicate places. [2024-11-16 19:24:53,735 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 146 flow [2024-11-16 19:24:53,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-16 19:24:53,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:53,736 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:53,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:24:53,736 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:53,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:53,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1953388657, now seen corresponding path program 1 times [2024-11-16 19:24:53,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:53,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856524289] [2024-11-16 19:24:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:53,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:53,906 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 19:24:53,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:53,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856524289] [2024-11-16 19:24:53,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856524289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:53,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:53,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:24:53,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205770095] [2024-11-16 19:24:53,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:53,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:24:53,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:53,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:24:53,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:24:53,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-16 19:24:53,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 146 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-16 19:24:53,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:53,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-16 19:24:53,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:54,012 INFO L124 PetriNetUnfolderBase]: 38/106 cut-off events. [2024-11-16 19:24:54,013 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-16 19:24:54,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 106 events. 38/106 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 138 event pairs, 32 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 229. Up to 89 conditions per place. [2024-11-16 19:24:54,014 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 32 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2024-11-16 19:24:54,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 45 transitions, 218 flow [2024-11-16 19:24:54,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:24:54,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:24:54,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-16 19:24:54,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42346938775510207 [2024-11-16 19:24:54,015 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 146 flow. Second operand 4 states and 83 transitions. [2024-11-16 19:24:54,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 45 transitions, 218 flow [2024-11-16 19:24:54,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:24:54,018 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 156 flow [2024-11-16 19:24:54,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-11-16 19:24:54,019 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-11-16 19:24:54,019 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 156 flow [2024-11-16 19:24:54,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-16 19:24:54,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:54,019 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:54,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:24:54,020 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:54,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash -541805758, now seen corresponding path program 1 times [2024-11-16 19:24:54,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:54,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626342033] [2024-11-16 19:24:54,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:54,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 19:24:55,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:55,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626342033] [2024-11-16 19:24:55,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626342033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:55,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:55,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:24:55,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920939627] [2024-11-16 19:24:55,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:55,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:24:55,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:55,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:24:55,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:24:55,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-16 19:24:55,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:55,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:55,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-16 19:24:55,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:55,503 INFO L124 PetriNetUnfolderBase]: 39/125 cut-off events. [2024-11-16 19:24:55,504 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-16 19:24:55,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 125 events. 39/125 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 282 event pairs, 7 based on Foata normal form. 1/126 useless extension candidates. Maximal degree in co-relation 268. Up to 41 conditions per place. [2024-11-16 19:24:55,505 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 42 selfloop transitions, 2 changer transitions 7/64 dead transitions. [2024-11-16 19:24:55,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 64 transitions, 305 flow [2024-11-16 19:24:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:24:55,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:24:55,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-11-16 19:24:55,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2024-11-16 19:24:55,509 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 156 flow. Second operand 5 states and 126 transitions. [2024-11-16 19:24:55,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 64 transitions, 305 flow [2024-11-16 19:24:55,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 64 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:24:55,513 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 167 flow [2024-11-16 19:24:55,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=167, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2024-11-16 19:24:55,515 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2024-11-16 19:24:55,516 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 167 flow [2024-11-16 19:24:55,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:55,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:55,516 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:55,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 19:24:55,517 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:55,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:55,520 INFO L85 PathProgramCache]: Analyzing trace with hash 494580512, now seen corresponding path program 2 times [2024-11-16 19:24:55,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:55,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099773053] [2024-11-16 19:24:55,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:55,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 19:24:56,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:56,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099773053] [2024-11-16 19:24:56,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099773053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:56,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:56,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:24:56,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246560334] [2024-11-16 19:24:56,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:56,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:24:56,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:56,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:24:56,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:24:56,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-16 19:24:56,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 167 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:56,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:56,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-16 19:24:56,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:56,881 INFO L124 PetriNetUnfolderBase]: 35/130 cut-off events. [2024-11-16 19:24:56,881 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-11-16 19:24:56,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 130 events. 35/130 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 309 event pairs, 10 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 327. Up to 48 conditions per place. [2024-11-16 19:24:56,883 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 41 selfloop transitions, 3 changer transitions 5/62 dead transitions. [2024-11-16 19:24:56,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 62 transitions, 315 flow [2024-11-16 19:24:56,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:24:56,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:24:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2024-11-16 19:24:56,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5020408163265306 [2024-11-16 19:24:56,884 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 167 flow. Second operand 5 states and 123 transitions. [2024-11-16 19:24:56,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 62 transitions, 315 flow [2024-11-16 19:24:56,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 62 transitions, 308 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-16 19:24:56,886 INFO L231 Difference]: Finished difference. Result has 61 places, 47 transitions, 184 flow [2024-11-16 19:24:56,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=184, PETRI_PLACES=61, PETRI_TRANSITIONS=47} [2024-11-16 19:24:56,887 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2024-11-16 19:24:56,887 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 47 transitions, 184 flow [2024-11-16 19:24:56,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:56,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:56,888 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:56,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 19:24:56,888 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:56,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:56,889 INFO L85 PathProgramCache]: Analyzing trace with hash 173239830, now seen corresponding path program 3 times [2024-11-16 19:24:56,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:56,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685366266] [2024-11-16 19:24:56,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:56,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 19:24:57,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:57,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685366266] [2024-11-16 19:24:57,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685366266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:57,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:57,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:24:57,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924543843] [2024-11-16 19:24:57,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:57,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:24:57,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:57,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:24:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:24:57,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-16 19:24:57,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 47 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:57,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:57,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-16 19:24:57,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:57,872 INFO L124 PetriNetUnfolderBase]: 35/133 cut-off events. [2024-11-16 19:24:57,873 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2024-11-16 19:24:57,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 133 events. 35/133 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 358 event pairs, 8 based on Foata normal form. 1/134 useless extension candidates. Maximal degree in co-relation 385. Up to 50 conditions per place. [2024-11-16 19:24:57,875 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 40 selfloop transitions, 2 changer transitions 9/64 dead transitions. [2024-11-16 19:24:57,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 64 transitions, 347 flow [2024-11-16 19:24:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:24:57,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:24:57,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2024-11-16 19:24:57,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5061224489795918 [2024-11-16 19:24:57,876 INFO L175 Difference]: Start difference. First operand has 61 places, 47 transitions, 184 flow. Second operand 5 states and 124 transitions. [2024-11-16 19:24:57,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 64 transitions, 347 flow [2024-11-16 19:24:57,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 336 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-16 19:24:57,879 INFO L231 Difference]: Finished difference. Result has 65 places, 47 transitions, 191 flow [2024-11-16 19:24:57,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2024-11-16 19:24:57,881 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 22 predicate places. [2024-11-16 19:24:57,881 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 191 flow [2024-11-16 19:24:57,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:57,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:57,882 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:57,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 19:24:57,882 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:57,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1663218626, now seen corresponding path program 4 times [2024-11-16 19:24:57,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:57,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712306314] [2024-11-16 19:24:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:57,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 19:24:58,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:58,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712306314] [2024-11-16 19:24:58,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712306314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:58,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:58,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:24:58,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148783902] [2024-11-16 19:24:58,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:58,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:24:58,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:58,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:24:58,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:24:58,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-16 19:24:58,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 191 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:58,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:58,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-16 19:24:58,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:24:58,889 INFO L124 PetriNetUnfolderBase]: 30/116 cut-off events. [2024-11-16 19:24:58,891 INFO L125 PetriNetUnfolderBase]: For 280/280 co-relation queries the response was YES. [2024-11-16 19:24:58,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 116 events. 30/116 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 223 event pairs, 15 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 360. Up to 64 conditions per place. [2024-11-16 19:24:58,892 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 40 selfloop transitions, 3 changer transitions 7/63 dead transitions. [2024-11-16 19:24:58,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 63 transitions, 359 flow [2024-11-16 19:24:58,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:24:58,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:24:58,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-11-16 19:24:58,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49795918367346936 [2024-11-16 19:24:58,893 INFO L175 Difference]: Start difference. First operand has 65 places, 47 transitions, 191 flow. Second operand 5 states and 122 transitions. [2024-11-16 19:24:58,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 63 transitions, 359 flow [2024-11-16 19:24:58,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 63 transitions, 340 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-16 19:24:58,898 INFO L231 Difference]: Finished difference. Result has 67 places, 47 transitions, 198 flow [2024-11-16 19:24:58,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=198, PETRI_PLACES=67, PETRI_TRANSITIONS=47} [2024-11-16 19:24:58,899 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 24 predicate places. [2024-11-16 19:24:58,899 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 198 flow [2024-11-16 19:24:58,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:58,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:24:58,900 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:24:58,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 19:24:58,900 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:24:58,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:24:58,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1523425914, now seen corresponding path program 5 times [2024-11-16 19:24:58,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:24:58,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928131046] [2024-11-16 19:24:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:24:58,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:24:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:24:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 19:24:59,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:24:59,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928131046] [2024-11-16 19:24:59,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928131046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:24:59,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:24:59,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:24:59,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655023345] [2024-11-16 19:24:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:24:59,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:24:59,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:24:59,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:24:59,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:24:59,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-16 19:24:59,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:24:59,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:24:59,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-16 19:24:59,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:25:00,047 INFO L124 PetriNetUnfolderBase]: 24/95 cut-off events. [2024-11-16 19:25:00,048 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2024-11-16 19:25:00,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 95 events. 24/95 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 141 event pairs, 7 based on Foata normal form. 1/96 useless extension candidates. Maximal degree in co-relation 300. Up to 45 conditions per place. [2024-11-16 19:25:00,049 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 33 selfloop transitions, 1 changer transitions 14/61 dead transitions. [2024-11-16 19:25:00,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 61 transitions, 336 flow [2024-11-16 19:25:00,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:25:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:25:00,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-11-16 19:25:00,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49795918367346936 [2024-11-16 19:25:00,050 INFO L175 Difference]: Start difference. First operand has 67 places, 47 transitions, 198 flow. Second operand 5 states and 122 transitions. [2024-11-16 19:25:00,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 61 transitions, 336 flow [2024-11-16 19:25:00,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 61 transitions, 324 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-16 19:25:00,053 INFO L231 Difference]: Finished difference. Result has 68 places, 45 transitions, 177 flow [2024-11-16 19:25:00,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2024-11-16 19:25:00,053 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 25 predicate places. [2024-11-16 19:25:00,054 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 45 transitions, 177 flow [2024-11-16 19:25:00,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:25:00,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:25:00,054 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:25:00,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 19:25:00,055 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:25:00,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:25:00,055 INFO L85 PathProgramCache]: Analyzing trace with hash 129362150, now seen corresponding path program 6 times [2024-11-16 19:25:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:25:00,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055825869] [2024-11-16 19:25:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:25:00,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:25:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:25:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 19:25:00,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:25:00,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055825869] [2024-11-16 19:25:00,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055825869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:25:00,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:25:00,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:25:00,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125044606] [2024-11-16 19:25:00,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:25:00,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:25:00,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:25:00,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:25:00,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:25:00,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-16 19:25:00,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 45 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:25:00,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:25:00,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-16 19:25:00,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:25:00,980 INFO L124 PetriNetUnfolderBase]: 15/69 cut-off events. [2024-11-16 19:25:00,980 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2024-11-16 19:25:00,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 69 events. 15/69 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 5 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 201. Up to 38 conditions per place. [2024-11-16 19:25:00,980 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2024-11-16 19:25:00,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 49 transitions, 265 flow [2024-11-16 19:25:00,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:25:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:25:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2024-11-16 19:25:00,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2024-11-16 19:25:00,982 INFO L175 Difference]: Start difference. First operand has 68 places, 45 transitions, 177 flow. Second operand 5 states and 112 transitions. [2024-11-16 19:25:00,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 49 transitions, 265 flow [2024-11-16 19:25:00,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 49 transitions, 247 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-16 19:25:00,983 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2024-11-16 19:25:00,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2024-11-16 19:25:00,985 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-11-16 19:25:00,985 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2024-11-16 19:25:00,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-16 19:25:00,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-16 19:25:00,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-16 19:25:00,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-16 19:25:00,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-16 19:25:00,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 19:25:00,989 INFO L407 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:25:00,992 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:25:00,993 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:25:00,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:25:00 BasicIcfg [2024-11-16 19:25:00,998 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:25:00,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:25:00,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:25:00,999 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:25:01,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:24:50" (3/4) ... [2024-11-16 19:25:01,002 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:25:01,005 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-16 19:25:01,005 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-16 19:25:01,005 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-16 19:25:01,023 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 237 nodes and edges [2024-11-16 19:25:01,027 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 117 nodes and edges [2024-11-16 19:25:01,027 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-16 19:25:01,028 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-16 19:25:01,154 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:25:01,154 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:25:01,154 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:25:01,155 INFO L158 Benchmark]: Toolchain (without parser) took 12053.27ms. Allocated memory was 174.1MB in the beginning and 530.6MB in the end (delta: 356.5MB). Free memory was 106.3MB in the beginning and 470.2MB in the end (delta: -363.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:25:01,155 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:25:01,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.77ms. Allocated memory is still 174.1MB. Free memory was 106.0MB in the beginning and 90.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 19:25:01,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.25ms. Allocated memory is still 174.1MB. Free memory was 90.9MB in the beginning and 144.0MB in the end (delta: -53.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 19:25:01,156 INFO L158 Benchmark]: Boogie Preprocessor took 74.37ms. Allocated memory is still 174.1MB. Free memory was 144.0MB in the beginning and 140.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:25:01,156 INFO L158 Benchmark]: IcfgBuilder took 1382.48ms. Allocated memory is still 174.1MB. Free memory was 140.5MB in the beginning and 69.7MB in the end (delta: 70.8MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. [2024-11-16 19:25:01,156 INFO L158 Benchmark]: TraceAbstraction took 10015.84ms. Allocated memory was 174.1MB in the beginning and 530.6MB in the end (delta: 356.5MB). Free memory was 68.7MB in the beginning and 479.6MB in the end (delta: -411.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:25:01,156 INFO L158 Benchmark]: Witness Printer took 155.51ms. Allocated memory is still 530.6MB. Free memory was 479.6MB in the beginning and 470.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-16 19:25:01,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.77ms. Allocated memory is still 174.1MB. Free memory was 106.0MB in the beginning and 90.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.25ms. Allocated memory is still 174.1MB. Free memory was 90.9MB in the beginning and 144.0MB in the end (delta: -53.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.37ms. Allocated memory is still 174.1MB. Free memory was 144.0MB in the beginning and 140.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1382.48ms. Allocated memory is still 174.1MB. Free memory was 140.5MB in the beginning and 69.7MB in the end (delta: 70.8MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10015.84ms. Allocated memory was 174.1MB in the beginning and 530.6MB in the end (delta: 356.5MB). Free memory was 68.7MB in the beginning and 479.6MB in the end (delta: -411.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 155.51ms. Allocated memory is still 530.6MB. Free memory was 479.6MB in the beginning and 470.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: 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, 47 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.8s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1108 IncrementalHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 15 mSDtfsCounter, 1108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=11, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 525 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 512 ConstructedInterpolants, 0 QuantifiedInterpolants, 1891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 102/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 19:25:01,192 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