./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 023d838f 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-023d838-m [2024-11-10 10:20:05,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:20:05,161 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:20:05,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:20:05,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:20:05,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:20:05,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:20:05,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:20:05,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:20:05,198 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:20:05,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:20:05,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:20:05,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:20:05,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:20:05,202 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:20:05,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:20:05,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:20:05,203 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:20:05,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:20:05,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:20:05,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:20:05,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:20:05,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:20:05,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:20:05,207 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:20:05,207 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:20:05,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:20:05,208 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:20:05,208 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:20:05,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:20:05,209 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:20:05,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:20:05,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:20:05,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:20:05,210 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:20:05,210 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:20:05,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:20:05,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:20:05,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:20:05,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:20:05,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:20:05,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:20:05,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 [2024-11-10 10:20:05,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:20:05,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:20:05,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:20:05,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:20:05,503 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:20:05,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe033_tso.i [2024-11-10 10:20:06,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:20:07,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:20:07,213 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.i [2024-11-10 10:20:07,226 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acdab0fda/65939c0784a14707a2d3f35ffd690cf3/FLAG00932fb7c [2024-11-10 10:20:07,239 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acdab0fda/65939c0784a14707a2d3f35ffd690cf3 [2024-11-10 10:20:07,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:20:07,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:20:07,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:20:07,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:20:07,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:20:07,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf02740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07, skipping insertion in model container [2024-11-10 10:20:07,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,300 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:20:07,487 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] [2024-11-10 10:20:07,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:20:07,667 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:20:07,681 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] [2024-11-10 10:20:07,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:20:07,764 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:20:07,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07 WrapperNode [2024-11-10 10:20:07,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:20:07,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:20:07,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:20:07,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:20:07,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,820 INFO L138 Inliner]: procedures = 174, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2024-11-10 10:20:07,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:20:07,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:20:07,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:20:07,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:20:07,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,835 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,858 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]. [2024-11-10 10:20:07,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,863 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:20:07,871 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:20:07,871 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:20:07,872 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:20:07,873 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (1/1) ... [2024-11-10 10:20:07,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:20:07,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:20:07,912 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) [2024-11-10 10:20:07,916 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 [2024-11-10 10:20:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:20:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:20:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 10:20:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 10:20:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 10:20:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 10:20:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:20:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:20:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:20:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:20:07,957 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:20:08,065 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:20:08,067 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:20:08,207 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:20:08,209 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:20:08,294 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:20:08,294 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:20:08,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:08 BoogieIcfgContainer [2024-11-10 10:20:08,295 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:20:08,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:20:08,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:20:08,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:20:08,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:20:07" (1/3) ... [2024-11-10 10:20:08,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fb69f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:20:08, skipping insertion in model container [2024-11-10 10:20:08,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:20:07" (2/3) ... [2024-11-10 10:20:08,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9fb69f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:20:08, skipping insertion in model container [2024-11-10 10:20:08,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:08" (3/3) ... [2024-11-10 10:20:08,303 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2024-11-10 10:20:08,320 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:20:08,320 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:20:08,320 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:20:08,370 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:20:08,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 30 transitions, 68 flow [2024-11-10 10:20:08,438 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2024-11-10 10:20:08,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:20:08,441 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. [2024-11-10 10:20:08,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 30 transitions, 68 flow [2024-11-10 10:20:08,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 25 transitions, 56 flow [2024-11-10 10:20:08,456 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:20:08,462 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;@281e1b7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:20:08,463 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-10 10:20:08,476 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:20:08,476 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-10 10:20:08,476 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:20:08,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:20:08,477 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:20:08,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-10 10:20:08,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:20:08,487 INFO L85 PathProgramCache]: Analyzing trace with hash 309794956, now seen corresponding path program 1 times [2024-11-10 10:20:08,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:20:08,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934186800] [2024-11-10 10:20:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:20:08,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:20:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:20:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:20:09,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:20:09,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934186800] [2024-11-10 10:20:09,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934186800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:20:09,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:20:09,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:20:09,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376802722] [2024-11-10 10:20:09,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:20:09,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:20:09,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:20:09,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:20:09,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:20:09,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-11-10 10:20:09,110 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) [2024-11-10 10:20:09,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:20:09,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-11-10 10:20:09,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:20:09,488 INFO L124 PetriNetUnfolderBase]: 629/1100 cut-off events. [2024-11-10 10:20:09,489 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 10:20:09,501 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. [2024-11-10 10:20:09,512 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 28 selfloop transitions, 3 changer transitions 31/65 dead transitions. [2024-11-10 10:20:09,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 65 transitions, 263 flow [2024-11-10 10:20:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:20:09,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:20:09,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2024-11-10 10:20:09,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4714285714285714 [2024-11-10 10:20:09,529 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 56 flow. Second operand 7 states and 99 transitions. [2024-11-10 10:20:09,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 65 transitions, 263 flow [2024-11-10 10:20:09,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 65 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:20:09,537 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 89 flow [2024-11-10 10:20:09,539 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} [2024-11-10 10:20:09,544 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2024-11-10 10:20:09,545 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 89 flow [2024-11-10 10:20:09,545 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) [2024-11-10 10:20:09,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:20:09,545 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:20:09,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:20:09,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-10 10:20:09,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:20:09,547 INFO L85 PathProgramCache]: Analyzing trace with hash 750522523, now seen corresponding path program 1 times [2024-11-10 10:20:09,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:20:09,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398855302] [2024-11-10 10:20:09,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:20:09,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:20:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:20:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:20:09,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:20:09,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398855302] [2024-11-10 10:20:09,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398855302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:20:09,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:20:09,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:20:09,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118814459] [2024-11-10 10:20:09,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:20:09,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:20:09,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:20:09,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:20:09,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:20:09,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-10 10:20:09,732 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) [2024-11-10 10:20:09,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:20:09,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-10 10:20:09,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:20:09,928 INFO L124 PetriNetUnfolderBase]: 348/646 cut-off events. [2024-11-10 10:20:09,929 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-11-10 10:20:09,932 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. [2024-11-10 10:20:09,936 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 43 selfloop transitions, 4 changer transitions 1/51 dead transitions. [2024-11-10 10:20:09,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 259 flow [2024-11-10 10:20:09,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:20:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:20:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-11-10 10:20:09,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-10 10:20:09,938 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 89 flow. Second operand 4 states and 72 transitions. [2024-11-10 10:20:09,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 259 flow [2024-11-10 10:20:09,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 252 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-10 10:20:09,945 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 108 flow [2024-11-10 10:20:09,946 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} [2024-11-10 10:20:09,946 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2024-11-10 10:20:09,947 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 108 flow [2024-11-10 10:20:09,947 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) [2024-11-10 10:20:09,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:20:09,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:20:09,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:20:09,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-10 10:20:09,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:20:09,951 INFO L85 PathProgramCache]: Analyzing trace with hash 266158171, now seen corresponding path program 1 times [2024-11-10 10:20:09,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:20:09,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260367814] [2024-11-10 10:20:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:20:09,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:20:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:20:10,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:20:10,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:20:10,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260367814] [2024-11-10 10:20:10,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260367814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:20:10,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:20:10,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:20:10,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994953407] [2024-11-10 10:20:10,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:20:10,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:20:10,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:20:10,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:20:10,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:20:10,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-11-10 10:20:10,180 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) [2024-11-10 10:20:10,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:20:10,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-11-10 10:20:10,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:20:10,442 INFO L124 PetriNetUnfolderBase]: 500/927 cut-off events. [2024-11-10 10:20:10,443 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2024-11-10 10:20:10,445 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. [2024-11-10 10:20:10,448 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 37 selfloop transitions, 5 changer transitions 36/81 dead transitions. [2024-11-10 10:20:10,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 81 transitions, 423 flow [2024-11-10 10:20:10,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:20:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:20:10,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 110 transitions. [2024-11-10 10:20:10,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-10 10:20:10,451 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 108 flow. Second operand 7 states and 110 transitions. [2024-11-10 10:20:10,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 81 transitions, 423 flow [2024-11-10 10:20:10,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 81 transitions, 404 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-10 10:20:10,456 INFO L231 Difference]: Finished difference. Result has 48 places, 30 transitions, 132 flow [2024-11-10 10:20:10,457 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} [2024-11-10 10:20:10,458 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 16 predicate places. [2024-11-10 10:20:10,459 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 30 transitions, 132 flow [2024-11-10 10:20:10,459 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) [2024-11-10 10:20:10,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:20:10,460 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:20:10,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:20:10,460 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-10 10:20:10,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:20:10,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1051890127, now seen corresponding path program 1 times [2024-11-10 10:20:10,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:20:10,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660330838] [2024-11-10 10:20:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:20:10,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:20:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:20:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:20:10,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:20:10,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660330838] [2024-11-10 10:20:10,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660330838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:20:10,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:20:10,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:20:10,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309264417] [2024-11-10 10:20:10,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:20:10,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:20:10,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:20:10,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:20:10,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:20:10,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-10 10:20:10,585 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) [2024-11-10 10:20:10,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:20:10,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-10 10:20:10,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:20:10,726 INFO L124 PetriNetUnfolderBase]: 246/474 cut-off events. [2024-11-10 10:20:10,726 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-10 10:20:10,728 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. [2024-11-10 10:20:10,729 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 33 selfloop transitions, 6 changer transitions 5/47 dead transitions. [2024-11-10 10:20:10,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 47 transitions, 282 flow [2024-11-10 10:20:10,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:20:10,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:20:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2024-11-10 10:20:10,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48 [2024-11-10 10:20:10,732 INFO L175 Difference]: Start difference. First operand has 48 places, 30 transitions, 132 flow. Second operand 5 states and 72 transitions. [2024-11-10 10:20:10,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 47 transitions, 282 flow [2024-11-10 10:20:10,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 236 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-10 10:20:10,737 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 124 flow [2024-11-10 10:20:10,737 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} [2024-11-10 10:20:10,738 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 11 predicate places. [2024-11-10 10:20:10,739 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 124 flow [2024-11-10 10:20:10,739 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) [2024-11-10 10:20:10,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:20:10,740 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] [2024-11-10 10:20:10,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:20:10,740 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-10 10:20:10,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:20:10,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1039785792, now seen corresponding path program 1 times [2024-11-10 10:20:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:20:10,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640350861] [2024-11-10 10:20:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:20:10,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:20:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:20:10,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:20:10,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:20:10,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640350861] [2024-11-10 10:20:10,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640350861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:20:10,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:20:10,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:20:10,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479311029] [2024-11-10 10:20:10,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:20:10,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:20:10,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:20:10,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:20:10,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:20:10,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-11-10 10:20:10,873 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) [2024-11-10 10:20:10,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:20:10,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-11-10 10:20:10,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:20:11,041 INFO L124 PetriNetUnfolderBase]: 251/485 cut-off events. [2024-11-10 10:20:11,042 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-10 10:20:11,043 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. [2024-11-10 10:20:11,045 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2024-11-10 10:20:11,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 316 flow [2024-11-10 10:20:11,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:20:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:20:11,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 74 transitions. [2024-11-10 10:20:11,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4111111111111111 [2024-11-10 10:20:11,048 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 124 flow. Second operand 6 states and 74 transitions. [2024-11-10 10:20:11,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 316 flow [2024-11-10 10:20:11,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 259 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-10 10:20:11,051 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-11-10 10:20:11,052 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} [2024-11-10 10:20:11,052 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2024-11-10 10:20:11,054 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-11-10 10:20:11,054 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) [2024-11-10 10:20:11,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-10 10:20:11,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-10 10:20:11,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-10 10:20:11,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:20:11,060 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-10 10:20:11,064 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 10:20:11,066 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 10:20:11,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:20:11 BasicIcfg [2024-11-10 10:20:11,073 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 10:20:11,074 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 10:20:11,074 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 10:20:11,074 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 10:20:11,075 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:20:08" (3/4) ... [2024-11-10 10:20:11,077 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 10:20:11,080 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-10 10:20:11,080 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-10 10:20:11,083 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-10 10:20:11,084 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-10 10:20:11,085 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-10 10:20:11,085 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 10:20:11,172 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 10:20:11,172 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 10:20:11,172 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 10:20:11,174 INFO L158 Benchmark]: Toolchain (without parser) took 3929.82ms. Allocated memory was 161.5MB in the beginning and 228.6MB in the end (delta: 67.1MB). Free memory was 105.2MB in the beginning and 129.1MB in the end (delta: -23.9MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2024-11-10 10:20:11,174 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 161.5MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 10:20:11,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.09ms. Allocated memory is still 161.5MB. Free memory was 104.9MB in the beginning and 81.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 10:20:11,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.95ms. Allocated memory is still 161.5MB. Free memory was 81.6MB in the beginning and 79.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:20:11,175 INFO L158 Benchmark]: Boogie Preprocessor took 49.17ms. Allocated memory is still 161.5MB. Free memory was 79.7MB in the beginning and 77.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:20:11,175 INFO L158 Benchmark]: IcfgBuilder took 423.85ms. Allocated memory is still 161.5MB. Free memory was 77.6MB in the beginning and 59.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-10 10:20:11,176 INFO L158 Benchmark]: TraceAbstraction took 2776.61ms. Allocated memory was 161.5MB in the beginning and 228.6MB in the end (delta: 67.1MB). Free memory was 58.5MB in the beginning and 133.3MB in the end (delta: -74.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 10:20:11,176 INFO L158 Benchmark]: Witness Printer took 98.25ms. Allocated memory is still 228.6MB. Free memory was 133.3MB in the beginning and 129.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:20:11,179 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 161.5MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.09ms. Allocated memory is still 161.5MB. Free memory was 104.9MB in the beginning and 81.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.95ms. Allocated memory is still 161.5MB. Free memory was 81.6MB in the beginning and 79.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.17ms. Allocated memory is still 161.5MB. Free memory was 79.7MB in the beginning and 77.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 423.85ms. Allocated memory is still 161.5MB. Free memory was 77.6MB in the beginning and 59.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2776.61ms. Allocated memory was 161.5MB in the beginning and 228.6MB in the end (delta: 67.1MB). Free memory was 58.5MB in the beginning and 133.3MB in the end (delta: -74.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.25ms. Allocated memory is still 228.6MB. Free memory was 133.3MB in the beginning and 129.1MB 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: 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: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.4s 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, 1.0s 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! [2024-11-10 10:20:11,214 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