./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/peterson.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-atomic/peterson.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 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:06:01,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:06:01,960 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:06:01,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:06:01,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:06:01,999 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:06:02,000 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:06:02,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:06:02,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:06:02,004 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:06:02,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:06:02,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:06:02,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:06:02,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:06:02,007 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:06:02,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:06:02,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:06:02,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:06:02,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:06:02,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:06:02,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:06:02,009 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:06:02,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:06:02,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:06:02,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:06:02,014 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:06:02,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:06:02,014 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:06:02,015 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:06:02,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:06:02,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:06:02,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:06:02,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:06:02,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:06:02,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:06:02,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:06:02,016 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:06:02,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:06:02,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:06:02,017 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:06:02,017 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:06:02,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:06:02,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ea11bc1281710e3131473f2a673d7d78c2a42824b03a7d695132107cc74f895 [2024-11-16 19:06:02,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:06:02,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:06:02,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:06:02,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:06:02,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:06:02,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/peterson.i [2024-11-16 19:06:03,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:06:04,054 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:06:04,054 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2024-11-16 19:06:04,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35dffd09a/db94c47259af4bab962b80e5bf59f87c/FLAGc4fc2e0cd [2024-11-16 19:06:04,084 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35dffd09a/db94c47259af4bab962b80e5bf59f87c [2024-11-16 19:06:04,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:06:04,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:06:04,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:06:04,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:06:04,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:06:04,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f05eb8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04, skipping insertion in model container [2024-11-16 19:06:04,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:06:04,568 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-atomic/peterson.i[32348,32361] [2024-11-16 19:06:04,575 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-atomic/peterson.i[32502,32515] [2024-11-16 19:06:04,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:06:04,591 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:06:04,642 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-atomic/peterson.i[32348,32361] [2024-11-16 19:06:04,644 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-atomic/peterson.i[32502,32515] [2024-11-16 19:06:04,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:06:04,686 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:06:04,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04 WrapperNode [2024-11-16 19:06:04,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:06:04,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:06:04,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:06:04,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:06:04,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,733 INFO L138 Inliner]: procedures = 166, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-11-16 19:06:04,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:06:04,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:06:04,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:06:04,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:06:04,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,745 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,758 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 19:06:04,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,764 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:06:04,769 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:06:04,769 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:06:04,769 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:06:04,770 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (1/1) ... [2024-11-16 19:06:04,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:06:04,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:06:04,800 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 19:06:04,802 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 19:06:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-16 19:06:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-16 19:06:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 19:06:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 19:06:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:06:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:06:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:06:04,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:06:04,853 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 19:06:04,978 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:06:04,980 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:06:05,123 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:06:05,123 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:06:05,185 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:06:05,185 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:06:05,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:06:05 BoogieIcfgContainer [2024-11-16 19:06:05,186 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:06:05,188 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:06:05,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:06:05,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:06:05,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:06:04" (1/3) ... [2024-11-16 19:06:05,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36abe5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:06:05, skipping insertion in model container [2024-11-16 19:06:05,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:04" (2/3) ... [2024-11-16 19:06:05,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36abe5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:06:05, skipping insertion in model container [2024-11-16 19:06:05,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:06:05" (3/3) ... [2024-11-16 19:06:05,196 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2024-11-16 19:06:05,220 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:06:05,221 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:06:05,221 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:06:05,282 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 19:06:05,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 38 transitions, 90 flow [2024-11-16 19:06:05,352 INFO L124 PetriNetUnfolderBase]: 6/36 cut-off events. [2024-11-16 19:06:05,352 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 19:06:05,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 36 events. 6/36 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-16 19:06:05,356 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 38 transitions, 90 flow [2024-11-16 19:06:05,360 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 34 transitions, 77 flow [2024-11-16 19:06:05,373 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:06:05,381 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;@7add5cd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:06:05,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-16 19:06:05,393 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:06:05,393 INFO L124 PetriNetUnfolderBase]: 5/25 cut-off events. [2024-11-16 19:06:05,393 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:06:05,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:05,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:05,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:05,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:05,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1642426029, now seen corresponding path program 1 times [2024-11-16 19:06:05,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:05,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895248027] [2024-11-16 19:06:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:05,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:05,613 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 19:06:05,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:05,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895248027] [2024-11-16 19:06:05,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895248027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:05,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:05,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:06:05,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914616414] [2024-11-16 19:06:05,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:05,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 19:06:05,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:05,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 19:06:05,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 19:06:05,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-11-16 19:06:05,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 77 flow. Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 19:06:05,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:05,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-11-16 19:06:05,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:05,774 INFO L124 PetriNetUnfolderBase]: 114/278 cut-off events. [2024-11-16 19:06:05,776 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-16 19:06:05,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 278 events. 114/278 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1288 event pairs, 100 based on Foata normal form. 54/301 useless extension candidates. Maximal degree in co-relation 455. Up to 192 conditions per place. [2024-11-16 19:06:05,782 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 16 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2024-11-16 19:06:05,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 101 flow [2024-11-16 19:06:05,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 19:06:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 19:06:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 52 transitions. [2024-11-16 19:06:05,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2024-11-16 19:06:05,798 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 77 flow. Second operand 2 states and 52 transitions. [2024-11-16 19:06:05,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 101 flow [2024-11-16 19:06:05,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 19:06:05,803 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 64 flow [2024-11-16 19:06:05,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2024-11-16 19:06:05,810 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2024-11-16 19:06:05,811 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 64 flow [2024-11-16 19:06:05,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 19:06:05,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:05,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:05,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:06:05,812 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:05,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:05,813 INFO L85 PathProgramCache]: Analyzing trace with hash -625385604, now seen corresponding path program 1 times [2024-11-16 19:06:05,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:05,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059008133] [2024-11-16 19:06:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:05,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:05,915 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 19:06:05,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:05,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059008133] [2024-11-16 19:06:05,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059008133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:05,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:05,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:06:05,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328538156] [2024-11-16 19:06:05,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:05,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:06:05,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:05,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:06:05,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:06:05,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-16 19:06:05,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 19:06:05,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:05,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-16 19:06:05,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:06,102 INFO L124 PetriNetUnfolderBase]: 187/417 cut-off events. [2024-11-16 19:06:06,106 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-16 19:06:06,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 417 events. 187/417 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1940 event pairs, 72 based on Foata normal form. 18/394 useless extension candidates. Maximal degree in co-relation 765. Up to 172 conditions per place. [2024-11-16 19:06:06,112 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 24 selfloop transitions, 3 changer transitions 2/40 dead transitions. [2024-11-16 19:06:06,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 143 flow [2024-11-16 19:06:06,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:06:06,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:06:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-16 19:06:06,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2024-11-16 19:06:06,115 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 64 flow. Second operand 3 states and 70 transitions. [2024-11-16 19:06:06,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 143 flow [2024-11-16 19:06:06,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 143 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:06:06,119 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 84 flow [2024-11-16 19:06:06,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2024-11-16 19:06:06,121 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-11-16 19:06:06,124 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 84 flow [2024-11-16 19:06:06,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 19:06:06,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:06,125 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:06,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:06:06,125 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:06,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash 880227828, now seen corresponding path program 1 times [2024-11-16 19:06:06,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:06,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599376165] [2024-11-16 19:06:06,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:06,224 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 19:06:06,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:06,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599376165] [2024-11-16 19:06:06,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599376165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:06,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:06,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:06:06,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120445078] [2024-11-16 19:06:06,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:06,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:06:06,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:06,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:06:06,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:06:06,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-16 19:06:06,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 19:06:06,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:06,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-16 19:06:06,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:06,329 INFO L124 PetriNetUnfolderBase]: 173/390 cut-off events. [2024-11-16 19:06:06,329 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-11-16 19:06:06,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 390 events. 173/390 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1747 event pairs, 91 based on Foata normal form. 23/392 useless extension candidates. Maximal degree in co-relation 803. Up to 209 conditions per place. [2024-11-16 19:06:06,336 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 21 selfloop transitions, 2 changer transitions 5/39 dead transitions. [2024-11-16 19:06:06,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 39 transitions, 157 flow [2024-11-16 19:06:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:06:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:06:06,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-16 19:06:06,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6052631578947368 [2024-11-16 19:06:06,339 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 84 flow. Second operand 3 states and 69 transitions. [2024-11-16 19:06:06,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 39 transitions, 157 flow [2024-11-16 19:06:06,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 151 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:06:06,344 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 88 flow [2024-11-16 19:06:06,345 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2024-11-16 19:06:06,346 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2024-11-16 19:06:06,347 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 88 flow [2024-11-16 19:06:06,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 19:06:06,348 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:06,348 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 19:06:06,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:06:06,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:06,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:06,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1893882424, now seen corresponding path program 1 times [2024-11-16 19:06:06,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:06,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441002441] [2024-11-16 19:06:06,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:06,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:06,431 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 19:06:06,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:06,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441002441] [2024-11-16 19:06:06,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441002441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:06,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:06,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:06:06,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305949156] [2024-11-16 19:06:06,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:06,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:06:06,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:06,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:06:06,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:06:06,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-16 19:06:06,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:06:06,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:06,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-16 19:06:06,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:06,547 INFO L124 PetriNetUnfolderBase]: 166/409 cut-off events. [2024-11-16 19:06:06,548 INFO L125 PetriNetUnfolderBase]: For 74/77 co-relation queries the response was YES. [2024-11-16 19:06:06,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 409 events. 166/409 cut-off events. For 74/77 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1966 event pairs, 73 based on Foata normal form. 3/387 useless extension candidates. Maximal degree in co-relation 820. Up to 150 conditions per place. [2024-11-16 19:06:06,551 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 25 selfloop transitions, 6 changer transitions 5/48 dead transitions. [2024-11-16 19:06:06,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 199 flow [2024-11-16 19:06:06,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:06:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:06:06,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-16 19:06:06,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5921052631578947 [2024-11-16 19:06:06,553 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 88 flow. Second operand 4 states and 90 transitions. [2024-11-16 19:06:06,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 199 flow [2024-11-16 19:06:06,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:06:06,558 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 132 flow [2024-11-16 19:06:06,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-11-16 19:06:06,559 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 8 predicate places. [2024-11-16 19:06:06,560 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 132 flow [2024-11-16 19:06:06,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:06:06,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:06,561 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 19:06:06,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:06:06,562 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:06,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:06,565 INFO L85 PathProgramCache]: Analyzing trace with hash 235397816, now seen corresponding path program 2 times [2024-11-16 19:06:06,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:06,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471078520] [2024-11-16 19:06:06,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:06,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:06,653 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 19:06:06,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:06,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471078520] [2024-11-16 19:06:06,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471078520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:06,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:06,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:06:06,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437904878] [2024-11-16 19:06:06,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:06,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:06:06,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:06,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:06:06,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:06:06,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-16 19:06:06,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:06:06,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:06,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-16 19:06:06,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:06,761 INFO L124 PetriNetUnfolderBase]: 135/319 cut-off events. [2024-11-16 19:06:06,761 INFO L125 PetriNetUnfolderBase]: For 148/157 co-relation queries the response was YES. [2024-11-16 19:06:06,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 319 events. 135/319 cut-off events. For 148/157 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1329 event pairs, 47 based on Foata normal form. 22/335 useless extension candidates. Maximal degree in co-relation 757. Up to 109 conditions per place. [2024-11-16 19:06:06,763 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-11-16 19:06:06,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 48 transitions, 249 flow [2024-11-16 19:06:06,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:06:06,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:06:06,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-11-16 19:06:06,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5723684210526315 [2024-11-16 19:06:06,765 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 132 flow. Second operand 4 states and 87 transitions. [2024-11-16 19:06:06,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 48 transitions, 249 flow [2024-11-16 19:06:06,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 243 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-16 19:06:06,767 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-11-16 19:06:06,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-11-16 19:06:06,770 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-16 19:06:06,772 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-11-16 19:06:06,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:06:06,776 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-16 19:06:06,777 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-16 19:06:06,777 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-16 19:06:06,777 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-16 19:06:06,777 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-16 19:06:06,778 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-16 19:06:06,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:06:06,779 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-16 19:06:06,787 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:06:06,787 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:06:06,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:06:06 BasicIcfg [2024-11-16 19:06:06,794 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:06:06,794 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:06:06,794 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:06:06,795 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:06:06,795 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:06:05" (3/4) ... [2024-11-16 19:06:06,799 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:06:06,806 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-16 19:06:06,806 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-16 19:06:06,809 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-16 19:06:06,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-16 19:06:06,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-16 19:06:06,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 19:06:06,899 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:06:06,900 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:06:06,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:06:06,902 INFO L158 Benchmark]: Toolchain (without parser) took 2813.64ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 54.4MB in the beginning and 64.2MB in the end (delta: -9.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2024-11-16 19:06:06,902 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:06:06,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.01ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 54.1MB in the beginning and 130.9MB in the end (delta: -76.8MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-11-16 19:06:06,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.22ms. Allocated memory is still 172.0MB. Free memory was 130.9MB in the beginning and 129.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:06:06,903 INFO L158 Benchmark]: Boogie Preprocessor took 34.54ms. Allocated memory is still 172.0MB. Free memory was 129.8MB in the beginning and 127.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:06:06,903 INFO L158 Benchmark]: IcfgBuilder took 416.95ms. Allocated memory is still 172.0MB. Free memory was 127.6MB in the beginning and 109.9MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 19:06:06,904 INFO L158 Benchmark]: TraceAbstraction took 1605.54ms. Allocated memory is still 172.0MB. Free memory was 108.9MB in the beginning and 68.4MB in the end (delta: 40.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-16 19:06:06,904 INFO L158 Benchmark]: Witness Printer took 106.12ms. Allocated memory is still 172.0MB. Free memory was 68.4MB in the beginning and 64.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:06:06,906 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 125.8MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.01ms. Allocated memory was 125.8MB in the beginning and 172.0MB in the end (delta: 46.1MB). Free memory was 54.1MB in the beginning and 130.9MB in the end (delta: -76.8MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.22ms. Allocated memory is still 172.0MB. Free memory was 130.9MB in the beginning and 129.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.54ms. Allocated memory is still 172.0MB. Free memory was 129.8MB in the beginning and 127.6MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 416.95ms. Allocated memory is still 172.0MB. Free memory was 127.6MB in the beginning and 109.9MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1605.54ms. Allocated memory is still 172.0MB. Free memory was 108.9MB in the beginning and 68.4MB in the end (delta: 40.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Witness Printer took 106.12ms. Allocated memory is still 172.0MB. Free memory was 68.4MB in the beginning and 64.2MB 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: 748]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 739]: 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, 59 locations, 6 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: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 240 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 10 mSDtfsCounter, 240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 0.3s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 19:06:06,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE