./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:31:10,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:31:11,044 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:31:11,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:31:11,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:31:11,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:31:11,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:31:11,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:31:11,091 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:31:11,093 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:31:11,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:31:11,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:31:11,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:31:11,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:31:11,094 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:31:11,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:31:11,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:31:11,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:31:11,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:31:11,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:31:11,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:31:11,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:31:11,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:31:11,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:31:11,102 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:31:11,102 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:31:11,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:31:11,102 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:31:11,103 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:31:11,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:31:11,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:31:11,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:31:11,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:31:11,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:31:11,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:31:11,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:31:11,105 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:31:11,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:31:11,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:31:11,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:31:11,106 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:31:11,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:31:11,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af [2024-11-16 19:31:11,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:31:11,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:31:11,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:31:11,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:31:11,381 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:31:11,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-16 19:31:12,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:31:13,113 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:31:13,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-16 19:31:13,123 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1b71874/05b80c9e29e549508b57298903057d1b/FLAGa95d7eb60 [2024-11-16 19:31:13,137 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab1b71874/05b80c9e29e549508b57298903057d1b [2024-11-16 19:31:13,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:31:13,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:31:13,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:31:13,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:31:13,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:31:13,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ea9866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13, skipping insertion in model container [2024-11-16 19:31:13,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:31:13,408 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c[2525,2538] [2024-11-16 19:31:13,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:31:13,434 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:31:13,462 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c[2525,2538] [2024-11-16 19:31:13,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:31:13,491 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:31:13,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13 WrapperNode [2024-11-16 19:31:13,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:31:13,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:31:13,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:31:13,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:31:13,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,535 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 87 [2024-11-16 19:31:13,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:31:13,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:31:13,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:31:13,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:31:13,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,551 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,578 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-16 19:31:13,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,586 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:31:13,593 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:31:13,593 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:31:13,593 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:31:13,594 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (1/1) ... [2024-11-16 19:31:13,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:31:13,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:31:13,636 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 19:31:13,643 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 19:31:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:31:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-16 19:31:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-16 19:31:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-16 19:31:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-16 19:31:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-16 19:31:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-16 19:31:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:31:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:31:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:31:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:31:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:31:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:31:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:31:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:31:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:31:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:31:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:31:13,702 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 19:31:13,824 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:31:13,827 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:31:14,100 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:31:14,101 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:31:14,291 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:31:14,291 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:31:14,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:31:14 BoogieIcfgContainer [2024-11-16 19:31:14,292 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:31:14,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:31:14,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:31:14,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:31:14,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:31:13" (1/3) ... [2024-11-16 19:31:14,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b892faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:14, skipping insertion in model container [2024-11-16 19:31:14,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:13" (2/3) ... [2024-11-16 19:31:14,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b892faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:14, skipping insertion in model container [2024-11-16 19:31:14,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:31:14" (3/3) ... [2024-11-16 19:31:14,308 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2024-11-16 19:31:14,325 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:31:14,325 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:31:14,326 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:31:14,382 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-16 19:31:14,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 40 transitions, 101 flow [2024-11-16 19:31:14,453 INFO L124 PetriNetUnfolderBase]: 6/37 cut-off events. [2024-11-16 19:31:14,454 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 19:31:14,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 37 events. 6/37 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-16 19:31:14,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 40 transitions, 101 flow [2024-11-16 19:31:14,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 90 flow [2024-11-16 19:31:14,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:31:14,485 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;@daa2bcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:31:14,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 19:31:14,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:31:14,503 INFO L124 PetriNetUnfolderBase]: 6/35 cut-off events. [2024-11-16 19:31:14,503 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 19:31:14,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:31:14,504 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:31:14,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:31:14,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:31:14,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1974353819, now seen corresponding path program 1 times [2024-11-16 19:31:14,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:31:14,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202779571] [2024-11-16 19:31:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:31:14,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:31:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:31:14,770 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 19:31:14,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:31:14,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202779571] [2024-11-16 19:31:14,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202779571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:31:14,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:31:14,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:31:14,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621398439] [2024-11-16 19:31:14,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:31:14,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 19:31:14,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:31:14,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 19:31:14,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 19:31:14,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-11-16 19:31:14,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 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 19:31:14,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:31:14,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-11-16 19:31:14,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:31:15,018 INFO L124 PetriNetUnfolderBase]: 304/505 cut-off events. [2024-11-16 19:31:15,020 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-16 19:31:15,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 505 events. 304/505 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2313 event pairs, 234 based on Foata normal form. 70/546 useless extension candidates. Maximal degree in co-relation 915. Up to 460 conditions per place. [2024-11-16 19:31:15,030 INFO L140 encePairwiseOnDemand]: 37/40 looper letters, 23 selfloop transitions, 0 changer transitions 0/33 dead transitions. [2024-11-16 19:31:15,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 130 flow [2024-11-16 19:31:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 19:31:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 19:31:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 52 transitions. [2024-11-16 19:31:15,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-16 19:31:15,046 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 90 flow. Second operand 2 states and 52 transitions. [2024-11-16 19:31:15,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 130 flow [2024-11-16 19:31:15,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 118 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-16 19:31:15,053 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 72 flow [2024-11-16 19:31:15,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2024-11-16 19:31:15,061 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -5 predicate places. [2024-11-16 19:31:15,062 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 72 flow [2024-11-16 19:31:15,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 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 19:31:15,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:31:15,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:31:15,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:31:15,064 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:31:15,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:31:15,065 INFO L85 PathProgramCache]: Analyzing trace with hash -140233889, now seen corresponding path program 1 times [2024-11-16 19:31:15,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:31:15,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103955900] [2024-11-16 19:31:15,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:31:15,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:31:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:31:15,344 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 19:31:15,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:31:15,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103955900] [2024-11-16 19:31:15,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103955900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:31:15,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:31:15,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:31:15,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689350635] [2024-11-16 19:31:15,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:31:15,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:31:15,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:31:15,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:31:15,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:31:15,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-11-16 19:31:15,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 19:31:15,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:31:15,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-11-16 19:31:15,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:31:15,576 INFO L124 PetriNetUnfolderBase]: 514/884 cut-off events. [2024-11-16 19:31:15,576 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:31:15,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1694 conditions, 884 events. 514/884 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4569 event pairs, 296 based on Foata normal form. 34/883 useless extension candidates. Maximal degree in co-relation 1691. Up to 561 conditions per place. [2024-11-16 19:31:15,591 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 34 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-11-16 19:31:15,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 174 flow [2024-11-16 19:31:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:31:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:31:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-11-16 19:31:15,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5375 [2024-11-16 19:31:15,593 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 72 flow. Second operand 4 states and 86 transitions. [2024-11-16 19:31:15,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 174 flow [2024-11-16 19:31:15,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:31:15,598 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 86 flow [2024-11-16 19:31:15,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-11-16 19:31:15,600 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-16 19:31:15,601 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 86 flow [2024-11-16 19:31:15,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 19:31:15,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:31:15,602 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:31:15,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:31:15,603 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:31:15,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:31:15,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1010669029, now seen corresponding path program 1 times [2024-11-16 19:31:15,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:31:15,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605286709] [2024-11-16 19:31:15,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:31:15,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:31:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:31:15,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 19:31:15,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:31:15,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605286709] [2024-11-16 19:31:15,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605286709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:31:15,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:31:15,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:31:15,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622353465] [2024-11-16 19:31:15,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:31:15,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:31:15,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:31:15,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:31:15,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:31:15,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-11-16 19:31:15,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 19:31:15,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:31:15,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-11-16 19:31:15,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:31:16,025 INFO L124 PetriNetUnfolderBase]: 765/1306 cut-off events. [2024-11-16 19:31:16,026 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2024-11-16 19:31:16,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2760 conditions, 1306 events. 765/1306 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6841 event pairs, 417 based on Foata normal form. 51/1308 useless extension candidates. Maximal degree in co-relation 2755. Up to 823 conditions per place. [2024-11-16 19:31:16,035 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 35 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2024-11-16 19:31:16,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 198 flow [2024-11-16 19:31:16,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:31:16,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:31:16,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-11-16 19:31:16,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.53125 [2024-11-16 19:31:16,037 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 86 flow. Second operand 4 states and 85 transitions. [2024-11-16 19:31:16,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 198 flow [2024-11-16 19:31:16,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:31:16,039 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 96 flow [2024-11-16 19:31:16,040 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-11-16 19:31:16,040 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-11-16 19:31:16,041 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 96 flow [2024-11-16 19:31:16,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 19:31:16,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:31:16,041 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:31:16,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:31:16,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:31:16,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:31:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash 70615525, now seen corresponding path program 1 times [2024-11-16 19:31:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:31:16,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786703894] [2024-11-16 19:31:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:31:16,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:31:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:31:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 19:31:16,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:31:16,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786703894] [2024-11-16 19:31:16,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786703894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:31:16,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:31:16,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:31:16,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898178189] [2024-11-16 19:31:16,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:31:16,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:31:16,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:31:16,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:31:16,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:31:16,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-11-16 19:31:16,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 19:31:16,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:31:16,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-11-16 19:31:16,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:31:16,405 INFO L124 PetriNetUnfolderBase]: 658/1218 cut-off events. [2024-11-16 19:31:16,406 INFO L125 PetriNetUnfolderBase]: For 334/334 co-relation queries the response was YES. [2024-11-16 19:31:16,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2676 conditions, 1218 events. 658/1218 cut-off events. For 334/334 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6645 event pairs, 556 based on Foata normal form. 1/1175 useless extension candidates. Maximal degree in co-relation 2670. Up to 985 conditions per place. [2024-11-16 19:31:16,415 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 25 selfloop transitions, 2 changer transitions 1/37 dead transitions. [2024-11-16 19:31:16,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 37 transitions, 156 flow [2024-11-16 19:31:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:31:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:31:16,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2024-11-16 19:31:16,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46875 [2024-11-16 19:31:16,417 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 96 flow. Second operand 4 states and 75 transitions. [2024-11-16 19:31:16,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 37 transitions, 156 flow [2024-11-16 19:31:16,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:31:16,419 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 106 flow [2024-11-16 19:31:16,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2024-11-16 19:31:16,420 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2024-11-16 19:31:16,422 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 106 flow [2024-11-16 19:31:16,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 19:31:16,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:31:16,423 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:31:16,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:31:16,424 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:31:16,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:31:16,426 INFO L85 PathProgramCache]: Analyzing trace with hash 707269110, now seen corresponding path program 1 times [2024-11-16 19:31:16,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:31:16,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985997111] [2024-11-16 19:31:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:31:16,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:31:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:31:16,836 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 19:31:16,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:31:16,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985997111] [2024-11-16 19:31:16,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985997111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:31:16,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065409807] [2024-11-16 19:31:16,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:31:16,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:31:16,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:31:16,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:31:16,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 19:31:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:31:16,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 19:31:16,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:31:17,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-16 19:31:17,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 19:31:17,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:31:17,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 19:31:17,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 19:31:17,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065409807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 19:31:17,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 19:31:17,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 7] total 15 [2024-11-16 19:31:17,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183475476] [2024-11-16 19:31:17,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 19:31:17,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 19:31:17,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:31:17,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 19:31:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-16 19:31:17,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-11-16 19:31:17,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 106 flow. Second operand has 15 states, 15 states have (on average 17.4) internal successors, (261), 15 states have internal predecessors, (261), 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 19:31:17,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:31:17,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-11-16 19:31:17,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:31:18,293 INFO L124 PetriNetUnfolderBase]: 961/1739 cut-off events. [2024-11-16 19:31:18,293 INFO L125 PetriNetUnfolderBase]: For 265/265 co-relation queries the response was YES. [2024-11-16 19:31:18,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3700 conditions, 1739 events. 961/1739 cut-off events. For 265/265 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9963 event pairs, 41 based on Foata normal form. 2/1721 useless extension candidates. Maximal degree in co-relation 3692. Up to 461 conditions per place. [2024-11-16 19:31:18,299 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2024-11-16 19:31:18,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 122 transitions, 563 flow [2024-11-16 19:31:18,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 19:31:18,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-16 19:31:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 293 transitions. [2024-11-16 19:31:18,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5232142857142857 [2024-11-16 19:31:18,302 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 106 flow. Second operand 14 states and 293 transitions. [2024-11-16 19:31:18,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 122 transitions, 563 flow [2024-11-16 19:31:18,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 122 transitions, 559 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-16 19:31:18,305 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-11-16 19:31:18,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-11-16 19:31:18,306 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 12 predicate places. [2024-11-16 19:31:18,306 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-11-16 19:31:18,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 17.4) internal successors, (261), 15 states have internal predecessors, (261), 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 19:31:18,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-16 19:31:18,311 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-16 19:31:18,311 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-16 19:31:18,312 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-16 19:31:18,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 19:31:18,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:31:18,513 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-16 19:31:18,516 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:31:18,516 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:31:18,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:31:18 BasicIcfg [2024-11-16 19:31:18,521 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:31:18,521 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:31:18,521 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:31:18,521 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:31:18,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:31:14" (3/4) ... [2024-11-16 19:31:18,524 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:31:18,527 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-16 19:31:18,527 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-16 19:31:18,528 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-16 19:31:18,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2024-11-16 19:31:18,538 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2024-11-16 19:31:18,538 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-16 19:31:18,538 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 19:31:18,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:31:18,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:31:18,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:31:18,628 INFO L158 Benchmark]: Toolchain (without parser) took 5483.12ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 126.9MB in the beginning and 125.0MB in the end (delta: 1.9MB). Peak memory consumption was 69.4MB. Max. memory is 16.1GB. [2024-11-16 19:31:18,628 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 184.5MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:31:18,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.29ms. Allocated memory is still 184.5MB. Free memory was 126.9MB in the beginning and 113.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 19:31:18,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.44ms. Allocated memory is still 184.5MB. Free memory was 113.1MB in the beginning and 111.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:31:18,629 INFO L158 Benchmark]: Boogie Preprocessor took 53.99ms. Allocated memory is still 184.5MB. Free memory was 111.4MB in the beginning and 108.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:31:18,630 INFO L158 Benchmark]: IcfgBuilder took 699.13ms. Allocated memory is still 184.5MB. Free memory was 108.9MB in the beginning and 73.6MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-16 19:31:18,630 INFO L158 Benchmark]: TraceAbstraction took 4226.37ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 72.8MB in the beginning and 130.3MB in the end (delta: -57.5MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-16 19:31:18,630 INFO L158 Benchmark]: Witness Printer took 106.12ms. Allocated memory is still 251.7MB. Free memory was 130.3MB in the beginning and 125.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:31:18,632 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 184.5MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.29ms. Allocated memory is still 184.5MB. Free memory was 126.9MB in the beginning and 113.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.44ms. Allocated memory is still 184.5MB. Free memory was 113.1MB in the beginning and 111.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.99ms. Allocated memory is still 184.5MB. Free memory was 111.4MB in the beginning and 108.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 699.13ms. Allocated memory is still 184.5MB. Free memory was 108.9MB in the beginning and 73.6MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4226.37ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 72.8MB in the beginning and 130.3MB in the end (delta: -57.5MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 106.12ms. Allocated memory is still 251.7MB. Free memory was 130.3MB in the beginning and 125.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: 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 7 procedures, 56 locations, 4 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: 4.1s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 280 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 253 mSDsluCounter, 172 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 167 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 681 IncrementalHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 5 mSDtfsCounter, 681 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 28, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 1348 SizeOfPredicates, 11 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 10/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 19:31:18,663 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