./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/test-easy10.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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/test-easy10.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24421fae56d27ddfd314bb85e4431c40a1e6738a845aa97472d8668d2b4dde52 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:34:06,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:34:06,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:34:06,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:34:06,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:34:07,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:34:07,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:34:07,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:34:07,021 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:34:07,022 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:34:07,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:34:07,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:34:07,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:34:07,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:34:07,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:34:07,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:34:07,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:34:07,025 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:34:07,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:34:07,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:34:07,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:34:07,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:34:07,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:34:07,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:34:07,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:34:07,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:34:07,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:34:07,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:34:07,032 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:34:07,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:34:07,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:34:07,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:34:07,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:34:07,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:34:07,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:34:07,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:34:07,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:34:07,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:34:07,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:34:07,037 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:34:07,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:34:07,038 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:34:07,039 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24421fae56d27ddfd314bb85e4431c40a1e6738a845aa97472d8668d2b4dde52 [2024-11-16 19:34:07,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:34:07,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:34:07,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:34:07,325 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:34:07,326 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:34:07,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-11-16 19:34:08,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:34:08,950 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:34:08,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c [2024-11-16 19:34:08,962 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30720d418/526fda514bf444c48b0605be4f2812b8/FLAG7ed68d46f [2024-11-16 19:34:08,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30720d418/526fda514bf444c48b0605be4f2812b8 [2024-11-16 19:34:08,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:34:08,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:34:08,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:34:08,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:34:08,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:34:08,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:34:08" (1/1) ... [2024-11-16 19:34:08,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d262e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:08, skipping insertion in model container [2024-11-16 19:34:08,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:34:08" (1/1) ... [2024-11-16 19:34:09,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:34:09,228 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c[2547,2560] [2024-11-16 19:34:09,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:34:09,245 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:34:09,265 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy10.wvr.c[2547,2560] [2024-11-16 19:34:09,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:34:09,281 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:34:09,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09 WrapperNode [2024-11-16 19:34:09,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:34:09,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:34:09,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:34:09,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:34:09,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,327 INFO L138 Inliner]: procedures = 20, calls = 16, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2024-11-16 19:34:09,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:34:09,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:34:09,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:34:09,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:34:09,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,352 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 19:34:09,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,358 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:34:09,364 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:34:09,364 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:34:09,365 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:34:09,365 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (1/1) ... [2024-11-16 19:34:09,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:34:09,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:34:09,403 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 19:34:09,408 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 19:34:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:34:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-16 19:34:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-16 19:34:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-16 19:34:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-16 19:34:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-16 19:34:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-16 19:34:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-16 19:34:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-16 19:34:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:34:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:34:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:34:09,460 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 19:34:09,583 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:34:09,585 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:34:09,894 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:34:09,896 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:34:10,077 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:34:10,077 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:34:10,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:34:10 BoogieIcfgContainer [2024-11-16 19:34:10,078 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:34:10,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:34:10,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:34:10,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:34:10,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:34:08" (1/3) ... [2024-11-16 19:34:10,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd07b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:34:10, skipping insertion in model container [2024-11-16 19:34:10,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:09" (2/3) ... [2024-11-16 19:34:10,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd07b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:34:10, skipping insertion in model container [2024-11-16 19:34:10,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:34:10" (3/3) ... [2024-11-16 19:34:10,086 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2024-11-16 19:34:10,106 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:34:10,106 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:34:10,106 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:34:10,184 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-16 19:34:10,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 60 transitions, 148 flow [2024-11-16 19:34:10,267 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2024-11-16 19:34:10,267 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 19:34:10,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 56 events. 0/56 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-16 19:34:10,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 60 transitions, 148 flow [2024-11-16 19:34:10,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 55 transitions, 134 flow [2024-11-16 19:34:10,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:34:10,300 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;@3c0cf09d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:34:10,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-16 19:34:10,324 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:34:10,324 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2024-11-16 19:34:10,325 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 19:34:10,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:34:10,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:34:10,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:34:10,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:34:10,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1595918204, now seen corresponding path program 1 times [2024-11-16 19:34:10,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:34:10,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509662600] [2024-11-16 19:34:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:34:10,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:34:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:34:10,952 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 19:34:10,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:34:10,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509662600] [2024-11-16 19:34:10,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509662600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:34:10,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:34:10,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:34:10,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357554964] [2024-11-16 19:34:10,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:34:10,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:34:10,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:34:10,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:34:10,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:34:10,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 60 [2024-11-16 19:34:10,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 19:34:10,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:34:10,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 60 [2024-11-16 19:34:11,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:34:13,662 INFO L124 PetriNetUnfolderBase]: 22838/30875 cut-off events. [2024-11-16 19:34:13,663 INFO L125 PetriNetUnfolderBase]: For 835/835 co-relation queries the response was YES. [2024-11-16 19:34:13,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63061 conditions, 30875 events. 22838/30875 cut-off events. For 835/835 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 171470 event pairs, 7169 based on Foata normal form. 440/31303 useless extension candidates. Maximal degree in co-relation 59981. Up to 24496 conditions per place. [2024-11-16 19:34:13,885 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 70 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2024-11-16 19:34:13,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 77 transitions, 328 flow [2024-11-16 19:34:13,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:34:13,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:34:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-16 19:34:13,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-16 19:34:13,899 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 134 flow. Second operand 3 states and 100 transitions. [2024-11-16 19:34:13,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 77 transitions, 328 flow [2024-11-16 19:34:14,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 77 transitions, 308 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-16 19:34:14,021 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 126 flow [2024-11-16 19:34:14,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2024-11-16 19:34:14,028 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -5 predicate places. [2024-11-16 19:34:14,028 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 126 flow [2024-11-16 19:34:14,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 19:34:14,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:34:14,029 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:34:14,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:34:14,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:34:14,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:34:14,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1581868704, now seen corresponding path program 2 times [2024-11-16 19:34:14,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:34:14,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806277458] [2024-11-16 19:34:14,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:34:14,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:34:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:34:14,270 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 19:34:14,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:34:14,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806277458] [2024-11-16 19:34:14,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806277458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:34:14,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:34:14,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:34:14,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257176224] [2024-11-16 19:34:14,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:34:14,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:34:14,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:34:14,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:34:14,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:34:14,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 60 [2024-11-16 19:34:14,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 19:34:14,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:34:14,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 60 [2024-11-16 19:34:14,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:34:15,777 INFO L124 PetriNetUnfolderBase]: 17539/23845 cut-off events. [2024-11-16 19:34:15,777 INFO L125 PetriNetUnfolderBase]: For 1244/1244 co-relation queries the response was YES. [2024-11-16 19:34:15,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49400 conditions, 23845 events. 17539/23845 cut-off events. For 1244/1244 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 123621 event pairs, 6369 based on Foata normal form. 434/24259 useless extension candidates. Maximal degree in co-relation 19340. Up to 17342 conditions per place. [2024-11-16 19:34:15,889 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 68 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-11-16 19:34:15,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 75 transitions, 313 flow [2024-11-16 19:34:15,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:34:15,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:34:15,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-11-16 19:34:15,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5444444444444444 [2024-11-16 19:34:15,893 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 126 flow. Second operand 3 states and 98 transitions. [2024-11-16 19:34:15,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 75 transitions, 313 flow [2024-11-16 19:34:15,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 75 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:34:15,898 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 130 flow [2024-11-16 19:34:15,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-11-16 19:34:15,900 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, -4 predicate places. [2024-11-16 19:34:15,900 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 130 flow [2024-11-16 19:34:15,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 19:34:15,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:34:15,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:34:15,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:34:15,901 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:34:15,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:34:15,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1653709342, now seen corresponding path program 3 times [2024-11-16 19:34:15,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:34:15,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202183026] [2024-11-16 19:34:15,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:34:15,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:34:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:34:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:34:18,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:34:18,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202183026] [2024-11-16 19:34:18,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202183026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:34:18,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:34:18,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 19:34:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777137936] [2024-11-16 19:34:18,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:34:18,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 19:34:18,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:34:18,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 19:34:18,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-16 19:34:18,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 60 [2024-11-16 19:34:18,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 130 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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 19:34:18,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:34:18,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 60 [2024-11-16 19:34:18,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:34:23,850 INFO L124 PetriNetUnfolderBase]: 40518/55563 cut-off events. [2024-11-16 19:34:23,850 INFO L125 PetriNetUnfolderBase]: For 4089/4089 co-relation queries the response was YES. [2024-11-16 19:34:23,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117773 conditions, 55563 events. 40518/55563 cut-off events. For 4089/4089 co-relation queries the response was YES. Maximal size of possible extension queue 1178. Compared 333677 event pairs, 5199 based on Foata normal form. 1/55553 useless extension candidates. Maximal degree in co-relation 25344. Up to 14408 conditions per place. [2024-11-16 19:34:24,163 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 251 selfloop transitions, 16 changer transitions 19/291 dead transitions. [2024-11-16 19:34:24,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 291 transitions, 1269 flow [2024-11-16 19:34:24,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 19:34:24,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 19:34:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 422 transitions. [2024-11-16 19:34:24,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4688888888888889 [2024-11-16 19:34:24,173 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 130 flow. Second operand 15 states and 422 transitions. [2024-11-16 19:34:24,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 291 transitions, 1269 flow [2024-11-16 19:34:24,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 291 transitions, 1249 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:34:24,329 INFO L231 Difference]: Finished difference. Result has 89 places, 69 transitions, 250 flow [2024-11-16 19:34:24,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=250, PETRI_PLACES=89, PETRI_TRANSITIONS=69} [2024-11-16 19:34:24,332 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 21 predicate places. [2024-11-16 19:34:24,332 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 69 transitions, 250 flow [2024-11-16 19:34:24,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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 19:34:24,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:34:24,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:34:24,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:34:24,334 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:34:24,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:34:24,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1206019800, now seen corresponding path program 4 times [2024-11-16 19:34:24,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:34:24,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587666026] [2024-11-16 19:34:24,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:34:24,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:34:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:34:24,439 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 19:34:24,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:34:24,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587666026] [2024-11-16 19:34:24,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587666026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:34:24,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:34:24,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:34:24,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24830539] [2024-11-16 19:34:24,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:34:24,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:34:24,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:34:24,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:34:24,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:34:24,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 60 [2024-11-16 19:34:24,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 69 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 19:34:24,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:34:24,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 60 [2024-11-16 19:34:24,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:34:27,291 INFO L124 PetriNetUnfolderBase]: 32602/45048 cut-off events. [2024-11-16 19:34:27,291 INFO L125 PetriNetUnfolderBase]: For 29815/29815 co-relation queries the response was YES. [2024-11-16 19:34:27,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120816 conditions, 45048 events. 32602/45048 cut-off events. For 29815/29815 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 265158 event pairs, 12735 based on Foata normal form. 540/45579 useless extension candidates. Maximal degree in co-relation 120775. Up to 39090 conditions per place. [2024-11-16 19:34:27,645 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 86 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-11-16 19:34:27,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 93 transitions, 503 flow [2024-11-16 19:34:27,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:34:27,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:34:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-16 19:34:27,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-11-16 19:34:27,649 INFO L175 Difference]: Start difference. First operand has 89 places, 69 transitions, 250 flow. Second operand 3 states and 102 transitions. [2024-11-16 19:34:27,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 93 transitions, 503 flow [2024-11-16 19:34:28,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 93 transitions, 487 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-16 19:34:28,306 INFO L231 Difference]: Finished difference. Result has 85 places, 67 transitions, 234 flow [2024-11-16 19:34:28,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=85, PETRI_TRANSITIONS=67} [2024-11-16 19:34:28,308 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 17 predicate places. [2024-11-16 19:34:28,308 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 67 transitions, 234 flow [2024-11-16 19:34:28,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 19:34:28,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:34:28,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:34:28,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:34:28,309 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:34:28,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:34:28,309 INFO L85 PathProgramCache]: Analyzing trace with hash 147480268, now seen corresponding path program 5 times [2024-11-16 19:34:28,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:34:28,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495879733] [2024-11-16 19:34:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:34:28,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:34:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:34:30,106 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 19:34:30,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:34:30,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495879733] [2024-11-16 19:34:30,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495879733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:34:30,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:34:30,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 19:34:30,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125215380] [2024-11-16 19:34:30,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:34:30,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 19:34:30,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:34:30,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 19:34:30,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-16 19:34:30,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 60 [2024-11-16 19:34:30,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 67 transitions, 234 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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 19:34:30,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:34:30,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 60 [2024-11-16 19:34:30,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:34:36,998 INFO L124 PetriNetUnfolderBase]: 60054/84046 cut-off events. [2024-11-16 19:34:36,998 INFO L125 PetriNetUnfolderBase]: For 48861/48861 co-relation queries the response was YES. [2024-11-16 19:34:37,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221306 conditions, 84046 events. 60054/84046 cut-off events. For 48861/48861 co-relation queries the response was YES. Maximal size of possible extension queue 1897. Compared 545885 event pairs, 9538 based on Foata normal form. 1/84038 useless extension candidates. Maximal degree in co-relation 169958. Up to 24934 conditions per place. [2024-11-16 19:34:37,772 INFO L140 encePairwiseOnDemand]: 44/60 looper letters, 291 selfloop transitions, 26 changer transitions 10/332 dead transitions. [2024-11-16 19:34:37,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 332 transitions, 1832 flow [2024-11-16 19:34:37,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 19:34:37,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 19:34:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 416 transitions. [2024-11-16 19:34:37,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4622222222222222 [2024-11-16 19:34:37,775 INFO L175 Difference]: Start difference. First operand has 85 places, 67 transitions, 234 flow. Second operand 15 states and 416 transitions. [2024-11-16 19:34:37,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 332 transitions, 1832 flow [2024-11-16 19:34:38,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 332 transitions, 1812 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:34:38,549 INFO L231 Difference]: Finished difference. Result has 109 places, 87 transitions, 472 flow [2024-11-16 19:34:38,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=472, PETRI_PLACES=109, PETRI_TRANSITIONS=87} [2024-11-16 19:34:38,550 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 41 predicate places. [2024-11-16 19:34:38,550 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 87 transitions, 472 flow [2024-11-16 19:34:38,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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 19:34:38,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:34:38,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:34:38,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:34:38,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:34:38,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:34:38,552 INFO L85 PathProgramCache]: Analyzing trace with hash -220437026, now seen corresponding path program 6 times [2024-11-16 19:34:38,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:34:38,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239183249] [2024-11-16 19:34:38,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:34:38,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:34:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:34:39,951 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 19:34:39,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:34:39,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239183249] [2024-11-16 19:34:39,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239183249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:34:39,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:34:39,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 19:34:39,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799514672] [2024-11-16 19:34:39,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:34:39,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 19:34:39,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:34:39,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 19:34:39,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-16 19:34:39,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 60 [2024-11-16 19:34:39,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 87 transitions, 472 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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 19:34:39,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:34:39,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 60 [2024-11-16 19:34:39,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:34:50,361 INFO L124 PetriNetUnfolderBase]: 88783/125108 cut-off events. [2024-11-16 19:34:50,362 INFO L125 PetriNetUnfolderBase]: For 190066/190066 co-relation queries the response was YES. [2024-11-16 19:34:51,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380610 conditions, 125108 events. 88783/125108 cut-off events. For 190066/190066 co-relation queries the response was YES. Maximal size of possible extension queue 2790. Compared 862443 event pairs, 14208 based on Foata normal form. 1/125102 useless extension candidates. Maximal degree in co-relation 380310. Up to 36303 conditions per place. [2024-11-16 19:34:51,425 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 311 selfloop transitions, 48 changer transitions 10/374 dead transitions. [2024-11-16 19:34:51,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 374 transitions, 2595 flow [2024-11-16 19:34:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 19:34:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-16 19:34:51,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 413 transitions. [2024-11-16 19:34:51,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4588888888888889 [2024-11-16 19:34:51,428 INFO L175 Difference]: Start difference. First operand has 109 places, 87 transitions, 472 flow. Second operand 15 states and 413 transitions. [2024-11-16 19:34:51,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 374 transitions, 2595 flow [2024-11-16 19:34:56,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 374 transitions, 2563 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-16 19:34:56,359 INFO L231 Difference]: Finished difference. Result has 131 places, 119 transitions, 972 flow [2024-11-16 19:34:56,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=972, PETRI_PLACES=131, PETRI_TRANSITIONS=119} [2024-11-16 19:34:56,360 INFO L277 CegarLoopForPetriNet]: 68 programPoint places, 63 predicate places. [2024-11-16 19:34:56,360 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 119 transitions, 972 flow [2024-11-16 19:34:56,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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 19:34:56,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:34:56,360 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:34:56,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:34:56,361 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:34:56,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:34:56,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1346558056, now seen corresponding path program 7 times [2024-11-16 19:34:56,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:34:56,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837784378] [2024-11-16 19:34:56,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:34:56,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:34:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:34:57,854 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 19:34:57,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:34:57,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837784378] [2024-11-16 19:34:57,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837784378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:34:57,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:34:57,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 19:34:57,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129374638] [2024-11-16 19:34:57,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:34:57,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 19:34:57,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:34:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 19:34:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-16 19:34:57,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 60 [2024-11-16 19:34:57,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 119 transitions, 972 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 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 19:34:57,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:34:57,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 60 [2024-11-16 19:34:57,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand