./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 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/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-023d838-m [2024-11-10 10:19:03,779 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:19:03,850 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:19:03,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:19:03,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:19:03,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:19:03,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:19:03,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:19:03,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:19:03,890 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:19:03,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:19:03,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:19:03,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:19:03,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:19:03,894 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:19:03,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:19:03,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:19:03,895 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:19:03,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:19:03,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:19:03,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:19:03,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:19:03,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:19:03,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:19:03,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:19:03,901 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:19:03,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:19:03,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:19:03,902 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:19:03,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:19:03,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:19:03,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:19:03,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:19:03,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:19:03,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:19:03,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:19:03,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:19:03,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:19:03,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:19:03,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:19:03,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:19:03,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:19:03,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e0b8e6efb6fc18f3ca2ba094d3acbfc6a07fbc0100e70485e3a3a84ea56105b [2024-11-10 10:19:04,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:19:04,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:19:04,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:19:04,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:19:04,224 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:19:04,225 INFO L431 ainManager$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 [2024-11-10 10:19:05,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:19:06,020 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:19:06,021 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-10 10:19:06,035 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac0aee10b/f65f80b994ba4edfbc7e8440ee86cdd8/FLAGdedbdcfd2 [2024-11-10 10:19:06,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac0aee10b/f65f80b994ba4edfbc7e8440ee86cdd8 [2024-11-10 10:19:06,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:19:06,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:19:06,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:19:06,056 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:19:06,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:19:06,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a933f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06, skipping insertion in model container [2024-11-10 10:19:06,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,105 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:19:06,305 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] [2024-11-10 10:19:06,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:19:06,488 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:19:06,501 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] [2024-11-10 10:19:06,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:19:06,573 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:19:06,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06 WrapperNode [2024-11-10 10:19:06,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:19:06,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:19:06,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:19:06,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:19:06,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,627 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-11-10 10:19:06,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:19:06,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:19:06,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:19:06,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:19:06,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,669 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 10:19:06,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,676 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:19:06,688 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:19:06,688 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:19:06,688 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:19:06,689 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (1/1) ... [2024-11-10 10:19:06,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:19:06,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:19:06,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:19:06,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:19:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:19:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:19:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 10:19:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 10:19:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 10:19:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 10:19:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 10:19:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 10:19:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:19:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:19:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:19:06,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:19:06,786 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:19:06,935 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:19:06,957 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:19:07,112 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:19:07,112 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:19:07,213 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:19:07,213 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:19:07,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:19:07 BoogieIcfgContainer [2024-11-10 10:19:07,215 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:19:07,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:19:07,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:19:07,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:19:07,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:19:06" (1/3) ... [2024-11-10 10:19:07,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5c60d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:19:07, skipping insertion in model container [2024-11-10 10:19:07,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:06" (2/3) ... [2024-11-10 10:19:07,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5c60d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:19:07, skipping insertion in model container [2024-11-10 10:19:07,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:19:07" (3/3) ... [2024-11-10 10:19:07,223 INFO L112 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-10 10:19:07,240 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:19:07,240 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:19:07,241 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:19:07,298 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:19:07,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-11-10 10:19:07,359 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-11-10 10:19:07,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:19:07,364 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. [2024-11-10 10:19:07,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-11-10 10:19:07,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-11-10 10:19:07,381 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:19:07,392 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;@42492ba5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:19:07,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-10 10:19:07,413 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:19:07,413 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-11-10 10:19:07,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:19:07,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:07,415 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:07,416 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)] === [2024-11-10 10:19:07,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:07,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2012977274, now seen corresponding path program 1 times [2024-11-10 10:19:07,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:07,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934614090] [2024-11-10 10:19:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:07,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:08,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:08,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934614090] [2024-11-10 10:19:08,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934614090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:08,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:08,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:19:08,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342955165] [2024-11-10 10:19:08,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:08,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:19:08,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:08,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:19:08,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:19:08,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-10 10:19:08,064 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) [2024-11-10 10:19:08,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:08,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-10 10:19:08,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:09,379 INFO L124 PetriNetUnfolderBase]: 7522/11081 cut-off events. [2024-11-10 10:19:09,381 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-10 10:19:09,411 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. [2024-11-10 10:19:09,457 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 47 selfloop transitions, 5 changer transitions 61/117 dead transitions. [2024-11-10 10:19:09,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 117 transitions, 475 flow [2024-11-10 10:19:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:19:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:19:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 164 transitions. [2024-11-10 10:19:09,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6165413533834586 [2024-11-10 10:19:09,473 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 164 transitions. [2024-11-10 10:19:09,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 117 transitions, 475 flow [2024-11-10 10:19:09,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 117 transitions, 470 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 10:19:09,483 INFO L231 Difference]: Finished difference. Result has 50 places, 35 transitions, 119 flow [2024-11-10 10:19:09,487 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} [2024-11-10 10:19:09,493 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2024-11-10 10:19:09,493 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 119 flow [2024-11-10 10:19:09,493 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) [2024-11-10 10:19:09,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:09,494 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:09,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:19:09,495 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)] === [2024-11-10 10:19:09,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:09,496 INFO L85 PathProgramCache]: Analyzing trace with hash -907861247, now seen corresponding path program 1 times [2024-11-10 10:19:09,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:09,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220719985] [2024-11-10 10:19:09,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:09,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:09,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:09,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:09,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220719985] [2024-11-10 10:19:09,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220719985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:09,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:09,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:19:09,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101747679] [2024-11-10 10:19:09,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:09,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:09,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:09,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:09,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:09,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-10 10:19:09,730 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) [2024-11-10 10:19:09,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:09,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-10 10:19:09,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:10,807 INFO L124 PetriNetUnfolderBase]: 6878/10184 cut-off events. [2024-11-10 10:19:10,808 INFO L125 PetriNetUnfolderBase]: For 4922/4922 co-relation queries the response was YES. [2024-11-10 10:19:10,832 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. [2024-11-10 10:19:10,883 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 56 selfloop transitions, 6 changer transitions 74/140 dead transitions. [2024-11-10 10:19:10,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 140 transitions, 680 flow [2024-11-10 10:19:10,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:19:10,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 10:19:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2024-11-10 10:19:10,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5473684210526316 [2024-11-10 10:19:10,886 INFO L175 Difference]: Start difference. First operand has 50 places, 35 transitions, 119 flow. Second operand 10 states and 208 transitions. [2024-11-10 10:19:10,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 140 transitions, 680 flow [2024-11-10 10:19:10,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 140 transitions, 656 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-10 10:19:10,960 INFO L231 Difference]: Finished difference. Result has 60 places, 36 transitions, 148 flow [2024-11-10 10:19:10,961 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} [2024-11-10 10:19:10,962 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-11-10 10:19:10,962 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 36 transitions, 148 flow [2024-11-10 10:19:10,962 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) [2024-11-10 10:19:10,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:10,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:10,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:19:10,963 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)] === [2024-11-10 10:19:10,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1857781381, now seen corresponding path program 1 times [2024-11-10 10:19:10,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:10,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106288373] [2024-11-10 10:19:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:10,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:11,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:11,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106288373] [2024-11-10 10:19:11,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106288373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:11,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:11,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:19:11,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735493631] [2024-11-10 10:19:11,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:11,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:11,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:11,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:11,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:11,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-10 10:19:11,178 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) [2024-11-10 10:19:11,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:11,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-10 10:19:11,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:12,208 INFO L124 PetriNetUnfolderBase]: 6819/10108 cut-off events. [2024-11-10 10:19:12,208 INFO L125 PetriNetUnfolderBase]: For 14449/14449 co-relation queries the response was YES. [2024-11-10 10:19:12,240 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. [2024-11-10 10:19:12,280 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 55 selfloop transitions, 7 changer transitions 68/134 dead transitions. [2024-11-10 10:19:12,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 134 transitions, 721 flow [2024-11-10 10:19:12,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:19:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 10:19:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 202 transitions. [2024-11-10 10:19:12,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.531578947368421 [2024-11-10 10:19:12,284 INFO L175 Difference]: Start difference. First operand has 60 places, 36 transitions, 148 flow. Second operand 10 states and 202 transitions. [2024-11-10 10:19:12,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 134 transitions, 721 flow [2024-11-10 10:19:12,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 134 transitions, 655 flow, removed 24 selfloop flow, removed 8 redundant places. [2024-11-10 10:19:12,373 INFO L231 Difference]: Finished difference. Result has 62 places, 37 transitions, 163 flow [2024-11-10 10:19:12,374 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} [2024-11-10 10:19:12,375 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-11-10 10:19:12,375 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 37 transitions, 163 flow [2024-11-10 10:19:12,375 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) [2024-11-10 10:19:12,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:12,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:12,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:19:12,376 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)] === [2024-11-10 10:19:12,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:12,377 INFO L85 PathProgramCache]: Analyzing trace with hash 125011522, now seen corresponding path program 1 times [2024-11-10 10:19:12,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:12,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072841588] [2024-11-10 10:19:12,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:12,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:12,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:12,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072841588] [2024-11-10 10:19:12,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072841588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:12,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:12,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:19:12,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491034671] [2024-11-10 10:19:12,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:12,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:12,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:12,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:12,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:12,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-10 10:19:12,523 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) [2024-11-10 10:19:12,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:12,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-10 10:19:12,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:13,701 INFO L124 PetriNetUnfolderBase]: 7073/10425 cut-off events. [2024-11-10 10:19:13,701 INFO L125 PetriNetUnfolderBase]: For 16099/16099 co-relation queries the response was YES. [2024-11-10 10:19:13,728 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. [2024-11-10 10:19:13,760 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 82 selfloop transitions, 18 changer transitions 90/194 dead transitions. [2024-11-10 10:19:13,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 194 transitions, 1152 flow [2024-11-10 10:19:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 10:19:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 10:19:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 272 transitions. [2024-11-10 10:19:13,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5506072874493927 [2024-11-10 10:19:13,762 INFO L175 Difference]: Start difference. First operand has 62 places, 37 transitions, 163 flow. Second operand 13 states and 272 transitions. [2024-11-10 10:19:13,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 194 transitions, 1152 flow [2024-11-10 10:19:13,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 194 transitions, 1024 flow, removed 41 selfloop flow, removed 8 redundant places. [2024-11-10 10:19:13,833 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 347 flow [2024-11-10 10:19:13,833 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} [2024-11-10 10:19:13,834 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-11-10 10:19:13,834 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 347 flow [2024-11-10 10:19:13,834 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) [2024-11-10 10:19:13,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:13,835 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:13,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:19:13,835 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)] === [2024-11-10 10:19:13,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1291243488, now seen corresponding path program 2 times [2024-11-10 10:19:13,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:13,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846735916] [2024-11-10 10:19:13,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:13,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:13,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:13,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846735916] [2024-11-10 10:19:13,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846735916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:13,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:13,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:19:13,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934623697] [2024-11-10 10:19:13,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:13,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:19:13,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:13,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:19:13,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:19:13,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-10 10:19:13,974 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) [2024-11-10 10:19:13,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:13,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-10 10:19:13,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:15,287 INFO L124 PetriNetUnfolderBase]: 9394/13774 cut-off events. [2024-11-10 10:19:15,288 INFO L125 PetriNetUnfolderBase]: For 42525/42525 co-relation queries the response was YES. [2024-11-10 10:19:15,323 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. [2024-11-10 10:19:15,356 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 65 selfloop transitions, 9 changer transitions 76/154 dead transitions. [2024-11-10 10:19:15,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 154 transitions, 1152 flow [2024-11-10 10:19:15,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:19:15,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:19:15,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 193 transitions. [2024-11-10 10:19:15,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.564327485380117 [2024-11-10 10:19:15,359 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 347 flow. Second operand 9 states and 193 transitions. [2024-11-10 10:19:15,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 154 transitions, 1152 flow [2024-11-10 10:19:15,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 154 transitions, 1038 flow, removed 57 selfloop flow, removed 6 redundant places. [2024-11-10 10:19:15,549 INFO L231 Difference]: Finished difference. Result has 72 places, 39 transitions, 237 flow [2024-11-10 10:19:15,549 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} [2024-11-10 10:19:15,551 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-11-10 10:19:15,552 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 39 transitions, 237 flow [2024-11-10 10:19:15,553 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) [2024-11-10 10:19:15,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:15,553 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] [2024-11-10 10:19:15,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:19:15,553 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)] === [2024-11-10 10:19:15,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:15,554 INFO L85 PathProgramCache]: Analyzing trace with hash -464725701, now seen corresponding path program 1 times [2024-11-10 10:19:15,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:15,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809489359] [2024-11-10 10:19:15,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:15,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:15,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:15,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809489359] [2024-11-10 10:19:15,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809489359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:15,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:15,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:19:15,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109874701] [2024-11-10 10:19:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:15,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:19:15,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:15,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:19:15,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:19:15,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-10 10:19:15,666 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) [2024-11-10 10:19:15,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:15,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-10 10:19:15,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:16,164 INFO L124 PetriNetUnfolderBase]: 3982/6161 cut-off events. [2024-11-10 10:19:16,164 INFO L125 PetriNetUnfolderBase]: For 13507/13507 co-relation queries the response was YES. [2024-11-10 10:19:16,175 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. [2024-11-10 10:19:16,194 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 72 selfloop transitions, 5 changer transitions 1/82 dead transitions. [2024-11-10 10:19:16,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 82 transitions, 677 flow [2024-11-10 10:19:16,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:19:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:19:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-11-10 10:19:16,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-10 10:19:16,196 INFO L175 Difference]: Start difference. First operand has 72 places, 39 transitions, 237 flow. Second operand 4 states and 95 transitions. [2024-11-10 10:19:16,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 82 transitions, 677 flow [2024-11-10 10:19:16,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 524 flow, removed 17 selfloop flow, removed 14 redundant places. [2024-11-10 10:19:16,217 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 200 flow [2024-11-10 10:19:16,218 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} [2024-11-10 10:19:16,218 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2024-11-10 10:19:16,219 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 200 flow [2024-11-10 10:19:16,219 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) [2024-11-10 10:19:16,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:16,219 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] [2024-11-10 10:19:16,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 10:19:16,220 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)] === [2024-11-10 10:19:16,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 356081360, now seen corresponding path program 1 times [2024-11-10 10:19:16,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:16,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278930410] [2024-11-10 10:19:16,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:16,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:16,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:16,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278930410] [2024-11-10 10:19:16,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278930410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:16,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:16,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:19:16,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175737452] [2024-11-10 10:19:16,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:16,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:19:16,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:16,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:19:16,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:19:16,332 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-10 10:19:16,332 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) [2024-11-10 10:19:16,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:16,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-10 10:19:16,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:16,671 INFO L124 PetriNetUnfolderBase]: 2377/3741 cut-off events. [2024-11-10 10:19:16,671 INFO L125 PetriNetUnfolderBase]: For 3457/3457 co-relation queries the response was YES. [2024-11-10 10:19:16,679 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. [2024-11-10 10:19:16,689 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 81 selfloop transitions, 8 changer transitions 2/95 dead transitions. [2024-11-10 10:19:16,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 95 transitions, 623 flow [2024-11-10 10:19:16,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:19:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:19:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-10 10:19:16,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6263157894736842 [2024-11-10 10:19:16,693 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 200 flow. Second operand 5 states and 119 transitions. [2024-11-10 10:19:16,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 95 transitions, 623 flow [2024-11-10 10:19:16,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 95 transitions, 603 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-10 10:19:16,700 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 233 flow [2024-11-10 10:19:16,701 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} [2024-11-10 10:19:16,701 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-11-10 10:19:16,701 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 233 flow [2024-11-10 10:19:16,702 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) [2024-11-10 10:19:16,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:16,702 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] [2024-11-10 10:19:16,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 10:19:16,702 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)] === [2024-11-10 10:19:16,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:16,703 INFO L85 PathProgramCache]: Analyzing trace with hash 438550661, now seen corresponding path program 1 times [2024-11-10 10:19:16,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:16,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246943797] [2024-11-10 10:19:16,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:16,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:16,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:16,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246943797] [2024-11-10 10:19:16,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246943797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:16,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:16,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:19:16,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080089033] [2024-11-10 10:19:16,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:16,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:16,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:16,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:16,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:16,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-10 10:19:16,811 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) [2024-11-10 10:19:16,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:16,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-10 10:19:16,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:17,012 INFO L124 PetriNetUnfolderBase]: 1420/2230 cut-off events. [2024-11-10 10:19:17,012 INFO L125 PetriNetUnfolderBase]: For 3257/3257 co-relation queries the response was YES. [2024-11-10 10:19:17,019 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. [2024-11-10 10:19:17,023 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 64 selfloop transitions, 11 changer transitions 8/87 dead transitions. [2024-11-10 10:19:17,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 87 transitions, 575 flow [2024-11-10 10:19:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:19:17,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:19:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2024-11-10 10:19:17,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-11-10 10:19:17,025 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 233 flow. Second operand 6 states and 120 transitions. [2024-11-10 10:19:17,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 87 transitions, 575 flow [2024-11-10 10:19:17,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 87 transitions, 538 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-11-10 10:19:17,037 INFO L231 Difference]: Finished difference. Result has 64 places, 45 transitions, 238 flow [2024-11-10 10:19:17,037 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} [2024-11-10 10:19:17,038 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2024-11-10 10:19:17,038 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 45 transitions, 238 flow [2024-11-10 10:19:17,038 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) [2024-11-10 10:19:17,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:17,039 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] [2024-11-10 10:19:17,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 10:19:17,039 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)] === [2024-11-10 10:19:17,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:17,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1317111491, now seen corresponding path program 1 times [2024-11-10 10:19:17,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:17,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141816187] [2024-11-10 10:19:17,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:17,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:17,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:17,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141816187] [2024-11-10 10:19:17,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141816187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:17,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:17,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:19:17,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119011128] [2024-11-10 10:19:17,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:17,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:17,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:17,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:17,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:17,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-10 10:19:17,161 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) [2024-11-10 10:19:17,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:17,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-10 10:19:17,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:17,414 INFO L124 PetriNetUnfolderBase]: 1544/2423 cut-off events. [2024-11-10 10:19:17,415 INFO L125 PetriNetUnfolderBase]: For 3297/3297 co-relation queries the response was YES. [2024-11-10 10:19:17,421 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. [2024-11-10 10:19:17,425 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 43 selfloop transitions, 4 changer transitions 30/81 dead transitions. [2024-11-10 10:19:17,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 81 transitions, 548 flow [2024-11-10 10:19:17,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:19:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:19:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2024-11-10 10:19:17,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2024-11-10 10:19:17,427 INFO L175 Difference]: Start difference. First operand has 64 places, 45 transitions, 238 flow. Second operand 6 states and 106 transitions. [2024-11-10 10:19:17,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 81 transitions, 548 flow [2024-11-10 10:19:17,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 81 transitions, 427 flow, removed 24 selfloop flow, removed 10 redundant places. [2024-11-10 10:19:17,439 INFO L231 Difference]: Finished difference. Result has 62 places, 38 transitions, 144 flow [2024-11-10 10:19:17,440 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} [2024-11-10 10:19:17,440 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-11-10 10:19:17,440 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 38 transitions, 144 flow [2024-11-10 10:19:17,441 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) [2024-11-10 10:19:17,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:17,441 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] [2024-11-10 10:19:17,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 10:19:17,441 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)] === [2024-11-10 10:19:17,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:17,442 INFO L85 PathProgramCache]: Analyzing trace with hash -411417131, now seen corresponding path program 2 times [2024-11-10 10:19:17,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:17,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532798982] [2024-11-10 10:19:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:17,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:17,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:17,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:17,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532798982] [2024-11-10 10:19:17,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532798982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:17,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:17,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:19:17,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310888984] [2024-11-10 10:19:17,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:17,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:17,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:17,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:17,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:17,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2024-11-10 10:19:17,586 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) [2024-11-10 10:19:17,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:17,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2024-11-10 10:19:17,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:17,754 INFO L124 PetriNetUnfolderBase]: 506/804 cut-off events. [2024-11-10 10:19:17,755 INFO L125 PetriNetUnfolderBase]: For 332/332 co-relation queries the response was YES. [2024-11-10 10:19:17,756 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. [2024-11-10 10:19:17,758 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-11-10 10:19:17,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 286 flow [2024-11-10 10:19:17,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:19:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:19:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2024-11-10 10:19:17,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37719298245614036 [2024-11-10 10:19:17,759 INFO L175 Difference]: Start difference. First operand has 62 places, 38 transitions, 144 flow. Second operand 6 states and 86 transitions. [2024-11-10 10:19:17,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 286 flow [2024-11-10 10:19:17,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 54 transitions, 250 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-10 10:19:17,761 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-11-10 10:19:17,762 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} [2024-11-10 10:19:17,762 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-11-10 10:19:17,763 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-11-10 10:19:17,763 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) [2024-11-10 10:19:17,766 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-10 10:19:17,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-10 10:19:17,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-10 10:19:17,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-10 10:19:17,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 10:19:17,770 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:17,778 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 10:19:17,778 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 10:19:17,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:19:17 BasicIcfg [2024-11-10 10:19:17,788 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 10:19:17,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 10:19:17,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 10:19:17,793 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 10:19:17,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:19:07" (3/4) ... [2024-11-10 10:19:17,800 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 10:19:17,805 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-10 10:19:17,805 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-10 10:19:17,806 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-10 10:19:17,809 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-10 10:19:17,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-10 10:19:17,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-10 10:19:17,810 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 10:19:17,899 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 10:19:17,900 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 10:19:17,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 10:19:17,901 INFO L158 Benchmark]: Toolchain (without parser) took 11845.91ms. Allocated memory was 161.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 124.5MB in the beginning and 788.5MB in the end (delta: -664.0MB). Peak memory consumption was 597.4MB. Max. memory is 16.1GB. [2024-11-10 10:19:17,901 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 10:19:17,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.03ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 101.5MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 10:19:17,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.91ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 99.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:19:17,902 INFO L158 Benchmark]: Boogie Preprocessor took 58.66ms. Allocated memory is still 161.5MB. Free memory was 99.4MB in the beginning and 97.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:19:17,902 INFO L158 Benchmark]: IcfgBuilder took 527.56ms. Allocated memory is still 161.5MB. Free memory was 97.3MB in the beginning and 114.0MB in the end (delta: -16.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 10:19:17,902 INFO L158 Benchmark]: TraceAbstraction took 10570.90ms. Allocated memory was 161.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 113.9MB in the beginning and 792.7MB in the end (delta: -678.8MB). Peak memory consumption was 585.8MB. Max. memory is 16.1GB. [2024-11-10 10:19:17,903 INFO L158 Benchmark]: Witness Printer took 107.42ms. Allocated memory is still 1.4GB. Free memory was 792.7MB in the beginning and 788.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:19:17,904 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.03ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 101.5MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.91ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 99.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.66ms. Allocated memory is still 161.5MB. Free memory was 99.4MB in the beginning and 97.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 527.56ms. Allocated memory is still 161.5MB. Free memory was 97.3MB in the beginning and 114.0MB in the end (delta: -16.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10570.90ms. Allocated memory was 161.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 113.9MB in the beginning and 792.7MB in the end (delta: -678.8MB). Peak memory consumption was 585.8MB. Max. memory is 16.1GB. * Witness Printer took 107.42ms. Allocated memory is still 1.4GB. Free memory was 792.7MB in the beginning and 788.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 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: 10.4s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 855 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 850 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 1.3s 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, 0.6s 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, 1.6s 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! [2024-11-10 10:19:17,938 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