./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe033_tso.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/pthread-wmm/safe033_tso.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 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:17:01,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:17:01,206 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:17:01,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:17:01,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:17:01,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:17:01,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:17:01,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:17:01,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:17:01,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:17:01,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:17:01,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:17:01,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:17:01,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:17:01,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:17:01,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:17:01,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:17:01,243 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:17:01,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:17:01,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:17:01,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:17:01,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:17:01,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:17:01,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:17:01,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:17:01,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:17:01,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:17:01,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:17:01,246 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:17:01,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:17:01,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:17:01,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:17:01,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:17:01,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:17:01,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:17:01,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:17:01,248 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:17:01,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:17:01,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:17:01,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:17:01,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:17:01,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:17:01,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 [2024-11-16 19:17:01,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:17:01,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:17:01,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:17:01,470 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:17:01,470 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:17:01,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe033_tso.i [2024-11-16 19:17:02,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:17:02,859 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:17:02,860 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.i [2024-11-16 19:17:02,871 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874f0bb43/9dbfebfd5f4f4b1590098135b8e3fd67/FLAGdfd775bd3 [2024-11-16 19:17:03,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874f0bb43/9dbfebfd5f4f4b1590098135b8e3fd67 [2024-11-16 19:17:03,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:17:03,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:17:03,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:17:03,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:17:03,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:17:03,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435b06a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03, skipping insertion in model container [2024-11-16 19:17:03,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:17:03,437 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.i[945,958] [2024-11-16 19:17:03,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:17:03,584 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:17:03,596 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.i[945,958] [2024-11-16 19:17:03,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:17:03,663 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:17:03,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03 WrapperNode [2024-11-16 19:17:03,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:17:03,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:17:03,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:17:03,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:17:03,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,760 INFO L138 Inliner]: procedures = 174, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2024-11-16 19:17:03,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:17:03,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:17:03,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:17:03,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:17:03,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,791 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 19:17:03,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,794 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:17:03,802 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:17:03,802 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:17:03,802 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:17:03,807 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (1/1) ... [2024-11-16 19:17:03,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:17:03,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:17:03,836 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 19:17:03,838 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 19:17:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:17:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:17:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:17:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:17:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:17:03,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:17:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:17:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:17:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:17:03,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:17:03,882 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 19:17:03,998 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:17:04,000 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:17:04,105 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:17:04,105 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:17:04,165 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:17:04,165 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:17:04,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:17:04 BoogieIcfgContainer [2024-11-16 19:17:04,165 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:17:04,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:17:04,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:17:04,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:17:04,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:17:03" (1/3) ... [2024-11-16 19:17:04,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65244113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:17:04, skipping insertion in model container [2024-11-16 19:17:04,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:03" (2/3) ... [2024-11-16 19:17:04,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65244113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:17:04, skipping insertion in model container [2024-11-16 19:17:04,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:17:04" (3/3) ... [2024-11-16 19:17:04,171 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2024-11-16 19:17:04,184 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:17:04,184 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:17:04,185 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:17:04,215 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:17:04,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 30 transitions, 68 flow [2024-11-16 19:17:04,257 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2024-11-16 19:17:04,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:17:04,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 1/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2024-11-16 19:17:04,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 30 transitions, 68 flow [2024-11-16 19:17:04,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 25 transitions, 56 flow [2024-11-16 19:17:04,269 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:17:04,273 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;@30787513, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:17:04,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-16 19:17:04,280 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:17:04,280 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-16 19:17:04,280 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:17:04,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:04,281 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:17:04,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:17:04,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash 309794956, now seen corresponding path program 1 times [2024-11-16 19:17:04,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:04,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527397657] [2024-11-16 19:17:04,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:04,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:04,661 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 19:17:04,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:04,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527397657] [2024-11-16 19:17:04,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527397657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:04,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:04,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:17:04,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800823627] [2024-11-16 19:17:04,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:04,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:17:04,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:04,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:17:04,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:17:04,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-11-16 19:17:04,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 56 flow. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 19:17:04,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:04,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-11-16 19:17:04,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:04,995 INFO L124 PetriNetUnfolderBase]: 629/1100 cut-off events. [2024-11-16 19:17:04,995 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 19:17:04,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2178 conditions, 1100 events. 629/1100 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5362 event pairs, 295 based on Foata normal form. 42/1141 useless extension candidates. Maximal degree in co-relation 2168. Up to 856 conditions per place. [2024-11-16 19:17:05,004 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 28 selfloop transitions, 3 changer transitions 31/65 dead transitions. [2024-11-16 19:17:05,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 65 transitions, 263 flow [2024-11-16 19:17:05,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:17:05,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:17:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2024-11-16 19:17:05,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2024-11-16 19:17:05,017 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 56 flow. Second operand 7 states and 99 transitions. [2024-11-16 19:17:05,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 65 transitions, 263 flow [2024-11-16 19:17:05,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 65 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:17:05,021 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 89 flow [2024-11-16 19:17:05,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=89, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2024-11-16 19:17:05,025 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2024-11-16 19:17:05,025 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 89 flow [2024-11-16 19:17:05,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 19:17:05,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:05,026 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:17:05,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:17:05,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:17:05,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:05,027 INFO L85 PathProgramCache]: Analyzing trace with hash 750522523, now seen corresponding path program 1 times [2024-11-16 19:17:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:05,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949827277] [2024-11-16 19:17:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:05,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:05,161 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 19:17:05,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:05,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949827277] [2024-11-16 19:17:05,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949827277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:05,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:05,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:17:05,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326441929] [2024-11-16 19:17:05,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:05,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:17:05,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:05,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:17:05,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:17:05,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-16 19:17:05,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 19:17:05,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:05,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-16 19:17:05,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:05,275 INFO L124 PetriNetUnfolderBase]: 348/646 cut-off events. [2024-11-16 19:17:05,276 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-11-16 19:17:05,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 646 events. 348/646 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2770 event pairs, 82 based on Foata normal form. 42/685 useless extension candidates. Maximal degree in co-relation 1571. Up to 319 conditions per place. [2024-11-16 19:17:05,280 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 43 selfloop transitions, 4 changer transitions 1/51 dead transitions. [2024-11-16 19:17:05,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 259 flow [2024-11-16 19:17:05,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:17:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:17:05,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-11-16 19:17:05,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-16 19:17:05,283 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 89 flow. Second operand 4 states and 72 transitions. [2024-11-16 19:17:05,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 259 flow [2024-11-16 19:17:05,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 252 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-16 19:17:05,287 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 108 flow [2024-11-16 19:17:05,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2024-11-16 19:17:05,288 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2024-11-16 19:17:05,288 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 108 flow [2024-11-16 19:17:05,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 19:17:05,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:05,288 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 19:17:05,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:17:05,289 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:17:05,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:05,289 INFO L85 PathProgramCache]: Analyzing trace with hash 266158171, now seen corresponding path program 1 times [2024-11-16 19:17:05,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:05,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676644604] [2024-11-16 19:17:05,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:05,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:05,415 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 19:17:05,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:05,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676644604] [2024-11-16 19:17:05,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676644604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:05,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:05,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:17:05,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512321245] [2024-11-16 19:17:05,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:05,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:17:05,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:05,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:17:05,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:17:05,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-11-16 19:17:05,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 19:17:05,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:05,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-11-16 19:17:05,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:05,649 INFO L124 PetriNetUnfolderBase]: 500/927 cut-off events. [2024-11-16 19:17:05,650 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-11-16 19:17:05,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2402 conditions, 927 events. 500/927 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4430 event pairs, 138 based on Foata normal form. 30/956 useless extension candidates. Maximal degree in co-relation 2386. Up to 477 conditions per place. [2024-11-16 19:17:05,653 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 37 selfloop transitions, 5 changer transitions 36/81 dead transitions. [2024-11-16 19:17:05,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 81 transitions, 423 flow [2024-11-16 19:17:05,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:17:05,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:17:05,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 110 transitions. [2024-11-16 19:17:05,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-16 19:17:05,654 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 108 flow. Second operand 7 states and 110 transitions. [2024-11-16 19:17:05,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 81 transitions, 423 flow [2024-11-16 19:17:05,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 81 transitions, 404 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-16 19:17:05,658 INFO L231 Difference]: Finished difference. Result has 48 places, 30 transitions, 132 flow [2024-11-16 19:17:05,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=48, PETRI_TRANSITIONS=30} [2024-11-16 19:17:05,659 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 16 predicate places. [2024-11-16 19:17:05,659 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 30 transitions, 132 flow [2024-11-16 19:17:05,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 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 19:17:05,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:05,660 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 19:17:05,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:17:05,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:17:05,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1051890127, now seen corresponding path program 1 times [2024-11-16 19:17:05,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:05,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986444988] [2024-11-16 19:17:05,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:05,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:05,750 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 19:17:05,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:05,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986444988] [2024-11-16 19:17:05,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986444988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:05,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:05,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:17:05,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221623495] [2024-11-16 19:17:05,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:05,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:17:05,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:05,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:17:05,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:17:05,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-16 19:17:05,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 30 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 19:17:05,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:05,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-16 19:17:05,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:05,839 INFO L124 PetriNetUnfolderBase]: 246/474 cut-off events. [2024-11-16 19:17:05,839 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-16 19:17:05,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 474 events. 246/474 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1872 event pairs, 74 based on Foata normal form. 38/509 useless extension candidates. Maximal degree in co-relation 1263. Up to 209 conditions per place. [2024-11-16 19:17:05,842 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 33 selfloop transitions, 6 changer transitions 5/47 dead transitions. [2024-11-16 19:17:05,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 47 transitions, 282 flow [2024-11-16 19:17:05,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:17:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:17:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2024-11-16 19:17:05,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48 [2024-11-16 19:17:05,844 INFO L175 Difference]: Start difference. First operand has 48 places, 30 transitions, 132 flow. Second operand 5 states and 72 transitions. [2024-11-16 19:17:05,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 47 transitions, 282 flow [2024-11-16 19:17:05,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 236 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-16 19:17:05,847 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 124 flow [2024-11-16 19:17:05,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=124, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2024-11-16 19:17:05,849 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 11 predicate places. [2024-11-16 19:17:05,849 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 124 flow [2024-11-16 19:17:05,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 19:17:05,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:05,850 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] [2024-11-16 19:17:05,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:17:05,851 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-16 19:17:05,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:05,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1039785792, now seen corresponding path program 1 times [2024-11-16 19:17:05,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:05,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012066764] [2024-11-16 19:17:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:05,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:05,953 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 19:17:05,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:05,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012066764] [2024-11-16 19:17:05,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012066764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:05,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:05,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:17:05,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967993801] [2024-11-16 19:17:05,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:05,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:17:05,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:05,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:17:05,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:17:05,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-11-16 19:17:05,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:17:05,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:05,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-11-16 19:17:05,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:06,080 INFO L124 PetriNetUnfolderBase]: 251/485 cut-off events. [2024-11-16 19:17:06,081 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-16 19:17:06,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1329 conditions, 485 events. 251/485 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1908 event pairs, 74 based on Foata normal form. 4/486 useless extension candidates. Maximal degree in co-relation 1311. Up to 212 conditions per place. [2024-11-16 19:17:06,083 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2024-11-16 19:17:06,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 316 flow [2024-11-16 19:17:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:17:06,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:17:06,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 74 transitions. [2024-11-16 19:17:06,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4111111111111111 [2024-11-16 19:17:06,086 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 124 flow. Second operand 6 states and 74 transitions. [2024-11-16 19:17:06,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 316 flow [2024-11-16 19:17:06,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 259 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-16 19:17:06,088 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-11-16 19:17:06,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-11-16 19:17:06,088 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2024-11-16 19:17:06,089 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-11-16 19:17:06,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 19:17:06,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-16 19:17:06,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-16 19:17:06,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-16 19:17:06,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:17:06,095 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-16 19:17:06,099 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:17:06,099 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:17:06,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:17:06 BasicIcfg [2024-11-16 19:17:06,104 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:17:06,104 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:17:06,104 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:17:06,105 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:17:06,105 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:17:04" (3/4) ... [2024-11-16 19:17:06,107 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:17:06,109 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-16 19:17:06,109 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-16 19:17:06,111 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-16 19:17:06,112 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-16 19:17:06,112 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-16 19:17:06,112 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 19:17:06,177 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:17:06,178 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:17:06,178 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:17:06,179 INFO L158 Benchmark]: Toolchain (without parser) took 2930.99ms. Allocated memory is still 205.5MB. Free memory was 136.3MB in the beginning and 62.8MB in the end (delta: 73.5MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2024-11-16 19:17:06,179 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:17:06,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.40ms. Allocated memory is still 205.5MB. Free memory was 136.0MB in the beginning and 113.5MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 19:17:06,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.90ms. Allocated memory is still 205.5MB. Free memory was 113.5MB in the beginning and 175.3MB in the end (delta: -61.8MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-11-16 19:17:06,179 INFO L158 Benchmark]: Boogie Preprocessor took 39.23ms. Allocated memory is still 205.5MB. Free memory was 174.5MB in the beginning and 173.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:17:06,180 INFO L158 Benchmark]: IcfgBuilder took 363.69ms. Allocated memory is still 205.5MB. Free memory was 173.2MB in the beginning and 154.7MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 19:17:06,180 INFO L158 Benchmark]: TraceAbstraction took 1937.28ms. Allocated memory is still 205.5MB. Free memory was 153.5MB in the beginning and 67.0MB in the end (delta: 86.5MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2024-11-16 19:17:06,180 INFO L158 Benchmark]: Witness Printer took 73.45ms. Allocated memory is still 205.5MB. Free memory was 67.0MB in the beginning and 62.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:17:06,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.40ms. Allocated memory is still 205.5MB. Free memory was 136.0MB in the beginning and 113.5MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.90ms. Allocated memory is still 205.5MB. Free memory was 113.5MB in the beginning and 175.3MB in the end (delta: -61.8MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.23ms. Allocated memory is still 205.5MB. Free memory was 174.5MB in the beginning and 173.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 363.69ms. Allocated memory is still 205.5MB. Free memory was 173.2MB in the beginning and 154.7MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1937.28ms. Allocated memory is still 205.5MB. Free memory was 153.5MB in the beginning and 67.0MB in the end (delta: 86.5MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. * Witness Printer took 73.45ms. Allocated memory is still 205.5MB. Free memory was 67.0MB in the beginning and 62.8MB 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: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 47 locations, 3 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: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 561 IncrementalHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 2 mSDtfsCounter, 561 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=3, InterpolantAutomatonStates: 29, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 19:17:06,200 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