./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i --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/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:19:44,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:19:45,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:19:45,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:19:45,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:19:45,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:19:45,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:19:45,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:19:45,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:19:45,058 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:19:45,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:19:45,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:19:45,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:19:45,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:19:45,059 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:19:45,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:19:45,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:19:45,060 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:19:45,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:19:45,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:19:45,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:19:45,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:19:45,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:19:45,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:19:45,062 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:19:45,062 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:19:45,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:19:45,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:19:45,063 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:19:45,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:19:45,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:19:45,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:19:45,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:19:45,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:19:45,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:19:45,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:19:45,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:19:45,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:19:45,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:19:45,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:19:45,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:19:45,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:19:45,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2024-11-16 19:19:45,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:19:45,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:19:45,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:19:45,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:19:45,311 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:19:45,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-11-16 19:19:46,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:19:46,778 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:19:46,779 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-11-16 19:19:46,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67faace9b/df627049463f4f9d848b42b485f9f88f/FLAG1ed4364c0 [2024-11-16 19:19:46,804 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67faace9b/df627049463f4f9d848b42b485f9f88f [2024-11-16 19:19:46,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:19:46,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:19:46,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:19:46,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:19:46,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:19:46,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:19:46" (1/1) ... [2024-11-16 19:19:46,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf24ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:46, skipping insertion in model container [2024-11-16 19:19:46,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:19:46" (1/1) ... [2024-11-16 19:19:46,852 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:19:47,042 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/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-11-16 19:19:47,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:19:47,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:19:47,278 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/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i[1107,1120] [2024-11-16 19:19:47,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:19:47,337 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:19:47,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47 WrapperNode [2024-11-16 19:19:47,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:19:47,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:19:47,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:19:47,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:19:47,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,379 INFO L138 Inliner]: procedures = 165, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 96 [2024-11-16 19:19:47,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:19:47,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:19:47,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:19:47,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:19:47,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,413 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-16 19:19:47,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,421 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:19:47,430 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:19:47,431 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:19:47,431 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:19:47,431 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (1/1) ... [2024-11-16 19:19:47,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:19:47,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:19:47,463 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 19:19:47,470 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 19:19:47,507 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-16 19:19:47,508 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-16 19:19:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 19:19:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:19:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:19:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:19:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 19:19:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:19:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:19:47,510 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 19:19:47,621 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:19:47,623 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:19:47,756 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:19:47,757 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:19:47,884 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:19:47,888 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:19:47,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:19:47 BoogieIcfgContainer [2024-11-16 19:19:47,889 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:19:47,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:19:47,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:19:47,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:19:47,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:19:46" (1/3) ... [2024-11-16 19:19:47,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d71fccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:19:47, skipping insertion in model container [2024-11-16 19:19:47,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:19:47" (2/3) ... [2024-11-16 19:19:47,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d71fccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:19:47, skipping insertion in model container [2024-11-16 19:19:47,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:19:47" (3/3) ... [2024-11-16 19:19:47,896 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2024-11-16 19:19:47,909 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:19:47,910 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:19:47,910 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:19:47,942 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:19:47,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 43 transitions, 90 flow [2024-11-16 19:19:48,006 INFO L124 PetriNetUnfolderBase]: 9/42 cut-off events. [2024-11-16 19:19:48,007 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:19:48,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 9/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2024-11-16 19:19:48,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 43 transitions, 90 flow [2024-11-16 19:19:48,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 42 transitions, 87 flow [2024-11-16 19:19:48,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:19:48,031 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;@6595401b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:19:48,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-16 19:19:48,043 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:19:48,044 INFO L124 PetriNetUnfolderBase]: 7/32 cut-off events. [2024-11-16 19:19:48,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:19:48,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:48,046 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:19:48,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-16 19:19:48,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:48,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1313068211, now seen corresponding path program 1 times [2024-11-16 19:19:48,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:48,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664184952] [2024-11-16 19:19:48,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:48,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:48,321 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 19:19:48,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:48,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664184952] [2024-11-16 19:19:48,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664184952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:48,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:48,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:19:48,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49222878] [2024-11-16 19:19:48,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:48,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:19:48,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:48,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:19:48,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:19:48,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-11-16 19:19:48,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 42 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 19:19:48,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:48,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-11-16 19:19:48,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:19:48,594 INFO L124 PetriNetUnfolderBase]: 146/338 cut-off events. [2024-11-16 19:19:48,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:19:48,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 338 events. 146/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1476 event pairs, 63 based on Foata normal form. 67/376 useless extension candidates. Maximal degree in co-relation 602. Up to 184 conditions per place. [2024-11-16 19:19:48,601 INFO L140 encePairwiseOnDemand]: 28/43 looper letters, 34 selfloop transitions, 9 changer transitions 2/56 dead transitions. [2024-11-16 19:19:48,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 56 transitions, 205 flow [2024-11-16 19:19:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:19:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:19:48,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-11-16 19:19:48,613 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5581395348837209 [2024-11-16 19:19:48,614 INFO L175 Difference]: Start difference. First operand has 37 places, 42 transitions, 87 flow. Second operand 5 states and 120 transitions. [2024-11-16 19:19:48,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 56 transitions, 205 flow [2024-11-16 19:19:48,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 56 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:19:48,620 INFO L231 Difference]: Finished difference. Result has 42 places, 40 transitions, 132 flow [2024-11-16 19:19:48,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=132, PETRI_PLACES=42, PETRI_TRANSITIONS=40} [2024-11-16 19:19:48,626 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places. [2024-11-16 19:19:48,626 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 132 flow [2024-11-16 19:19:48,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 19:19:48,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:48,627 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:19:48,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:19:48,627 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-16 19:19:48,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:48,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1357935264, now seen corresponding path program 1 times [2024-11-16 19:19:48,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:48,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428312226] [2024-11-16 19:19:48,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:48,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:48,780 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 19:19:48,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:48,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428312226] [2024-11-16 19:19:48,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428312226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:48,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:48,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:19:48,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638571072] [2024-11-16 19:19:48,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:48,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:19:48,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:48,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:19:48,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:19:48,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-16 19:19:48,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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 19:19:48,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:48,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-16 19:19:48,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:19:48,882 INFO L124 PetriNetUnfolderBase]: 123/325 cut-off events. [2024-11-16 19:19:48,884 INFO L125 PetriNetUnfolderBase]: For 122/131 co-relation queries the response was YES. [2024-11-16 19:19:48,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 325 events. 123/325 cut-off events. For 122/131 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1294 event pairs, 37 based on Foata normal form. 2/317 useless extension candidates. Maximal degree in co-relation 722. Up to 112 conditions per place. [2024-11-16 19:19:48,887 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 34 selfloop transitions, 5 changer transitions 1/52 dead transitions. [2024-11-16 19:19:48,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 52 transitions, 246 flow [2024-11-16 19:19:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:19:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:19:48,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-11-16 19:19:48,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5406976744186046 [2024-11-16 19:19:48,890 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 132 flow. Second operand 4 states and 93 transitions. [2024-11-16 19:19:48,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 52 transitions, 246 flow [2024-11-16 19:19:48,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 52 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:19:48,894 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 151 flow [2024-11-16 19:19:48,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=151, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-11-16 19:19:48,896 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2024-11-16 19:19:48,896 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 151 flow [2024-11-16 19:19:48,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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 19:19:48,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:48,896 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:19:48,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:19:48,897 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-16 19:19:48,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:48,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1846951436, now seen corresponding path program 1 times [2024-11-16 19:19:48,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:48,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642961858] [2024-11-16 19:19:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:48,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:48,970 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 19:19:48,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:48,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642961858] [2024-11-16 19:19:48,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642961858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:48,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:48,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:19:48,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429661122] [2024-11-16 19:19:48,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:48,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:19:48,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:48,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:19:48,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:19:48,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-16 19:19:48,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:19:48,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:48,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-16 19:19:48,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:19:49,038 INFO L124 PetriNetUnfolderBase]: 70/217 cut-off events. [2024-11-16 19:19:49,038 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-16 19:19:49,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 217 events. 70/217 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 794 event pairs, 16 based on Foata normal form. 15/230 useless extension candidates. Maximal degree in co-relation 472. Up to 99 conditions per place. [2024-11-16 19:19:49,042 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 22 selfloop transitions, 4 changer transitions 4/43 dead transitions. [2024-11-16 19:19:49,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 212 flow [2024-11-16 19:19:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:19:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:19:49,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-16 19:19:49,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5658914728682171 [2024-11-16 19:19:49,046 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 151 flow. Second operand 3 states and 73 transitions. [2024-11-16 19:19:49,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 212 flow [2024-11-16 19:19:49,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 43 transitions, 199 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-16 19:19:49,049 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 121 flow [2024-11-16 19:19:49,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-16 19:19:49,051 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2024-11-16 19:19:49,051 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 121 flow [2024-11-16 19:19:49,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:19:49,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:49,051 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:19:49,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:19:49,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-16 19:19:49,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:49,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1824399878, now seen corresponding path program 1 times [2024-11-16 19:19:49,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:49,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525545248] [2024-11-16 19:19:49,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:49,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:49,155 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 19:19:49,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:49,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525545248] [2024-11-16 19:19:49,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525545248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:49,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:49,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:19:49,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227426406] [2024-11-16 19:19:49,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:49,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:19:49,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:49,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:19:49,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:19:49,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 43 [2024-11-16 19:19:49,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 19:19:49,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:49,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 43 [2024-11-16 19:19:49,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:19:49,390 INFO L124 PetriNetUnfolderBase]: 69/198 cut-off events. [2024-11-16 19:19:49,390 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-11-16 19:19:49,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 198 events. 69/198 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 677 event pairs, 41 based on Foata normal form. 4/197 useless extension candidates. Maximal degree in co-relation 445. Up to 116 conditions per place. [2024-11-16 19:19:49,391 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 26 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2024-11-16 19:19:49,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 201 flow [2024-11-16 19:19:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:19:49,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:19:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2024-11-16 19:19:49,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42790697674418604 [2024-11-16 19:19:49,392 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 121 flow. Second operand 5 states and 92 transitions. [2024-11-16 19:19:49,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 201 flow [2024-11-16 19:19:49,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 179 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-16 19:19:49,394 INFO L231 Difference]: Finished difference. Result has 40 places, 32 transitions, 109 flow [2024-11-16 19:19:49,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2024-11-16 19:19:49,395 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2024-11-16 19:19:49,395 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 109 flow [2024-11-16 19:19:49,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 19:19:49,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:49,395 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] [2024-11-16 19:19:49,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:19:49,396 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-16 19:19:49,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash 872857352, now seen corresponding path program 1 times [2024-11-16 19:19:49,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:49,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803278412] [2024-11-16 19:19:49,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:49,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:19:49,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:49,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803278412] [2024-11-16 19:19:49,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803278412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:49,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:49,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:19:49,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680238748] [2024-11-16 19:19:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:49,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:19:49,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:49,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:19:49,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:19:49,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2024-11-16 19:19:49,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 19:19:49,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:49,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2024-11-16 19:19:49,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:19:49,540 INFO L124 PetriNetUnfolderBase]: 83/239 cut-off events. [2024-11-16 19:19:49,541 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-16 19:19:49,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 239 events. 83/239 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 891 event pairs, 29 based on Foata normal form. 8/242 useless extension candidates. Maximal degree in co-relation 509. Up to 89 conditions per place. [2024-11-16 19:19:49,542 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2024-11-16 19:19:49,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 222 flow [2024-11-16 19:19:49,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:19:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:19:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2024-11-16 19:19:49,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40310077519379844 [2024-11-16 19:19:49,543 INFO L175 Difference]: Start difference. First operand has 40 places, 32 transitions, 109 flow. Second operand 6 states and 104 transitions. [2024-11-16 19:19:49,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 222 flow [2024-11-16 19:19:49,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 45 transitions, 206 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 19:19:49,544 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2024-11-16 19:19:49,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2024-11-16 19:19:49,545 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2024-11-16 19:19:49,545 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2024-11-16 19:19:49,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 19:19:49,547 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-16 19:19:49,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-16 19:19:49,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-16 19:19:49,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-16 19:19:49,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-16 19:19:49,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:19:49,549 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-16 19:19:49,553 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:19:49,553 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:19:49,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:19:49 BasicIcfg [2024-11-16 19:19:49,557 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:19:49,558 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:19:49,558 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:19:49,558 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:19:49,559 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:19:47" (3/4) ... [2024-11-16 19:19:49,560 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:19:49,562 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure worker [2024-11-16 19:19:49,564 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-16 19:19:49,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 19:19:49,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-16 19:19:49,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 19:19:49,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 19:19:49,629 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:19:49,631 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:19:49,631 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:19:49,632 INFO L158 Benchmark]: Toolchain (without parser) took 2824.12ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 74.5MB in the beginning and 138.1MB in the end (delta: -63.6MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-11-16 19:19:49,632 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:19:49,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.55ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 74.3MB in the beginning and 188.7MB in the end (delta: -114.4MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2024-11-16 19:19:49,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.45ms. Allocated memory is still 224.4MB. Free memory was 188.7MB in the beginning and 186.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:19:49,632 INFO L158 Benchmark]: Boogie Preprocessor took 48.11ms. Allocated memory is still 224.4MB. Free memory was 186.6MB in the beginning and 184.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:19:49,632 INFO L158 Benchmark]: IcfgBuilder took 458.60ms. Allocated memory is still 224.4MB. Free memory was 184.5MB in the beginning and 155.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-16 19:19:49,633 INFO L158 Benchmark]: TraceAbstraction took 1666.66ms. Allocated memory is still 224.4MB. Free memory was 155.2MB in the beginning and 142.3MB in the end (delta: 12.9MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-16 19:19:49,633 INFO L158 Benchmark]: Witness Printer took 73.13ms. Allocated memory is still 224.4MB. Free memory was 142.3MB in the beginning and 138.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:19:49,637 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 146.8MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.55ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 74.3MB in the beginning and 188.7MB in the end (delta: -114.4MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.45ms. Allocated memory is still 224.4MB. Free memory was 188.7MB in the beginning and 186.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.11ms. Allocated memory is still 224.4MB. Free memory was 186.6MB in the beginning and 184.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 458.60ms. Allocated memory is still 224.4MB. Free memory was 184.5MB in the beginning and 155.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1666.66ms. Allocated memory is still 224.4MB. Free memory was 155.2MB in the beginning and 142.3MB in the end (delta: 12.9MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Witness Printer took 73.13ms. Allocated memory is still 224.4MB. Free memory was 142.3MB in the beginning and 138.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 60 locations, 5 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: 1.6s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 329 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 7 mSDtfsCounter, 329 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=151occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 19:19:49,658 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