./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.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 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:16:05,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:16:05,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:16:05,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:16:05,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:16:05,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:16:05,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:16:05,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:16:05,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:16:05,582 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:16:05,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:16:05,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:16:05,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:16:05,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:16:05,585 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:16:05,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:16:05,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:16:05,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:16:05,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:16:05,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:16:05,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:16:05,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:16:05,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:16:05,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:16:05,590 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:16:05,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:16:05,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:16:05,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:16:05,591 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:16:05,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:16:05,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:16:05,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:16:05,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:16:05,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:16:05,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:16:05,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:16:05,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:16:05,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:16:05,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:16:05,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:16:05,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:16:05,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:16:05,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b [2024-11-16 19:16:05,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:16:05,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:16:05,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:16:05,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:16:05,877 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:16:05,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-16 19:16:07,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:16:07,321 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:16:07,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-16 19:16:07,344 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9af9f6cd/0f8a53f6096f4379b08691745c6da4fb/FLAG4f74f23c5 [2024-11-16 19:16:07,357 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9af9f6cd/0f8a53f6096f4379b08691745c6da4fb [2024-11-16 19:16:07,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:16:07,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:16:07,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:16:07,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:16:07,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:16:07,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d73c456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07, skipping insertion in model container [2024-11-16 19:16:07,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,402 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:16:07,566 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-16 19:16:07,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:16:07,732 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:16:07,746 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-16 19:16:07,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:16:07,827 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:16:07,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07 WrapperNode [2024-11-16 19:16:07,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:16:07,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:16:07,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:16:07,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:16:07,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,866 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-11-16 19:16:07,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:16:07,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:16:07,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:16:07,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:16:07,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,894 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 19:16:07,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,900 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,906 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:16:07,911 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:16:07,911 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:16:07,911 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:16:07,912 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (1/1) ... [2024-11-16 19:16:07,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:16:07,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:16:07,942 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 19:16:07,951 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 19:16:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:16:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:16:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:16:07,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:16:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:16:07,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:16:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-16 19:16:07,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-16 19:16:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:16:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:16:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:16:07,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:16:07,997 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 19:16:08,109 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:16:08,111 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:16:08,212 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:16:08,212 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:16:08,299 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:16:08,299 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:16:08,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:16:08 BoogieIcfgContainer [2024-11-16 19:16:08,300 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:16:08,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:16:08,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:16:08,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:16:08,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:16:07" (1/3) ... [2024-11-16 19:16:08,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5292bf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:16:08, skipping insertion in model container [2024-11-16 19:16:08,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:16:07" (2/3) ... [2024-11-16 19:16:08,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5292bf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:16:08, skipping insertion in model container [2024-11-16 19:16:08,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:16:08" (3/3) ... [2024-11-16 19:16:08,309 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-16 19:16:08,324 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:16:08,324 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:16:08,324 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:16:08,356 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:16:08,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-11-16 19:16:08,409 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-11-16 19:16:08,409 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:16:08,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-16 19:16:08,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-11-16 19:16:08,414 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-11-16 19:16:08,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:16:08,426 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;@7194d1bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:16:08,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 19:16:08,435 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:16:08,435 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-11-16 19:16:08,435 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:16:08,436 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:08,436 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:08,437 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 19:16:08,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:08,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2012977274, now seen corresponding path program 1 times [2024-11-16 19:16:08,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:08,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136541370] [2024-11-16 19:16:08,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:08,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:08,865 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 19:16:08,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:08,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136541370] [2024-11-16 19:16:08,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136541370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:08,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:08,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:16:08,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449001873] [2024-11-16 19:16:08,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:08,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:16:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:08,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:16:08,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:16:08,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-16 19:16:08,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 19:16:08,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:08,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-16 19:16:08,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:09,821 INFO L124 PetriNetUnfolderBase]: 7522/11081 cut-off events. [2024-11-16 19:16:09,822 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-16 19:16:09,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22064 conditions, 11081 events. 7522/11081 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 65890 event pairs, 2205 based on Foata normal form. 330/11408 useless extension candidates. Maximal degree in co-relation 22053. Up to 5242 conditions per place. [2024-11-16 19:16:09,866 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 47 selfloop transitions, 5 changer transitions 61/117 dead transitions. [2024-11-16 19:16:09,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 117 transitions, 475 flow [2024-11-16 19:16:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:16:09,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:16:09,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 164 transitions. [2024-11-16 19:16:09,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6165413533834586 [2024-11-16 19:16:09,878 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 164 transitions. [2024-11-16 19:16:09,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 117 transitions, 475 flow [2024-11-16 19:16:09,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 117 transitions, 470 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 19:16:09,885 INFO L231 Difference]: Finished difference. Result has 50 places, 35 transitions, 119 flow [2024-11-16 19:16:09,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2024-11-16 19:16:09,898 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2024-11-16 19:16:09,898 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 119 flow [2024-11-16 19:16:09,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 19:16:09,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:09,899 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:09,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:16:09,899 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 19:16:09,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:09,899 INFO L85 PathProgramCache]: Analyzing trace with hash -907861247, now seen corresponding path program 1 times [2024-11-16 19:16:09,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:09,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107969320] [2024-11-16 19:16:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:09,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:10,042 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 19:16:10,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:10,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107969320] [2024-11-16 19:16:10,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107969320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:10,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:10,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:16:10,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197253078] [2024-11-16 19:16:10,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:10,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:10,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:10,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:10,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:10,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-16 19:16:10,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 119 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 19:16:10,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:10,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-16 19:16:10,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:10,957 INFO L124 PetriNetUnfolderBase]: 6878/10184 cut-off events. [2024-11-16 19:16:10,957 INFO L125 PetriNetUnfolderBase]: For 4922/4922 co-relation queries the response was YES. [2024-11-16 19:16:10,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24887 conditions, 10184 events. 6878/10184 cut-off events. For 4922/4922 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 58481 event pairs, 744 based on Foata normal form. 260/10429 useless extension candidates. Maximal degree in co-relation 24872. Up to 4333 conditions per place. [2024-11-16 19:16:11,009 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 56 selfloop transitions, 6 changer transitions 74/140 dead transitions. [2024-11-16 19:16:11,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 140 transitions, 680 flow [2024-11-16 19:16:11,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 19:16:11,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 19:16:11,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2024-11-16 19:16:11,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5473684210526316 [2024-11-16 19:16:11,012 INFO L175 Difference]: Start difference. First operand has 50 places, 35 transitions, 119 flow. Second operand 10 states and 208 transitions. [2024-11-16 19:16:11,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 140 transitions, 680 flow [2024-11-16 19:16:11,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 140 transitions, 656 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-16 19:16:11,071 INFO L231 Difference]: Finished difference. Result has 60 places, 36 transitions, 148 flow [2024-11-16 19:16:11,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=148, PETRI_PLACES=60, PETRI_TRANSITIONS=36} [2024-11-16 19:16:11,072 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-11-16 19:16:11,073 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 36 transitions, 148 flow [2024-11-16 19:16:11,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 19:16:11,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:11,073 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:11,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:16:11,073 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 19:16:11,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:11,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1857781381, now seen corresponding path program 1 times [2024-11-16 19:16:11,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:11,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929630438] [2024-11-16 19:16:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:11,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:11,290 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 19:16:11,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:11,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929630438] [2024-11-16 19:16:11,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929630438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:11,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:11,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:16:11,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254020019] [2024-11-16 19:16:11,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:11,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:11,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:11,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:11,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:11,295 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-16 19:16:11,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 36 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 19:16:11,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:11,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-16 19:16:11,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:12,040 INFO L124 PetriNetUnfolderBase]: 6819/10108 cut-off events. [2024-11-16 19:16:12,040 INFO L125 PetriNetUnfolderBase]: For 14449/14449 co-relation queries the response was YES. [2024-11-16 19:16:12,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27369 conditions, 10108 events. 6819/10108 cut-off events. For 14449/14449 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 58730 event pairs, 564 based on Foata normal form. 295/10400 useless extension candidates. Maximal degree in co-relation 27347. Up to 4748 conditions per place. [2024-11-16 19:16:12,079 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 55 selfloop transitions, 7 changer transitions 68/134 dead transitions. [2024-11-16 19:16:12,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 134 transitions, 721 flow [2024-11-16 19:16:12,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 19:16:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 19:16:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 202 transitions. [2024-11-16 19:16:12,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.531578947368421 [2024-11-16 19:16:12,085 INFO L175 Difference]: Start difference. First operand has 60 places, 36 transitions, 148 flow. Second operand 10 states and 202 transitions. [2024-11-16 19:16:12,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 134 transitions, 721 flow [2024-11-16 19:16:12,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 134 transitions, 655 flow, removed 24 selfloop flow, removed 8 redundant places. [2024-11-16 19:16:12,296 INFO L231 Difference]: Finished difference. Result has 62 places, 37 transitions, 163 flow [2024-11-16 19:16:12,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=163, PETRI_PLACES=62, PETRI_TRANSITIONS=37} [2024-11-16 19:16:12,297 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-11-16 19:16:12,297 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 37 transitions, 163 flow [2024-11-16 19:16:12,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 19:16:12,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:12,297 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 19:16:12,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:16:12,298 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 19:16:12,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash 125011522, now seen corresponding path program 1 times [2024-11-16 19:16:12,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:12,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192825076] [2024-11-16 19:16:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:12,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:12,417 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 19:16:12,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:12,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192825076] [2024-11-16 19:16:12,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192825076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:12,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:12,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:16:12,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958515774] [2024-11-16 19:16:12,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:12,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:12,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:12,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:12,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:12,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-16 19:16:12,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 37 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 19:16:12,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:12,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-16 19:16:12,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:13,334 INFO L124 PetriNetUnfolderBase]: 7073/10425 cut-off events. [2024-11-16 19:16:13,334 INFO L125 PetriNetUnfolderBase]: For 16099/16099 co-relation queries the response was YES. [2024-11-16 19:16:13,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28860 conditions, 10425 events. 7073/10425 cut-off events. For 16099/16099 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 60091 event pairs, 650 based on Foata normal form. 250/10674 useless extension candidates. Maximal degree in co-relation 28837. Up to 4096 conditions per place. [2024-11-16 19:16:13,382 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 82 selfloop transitions, 18 changer transitions 90/194 dead transitions. [2024-11-16 19:16:13,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 194 transitions, 1152 flow [2024-11-16 19:16:13,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 19:16:13,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-16 19:16:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 272 transitions. [2024-11-16 19:16:13,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5506072874493927 [2024-11-16 19:16:13,384 INFO L175 Difference]: Start difference. First operand has 62 places, 37 transitions, 163 flow. Second operand 13 states and 272 transitions. [2024-11-16 19:16:13,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 194 transitions, 1152 flow [2024-11-16 19:16:13,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 194 transitions, 1024 flow, removed 41 selfloop flow, removed 8 redundant places. [2024-11-16 19:16:13,462 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 347 flow [2024-11-16 19:16:13,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=347, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2024-11-16 19:16:13,463 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-11-16 19:16:13,464 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 347 flow [2024-11-16 19:16:13,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 19:16:13,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:13,464 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 19:16:13,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:16:13,464 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 19:16:13,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:13,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1291243488, now seen corresponding path program 2 times [2024-11-16 19:16:13,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:13,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237830723] [2024-11-16 19:16:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:13,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:13,615 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 19:16:13,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:13,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237830723] [2024-11-16 19:16:13,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237830723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:13,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:13,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:16:13,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267813016] [2024-11-16 19:16:13,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:13,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:16:13,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:13,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:16:13,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:16:13,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-16 19:16:13,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 347 flow. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 19:16:13,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:13,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-16 19:16:13,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:14,588 INFO L124 PetriNetUnfolderBase]: 9394/13774 cut-off events. [2024-11-16 19:16:14,589 INFO L125 PetriNetUnfolderBase]: For 42525/42525 co-relation queries the response was YES. [2024-11-16 19:16:14,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42893 conditions, 13774 events. 9394/13774 cut-off events. For 42525/42525 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 80440 event pairs, 1113 based on Foata normal form. 270/14038 useless extension candidates. Maximal degree in co-relation 42863. Up to 5012 conditions per place. [2024-11-16 19:16:14,688 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 65 selfloop transitions, 9 changer transitions 76/154 dead transitions. [2024-11-16 19:16:14,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 154 transitions, 1152 flow [2024-11-16 19:16:14,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 19:16:14,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 19:16:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 193 transitions. [2024-11-16 19:16:14,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.564327485380117 [2024-11-16 19:16:14,690 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 347 flow. Second operand 9 states and 193 transitions. [2024-11-16 19:16:14,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 154 transitions, 1152 flow [2024-11-16 19:16:14,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 154 transitions, 1038 flow, removed 57 selfloop flow, removed 6 redundant places. [2024-11-16 19:16:14,883 INFO L231 Difference]: Finished difference. Result has 72 places, 39 transitions, 237 flow [2024-11-16 19:16:14,883 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=237, PETRI_PLACES=72, PETRI_TRANSITIONS=39} [2024-11-16 19:16:14,884 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-11-16 19:16:14,884 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 39 transitions, 237 flow [2024-11-16 19:16:14,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 19:16:14,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:14,885 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] [2024-11-16 19:16:14,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:16:14,885 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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 19:16:14,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:14,885 INFO L85 PathProgramCache]: Analyzing trace with hash -464725701, now seen corresponding path program 1 times [2024-11-16 19:16:14,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:14,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563102364] [2024-11-16 19:16:14,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:14,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:14,979 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 19:16:14,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:14,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563102364] [2024-11-16 19:16:14,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563102364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:14,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:14,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:16:14,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580276778] [2024-11-16 19:16:14,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:14,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:16:14,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:14,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:16:14,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:16:14,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-16 19:16:14,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 39 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 19:16:14,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:14,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-16 19:16:14,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:15,300 INFO L124 PetriNetUnfolderBase]: 3982/6161 cut-off events. [2024-11-16 19:16:15,301 INFO L125 PetriNetUnfolderBase]: For 13507/13507 co-relation queries the response was YES. [2024-11-16 19:16:15,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18037 conditions, 6161 events. 3982/6161 cut-off events. For 13507/13507 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 34213 event pairs, 639 based on Foata normal form. 271/6422 useless extension candidates. Maximal degree in co-relation 18016. Up to 3504 conditions per place. [2024-11-16 19:16:15,327 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 72 selfloop transitions, 5 changer transitions 1/82 dead transitions. [2024-11-16 19:16:15,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 82 transitions, 677 flow [2024-11-16 19:16:15,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:16:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:16:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-11-16 19:16:15,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-16 19:16:15,329 INFO L175 Difference]: Start difference. First operand has 72 places, 39 transitions, 237 flow. Second operand 4 states and 95 transitions. [2024-11-16 19:16:15,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 82 transitions, 677 flow [2024-11-16 19:16:15,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 524 flow, removed 17 selfloop flow, removed 14 redundant places. [2024-11-16 19:16:15,343 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 200 flow [2024-11-16 19:16:15,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2024-11-16 19:16:15,344 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2024-11-16 19:16:15,344 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 200 flow [2024-11-16 19:16:15,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 19:16:15,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:15,345 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] [2024-11-16 19:16:15,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:16:15,346 INFO L396 AbstractCegarLoop]: === Iteration 7 === 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 19:16:15,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 356081360, now seen corresponding path program 1 times [2024-11-16 19:16:15,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:15,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628082158] [2024-11-16 19:16:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:15,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:15,430 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 19:16:15,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:15,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628082158] [2024-11-16 19:16:15,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628082158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:15,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:15,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:16:15,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764652858] [2024-11-16 19:16:15,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:15,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:16:15,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:15,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:16:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:16:15,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-16 19:16:15,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 200 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:16:15,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:15,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-16 19:16:15,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:15,647 INFO L124 PetriNetUnfolderBase]: 2377/3741 cut-off events. [2024-11-16 19:16:15,648 INFO L125 PetriNetUnfolderBase]: For 3457/3457 co-relation queries the response was YES. [2024-11-16 19:16:15,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10448 conditions, 3741 events. 2377/3741 cut-off events. For 3457/3457 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 18773 event pairs, 325 based on Foata normal form. 210/3941 useless extension candidates. Maximal degree in co-relation 10434. Up to 1305 conditions per place. [2024-11-16 19:16:15,661 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 81 selfloop transitions, 8 changer transitions 2/95 dead transitions. [2024-11-16 19:16:15,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 95 transitions, 623 flow [2024-11-16 19:16:15,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:16:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:16:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-16 19:16:15,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6263157894736842 [2024-11-16 19:16:15,663 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 200 flow. Second operand 5 states and 119 transitions. [2024-11-16 19:16:15,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 95 transitions, 623 flow [2024-11-16 19:16:15,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 95 transitions, 603 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-16 19:16:15,667 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 233 flow [2024-11-16 19:16:15,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=233, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2024-11-16 19:16:15,668 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-11-16 19:16:15,668 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 233 flow [2024-11-16 19:16:15,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:16:15,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:15,669 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] [2024-11-16 19:16:15,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:16:15,669 INFO L396 AbstractCegarLoop]: === Iteration 8 === 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 19:16:15,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:15,669 INFO L85 PathProgramCache]: Analyzing trace with hash 438550661, now seen corresponding path program 1 times [2024-11-16 19:16:15,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:15,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922272733] [2024-11-16 19:16:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:15,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:15,737 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 19:16:15,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:15,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922272733] [2024-11-16 19:16:15,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922272733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:15,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:15,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:16:15,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946345372] [2024-11-16 19:16:15,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:15,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:15,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:15,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:15,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:15,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-16 19:16:15,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 45 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 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 19:16:15,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:15,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-16 19:16:15,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:15,918 INFO L124 PetriNetUnfolderBase]: 1420/2230 cut-off events. [2024-11-16 19:16:15,918 INFO L125 PetriNetUnfolderBase]: For 3257/3257 co-relation queries the response was YES. [2024-11-16 19:16:15,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6753 conditions, 2230 events. 1420/2230 cut-off events. For 3257/3257 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10122 event pairs, 248 based on Foata normal form. 92/2312 useless extension candidates. Maximal degree in co-relation 6739. Up to 766 conditions per place. [2024-11-16 19:16:15,926 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 64 selfloop transitions, 11 changer transitions 8/87 dead transitions. [2024-11-16 19:16:15,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 87 transitions, 575 flow [2024-11-16 19:16:15,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:16:15,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:16:15,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2024-11-16 19:16:15,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-11-16 19:16:15,928 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 233 flow. Second operand 6 states and 120 transitions. [2024-11-16 19:16:15,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 87 transitions, 575 flow [2024-11-16 19:16:15,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 87 transitions, 538 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-11-16 19:16:15,937 INFO L231 Difference]: Finished difference. Result has 64 places, 45 transitions, 238 flow [2024-11-16 19:16:15,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=238, PETRI_PLACES=64, PETRI_TRANSITIONS=45} [2024-11-16 19:16:15,938 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2024-11-16 19:16:15,939 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 45 transitions, 238 flow [2024-11-16 19:16:15,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 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 19:16:15,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:15,939 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, 1, 1, 1] [2024-11-16 19:16:15,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 19:16:15,941 INFO L396 AbstractCegarLoop]: === Iteration 9 === 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 19:16:15,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1317111491, now seen corresponding path program 1 times [2024-11-16 19:16:15,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:15,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518085442] [2024-11-16 19:16:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:16,061 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 19:16:16,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:16,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518085442] [2024-11-16 19:16:16,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518085442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:16,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:16,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:16:16,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169666455] [2024-11-16 19:16:16,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:16,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:16,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:16,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:16,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:16,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-16 19:16:16,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 45 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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 19:16:16,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:16,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-16 19:16:16,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:16,270 INFO L124 PetriNetUnfolderBase]: 1544/2423 cut-off events. [2024-11-16 19:16:16,271 INFO L125 PetriNetUnfolderBase]: For 3297/3297 co-relation queries the response was YES. [2024-11-16 19:16:16,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7286 conditions, 2423 events. 1544/2423 cut-off events. For 3297/3297 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10949 event pairs, 376 based on Foata normal form. 8/2429 useless extension candidates. Maximal degree in co-relation 7272. Up to 1201 conditions per place. [2024-11-16 19:16:16,278 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 43 selfloop transitions, 4 changer transitions 30/81 dead transitions. [2024-11-16 19:16:16,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 81 transitions, 548 flow [2024-11-16 19:16:16,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:16:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:16:16,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2024-11-16 19:16:16,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2024-11-16 19:16:16,279 INFO L175 Difference]: Start difference. First operand has 64 places, 45 transitions, 238 flow. Second operand 6 states and 106 transitions. [2024-11-16 19:16:16,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 81 transitions, 548 flow [2024-11-16 19:16:16,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 81 transitions, 427 flow, removed 24 selfloop flow, removed 10 redundant places. [2024-11-16 19:16:16,290 INFO L231 Difference]: Finished difference. Result has 62 places, 38 transitions, 144 flow [2024-11-16 19:16:16,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=62, PETRI_TRANSITIONS=38} [2024-11-16 19:16:16,291 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-11-16 19:16:16,291 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 38 transitions, 144 flow [2024-11-16 19:16:16,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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 19:16:16,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:16,292 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, 1, 1, 1] [2024-11-16 19:16:16,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 19:16:16,292 INFO L396 AbstractCegarLoop]: === Iteration 10 === 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 19:16:16,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:16,292 INFO L85 PathProgramCache]: Analyzing trace with hash -411417131, now seen corresponding path program 2 times [2024-11-16 19:16:16,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:16,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159390699] [2024-11-16 19:16:16,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:16,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:16,388 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 19:16:16,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:16,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159390699] [2024-11-16 19:16:16,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159390699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:16,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:16,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:16:16,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794552770] [2024-11-16 19:16:16,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:16,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:16,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:16,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:16,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-16 19:16:16,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 38 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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 19:16:16,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:16,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-16 19:16:16,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:16,531 INFO L124 PetriNetUnfolderBase]: 506/804 cut-off events. [2024-11-16 19:16:16,531 INFO L125 PetriNetUnfolderBase]: For 332/332 co-relation queries the response was YES. [2024-11-16 19:16:16,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2056 conditions, 804 events. 506/804 cut-off events. For 332/332 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2695 event pairs, 126 based on Foata normal form. 8/812 useless extension candidates. Maximal degree in co-relation 2045. Up to 444 conditions per place. [2024-11-16 19:16:16,533 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-11-16 19:16:16,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 286 flow [2024-11-16 19:16:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:16:16,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:16:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2024-11-16 19:16:16,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37719298245614036 [2024-11-16 19:16:16,534 INFO L175 Difference]: Start difference. First operand has 62 places, 38 transitions, 144 flow. Second operand 6 states and 86 transitions. [2024-11-16 19:16:16,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 286 flow [2024-11-16 19:16:16,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 54 transitions, 250 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-16 19:16:16,536 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-11-16 19:16:16,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2024-11-16 19:16:16,537 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-11-16 19:16:16,538 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-11-16 19:16:16,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 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 19:16:16,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-16 19:16:16,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-16 19:16:16,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-16 19:16:16,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-16 19:16:16,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 19:16:16,548 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:16,551 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:16:16,551 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:16:16,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:16:16 BasicIcfg [2024-11-16 19:16:16,555 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:16:16,556 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:16:16,556 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:16:16,557 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:16:16,557 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:16:08" (3/4) ... [2024-11-16 19:16:16,559 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:16:16,562 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-16 19:16:16,562 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-16 19:16:16,562 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-16 19:16:16,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-16 19:16:16,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-16 19:16:16,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 19:16:16,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-16 19:16:16,630 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:16:16,630 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:16:16,631 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:16:16,631 INFO L158 Benchmark]: Toolchain (without parser) took 9270.16ms. Allocated memory was 159.4MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 84.5MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 122.4MB. Max. memory is 16.1GB. [2024-11-16 19:16:16,631 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:16:16,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.33ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 84.3MB in the beginning and 198.3MB in the end (delta: -114.0MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-11-16 19:16:16,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.39ms. Allocated memory is still 234.9MB. Free memory was 198.3MB in the beginning and 196.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:16:16,632 INFO L158 Benchmark]: Boogie Preprocessor took 42.74ms. Allocated memory is still 234.9MB. Free memory was 196.2MB in the beginning and 195.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:16:16,632 INFO L158 Benchmark]: IcfgBuilder took 389.22ms. Allocated memory is still 234.9MB. Free memory was 194.1MB in the beginning and 173.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 19:16:16,632 INFO L158 Benchmark]: TraceAbstraction took 8253.62ms. Allocated memory was 234.9MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 172.1MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 130.2MB. Max. memory is 16.1GB. [2024-11-16 19:16:16,633 INFO L158 Benchmark]: Witness Printer took 74.84ms. Allocated memory is still 1.9GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:16:16,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.33ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 84.3MB in the beginning and 198.3MB in the end (delta: -114.0MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.39ms. Allocated memory is still 234.9MB. Free memory was 198.3MB in the beginning and 196.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.74ms. Allocated memory is still 234.9MB. Free memory was 196.2MB in the beginning and 195.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 389.22ms. Allocated memory is still 234.9MB. Free memory was 194.1MB in the beginning and 173.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8253.62ms. Allocated memory was 234.9MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 172.1MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 130.2MB. Max. memory is 16.1GB. * Witness Printer took 74.84ms. Allocated memory is still 1.9GB. Free memory was 1.7GB in the beginning and 1.7GB 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: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 62 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: 8.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 855 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 850 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1753 IncrementalHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 3 mSDtfsCounter, 1753 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=4, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 19:16:16,669 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