./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/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 ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_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 58dc011fd2a961d9f4b52b23fa43b2842c59061a7eec6829cf4a27698c4c4b05 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 16:22:30,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 16:22:30,858 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 16:22:30,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 16:22:30,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 16:22:30,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 16:22:30,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 16:22:30,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 16:22:30,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 16:22:30,908 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 16:22:30,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 16:22:30,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 16:22:30,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 16:22:30,911 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 16:22:30,911 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 16:22:30,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 16:22:30,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 16:22:30,912 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 16:22:30,912 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 16:22:30,912 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 16:22:30,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 16:22:30,913 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 16:22:30,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 16:22:30,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 16:22:30,927 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 16:22:30,927 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 16:22:30,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 16:22:30,928 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 16:22:30,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 16:22:30,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 16:22:30,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 16:22:30,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 16:22:30,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:22:30,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 16:22:30,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 16:22:30,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 16:22:30,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 16:22:30,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 16:22:30,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 16:22:30,931 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 16:22:30,931 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 16:22:30,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 16:22:30,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 16:22:30,932 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58dc011fd2a961d9f4b52b23fa43b2842c59061a7eec6829cf4a27698c4c4b05 [2024-06-27 16:22:31,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 16:22:31,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 16:22:31,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 16:22:31,141 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 16:22:31,141 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 16:22:31,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-06-27 16:22:32,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 16:22:32,568 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 16:22:32,569 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-06-27 16:22:32,578 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce6279c58/ecbef31310e343c5a5891b440e216c17/FLAGa8ff91381 [2024-06-27 16:22:32,593 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce6279c58/ecbef31310e343c5a5891b440e216c17 [2024-06-27 16:22:32,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 16:22:32,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 16:22:32,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 16:22:32,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 16:22:32,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 16:22:32,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:32,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253e004b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32, skipping insertion in model container [2024-06-27 16:22:32,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:32,633 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 16:22:32,760 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2024-06-27 16:22:32,869 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:22:32,880 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 16:22:32,894 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2024-06-27 16:22:32,940 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:22:32,972 INFO L206 MainTranslator]: Completed translation [2024-06-27 16:22:32,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32 WrapperNode [2024-06-27 16:22:32,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 16:22:32,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 16:22:32,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 16:22:32,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 16:22:32,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,022 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-06-27 16:22:33,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 16:22:33,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 16:22:33,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 16:22:33,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 16:22:33,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,058 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]. [2024-06-27 16:22:33,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,070 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,075 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 16:22:33,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 16:22:33,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 16:22:33,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 16:22:33,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (1/1) ... [2024-06-27 16:22:33,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:22:33,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 16:22:33,113 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) [2024-06-27 16:22:33,123 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 [2024-06-27 16:22:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 16:22:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 16:22:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 16:22:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 16:22:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 16:22:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 16:22:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 16:22:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 16:22:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 16:22:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 16:22:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 16:22:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 16:22:33,160 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 16:22:33,275 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 16:22:33,276 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 16:22:33,374 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 16:22:33,375 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 16:22:33,427 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 16:22:33,428 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 16:22:33,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:33 BoogieIcfgContainer [2024-06-27 16:22:33,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 16:22:33,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 16:22:33,430 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 16:22:33,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 16:22:33,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 04:22:32" (1/3) ... [2024-06-27 16:22:33,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3c61e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:22:33, skipping insertion in model container [2024-06-27 16:22:33,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:32" (2/3) ... [2024-06-27 16:22:33,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3c61e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:22:33, skipping insertion in model container [2024-06-27 16:22:33,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:33" (3/3) ... [2024-06-27 16:22:33,434 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-06-27 16:22:33,440 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 16:22:33,447 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 16:22:33,448 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-27 16:22:33,448 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 16:22:33,478 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 16:22:33,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-06-27 16:22:33,604 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-06-27 16:22:33,604 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:22:33,608 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 60 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. [2024-06-27 16:22:33,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-06-27 16:22:33,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-06-27 16:22:33,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 16:22:33,638 INFO L357 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, mHoare=true, 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;@18bdaacd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 16:22:33,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-27 16:22:33,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 16:22:33,654 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-06-27 16:22:33,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:22:33,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:33,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:33,656 INFO L420 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)] === [2024-06-27 16:22:33,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:33,661 INFO L85 PathProgramCache]: Analyzing trace with hash 475137413, now seen corresponding path program 1 times [2024-06-27 16:22:33,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:33,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187372128] [2024-06-27 16:22:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:33,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:34,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:34,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187372128] [2024-06-27 16:22:34,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187372128] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:34,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:34,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 16:22:34,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987949433] [2024-06-27 16:22:34,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:34,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 16:22:34,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:34,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 16:22:34,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 16:22:34,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-06-27 16:22:34,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-06-27 16:22:34,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:34,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-06-27 16:22:34,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:34,325 INFO L124 PetriNetUnfolderBase]: 291/591 cut-off events. [2024-06-27 16:22:34,325 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-06-27 16:22:34,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 591 events. 291/591 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3181 event pairs, 58 based on Foata normal form. 27/609 useless extension candidates. Maximal degree in co-relation 1086. Up to 236 conditions per place. [2024-06-27 16:22:34,336 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 25 selfloop transitions, 5 changer transitions 1/47 dead transitions. [2024-06-27 16:22:34,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 47 transitions, 171 flow [2024-06-27 16:22:34,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 16:22:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 16:22:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 113 transitions. [2024-06-27 16:22:34,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.743421052631579 [2024-06-27 16:22:34,348 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 4 states and 113 transitions. [2024-06-27 16:22:34,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 47 transitions, 171 flow [2024-06-27 16:22:34,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 16:22:34,353 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 104 flow [2024-06-27 16:22:34,355 INFO L264 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=4, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-06-27 16:22:34,358 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2024-06-27 16:22:34,359 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 104 flow [2024-06-27 16:22:34,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-06-27 16:22:34,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:34,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:34,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 16:22:34,359 INFO L420 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)] === [2024-06-27 16:22:34,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:34,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1710495303, now seen corresponding path program 1 times [2024-06-27 16:22:34,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:34,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989321675] [2024-06-27 16:22:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:34,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:34,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:34,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989321675] [2024-06-27 16:22:34,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989321675] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:34,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:34,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:22:34,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484796203] [2024-06-27 16:22:34,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:34,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:22:34,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:34,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:22:34,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:22:34,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-06-27 16:22:34,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-06-27 16:22:34,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:34,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-06-27 16:22:34,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:34,636 INFO L124 PetriNetUnfolderBase]: 249/506 cut-off events. [2024-06-27 16:22:34,636 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-06-27 16:22:34,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 506 events. 249/506 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2404 event pairs, 15 based on Foata normal form. 26/525 useless extension candidates. Maximal degree in co-relation 1172. Up to 188 conditions per place. [2024-06-27 16:22:34,640 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 31 selfloop transitions, 8 changer transitions 1/56 dead transitions. [2024-06-27 16:22:34,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 56 transitions, 247 flow [2024-06-27 16:22:34,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 16:22:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 16:22:34,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 142 transitions. [2024-06-27 16:22:34,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7473684210526316 [2024-06-27 16:22:34,646 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 104 flow. Second operand 5 states and 142 transitions. [2024-06-27 16:22:34,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 56 transitions, 247 flow [2024-06-27 16:22:34,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 237 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-27 16:22:34,650 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 144 flow [2024-06-27 16:22:34,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-06-27 16:22:34,652 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2024-06-27 16:22:34,652 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 144 flow [2024-06-27 16:22:34,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-06-27 16:22:34,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:34,653 INFO L208 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] [2024-06-27 16:22:34,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 16:22:34,654 INFO L420 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)] === [2024-06-27 16:22:34,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1203204737, now seen corresponding path program 1 times [2024-06-27 16:22:34,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:34,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941732524] [2024-06-27 16:22:34,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:34,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:34,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:34,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941732524] [2024-06-27 16:22:34,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941732524] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:34,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:34,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 16:22:34,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143321532] [2024-06-27 16:22:34,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:34,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:22:34,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:34,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:22:34,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:22:34,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-06-27 16:22:34,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-06-27 16:22:34,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:34,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-06-27 16:22:34,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:34,952 INFO L124 PetriNetUnfolderBase]: 174/341 cut-off events. [2024-06-27 16:22:34,952 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-06-27 16:22:34,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 940 conditions, 341 events. 174/341 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1243 event pairs, 6 based on Foata normal form. 20/354 useless extension candidates. Maximal degree in co-relation 926. Up to 108 conditions per place. [2024-06-27 16:22:34,955 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 29 selfloop transitions, 11 changer transitions 1/57 dead transitions. [2024-06-27 16:22:34,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 57 transitions, 274 flow [2024-06-27 16:22:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:22:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:22:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 163 transitions. [2024-06-27 16:22:34,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7149122807017544 [2024-06-27 16:22:34,956 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 144 flow. Second operand 6 states and 163 transitions. [2024-06-27 16:22:34,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 57 transitions, 274 flow [2024-06-27 16:22:34,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 57 transitions, 249 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-06-27 16:22:34,962 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 158 flow [2024-06-27 16:22:34,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2024-06-27 16:22:34,963 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-06-27 16:22:34,964 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 158 flow [2024-06-27 16:22:34,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-06-27 16:22:34,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:34,964 INFO L208 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] [2024-06-27 16:22:34,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 16:22:34,964 INFO L420 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)] === [2024-06-27 16:22:34,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:34,965 INFO L85 PathProgramCache]: Analyzing trace with hash -144189763, now seen corresponding path program 1 times [2024-06-27 16:22:34,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:34,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493579534] [2024-06-27 16:22:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:34,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:35,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:35,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493579534] [2024-06-27 16:22:35,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493579534] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:35,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:35,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 16:22:35,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861235418] [2024-06-27 16:22:35,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:35,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:22:35,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:35,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:22:35,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:22:35,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-06-27 16:22:35,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-06-27 16:22:35,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:35,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-06-27 16:22:35,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:35,230 INFO L124 PetriNetUnfolderBase]: 226/499 cut-off events. [2024-06-27 16:22:35,230 INFO L125 PetriNetUnfolderBase]: For 357/365 co-relation queries the response was YES. [2024-06-27 16:22:35,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1219 conditions, 499 events. 226/499 cut-off events. For 357/365 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2394 event pairs, 44 based on Foata normal form. 8/468 useless extension candidates. Maximal degree in co-relation 1204. Up to 145 conditions per place. [2024-06-27 16:22:35,233 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 20 selfloop transitions, 3 changer transitions 12/57 dead transitions. [2024-06-27 16:22:35,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 276 flow [2024-06-27 16:22:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:22:35,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:22:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-06-27 16:22:35,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2024-06-27 16:22:35,234 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 158 flow. Second operand 6 states and 156 transitions. [2024-06-27 16:22:35,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 276 flow [2024-06-27 16:22:35,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 212 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-06-27 16:22:35,237 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 116 flow [2024-06-27 16:22:35,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2024-06-27 16:22:35,238 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-06-27 16:22:35,238 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 116 flow [2024-06-27 16:22:35,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-06-27 16:22:35,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:35,238 INFO L208 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] [2024-06-27 16:22:35,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 16:22:35,238 INFO L420 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)] === [2024-06-27 16:22:35,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:35,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1562215897, now seen corresponding path program 2 times [2024-06-27 16:22:35,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:35,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713856583] [2024-06-27 16:22:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:35,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:35,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:35,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713856583] [2024-06-27 16:22:35,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713856583] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:35,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:35,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 16:22:35,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456073383] [2024-06-27 16:22:35,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:35,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:22:35,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:35,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:22:35,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:22:35,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-06-27 16:22:35,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-06-27 16:22:35,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:35,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-06-27 16:22:35,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:35,471 INFO L124 PetriNetUnfolderBase]: 309/678 cut-off events. [2024-06-27 16:22:35,471 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-06-27 16:22:35,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 678 events. 309/678 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3549 event pairs, 64 based on Foata normal form. 8/636 useless extension candidates. Maximal degree in co-relation 1395. Up to 174 conditions per place. [2024-06-27 16:22:35,475 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 24 selfloop transitions, 5 changer transitions 14/63 dead transitions. [2024-06-27 16:22:35,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 63 transitions, 261 flow [2024-06-27 16:22:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 16:22:35,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 16:22:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions. [2024-06-27 16:22:35,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6390977443609023 [2024-06-27 16:22:35,476 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 116 flow. Second operand 7 states and 170 transitions. [2024-06-27 16:22:35,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 63 transitions, 261 flow [2024-06-27 16:22:35,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 63 transitions, 243 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-06-27 16:22:35,478 INFO L231 Difference]: Finished difference. Result has 55 places, 40 transitions, 137 flow [2024-06-27 16:22:35,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=137, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2024-06-27 16:22:35,480 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2024-06-27 16:22:35,481 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 40 transitions, 137 flow [2024-06-27 16:22:35,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-06-27 16:22:35,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:35,481 INFO L208 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] [2024-06-27 16:22:35,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 16:22:35,482 INFO L420 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)] === [2024-06-27 16:22:35,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1250390765, now seen corresponding path program 3 times [2024-06-27 16:22:35,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:35,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445729442] [2024-06-27 16:22:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:35,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:35,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:35,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:35,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445729442] [2024-06-27 16:22:35,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445729442] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:35,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:35,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:22:35,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708815904] [2024-06-27 16:22:35,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:35,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:22:35,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:35,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:22:35,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:22:35,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-06-27 16:22:35,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 40 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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) [2024-06-27 16:22:35,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:35,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-06-27 16:22:35,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:35,766 INFO L124 PetriNetUnfolderBase]: 310/663 cut-off events. [2024-06-27 16:22:35,766 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-06-27 16:22:35,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1456 conditions, 663 events. 310/663 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3520 event pairs, 154 based on Foata normal form. 8/610 useless extension candidates. Maximal degree in co-relation 1440. Up to 191 conditions per place. [2024-06-27 16:22:35,769 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 20 selfloop transitions, 3 changer transitions 14/57 dead transitions. [2024-06-27 16:22:35,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 57 transitions, 251 flow [2024-06-27 16:22:35,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:22:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:22:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2024-06-27 16:22:35,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2024-06-27 16:22:35,770 INFO L175 Difference]: Start difference. First operand has 55 places, 40 transitions, 137 flow. Second operand 6 states and 144 transitions. [2024-06-27 16:22:35,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 57 transitions, 251 flow [2024-06-27 16:22:35,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 57 transitions, 239 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-06-27 16:22:35,772 INFO L231 Difference]: Finished difference. Result has 56 places, 38 transitions, 130 flow [2024-06-27 16:22:35,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=130, PETRI_PLACES=56, PETRI_TRANSITIONS=38} [2024-06-27 16:22:35,772 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2024-06-27 16:22:35,773 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 38 transitions, 130 flow [2024-06-27 16:22:35,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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) [2024-06-27 16:22:35,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:35,773 INFO L208 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] [2024-06-27 16:22:35,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 16:22:35,774 INFO L420 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)] === [2024-06-27 16:22:35,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:35,774 INFO L85 PathProgramCache]: Analyzing trace with hash 697462325, now seen corresponding path program 4 times [2024-06-27 16:22:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:35,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859087712] [2024-06-27 16:22:35,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:35,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:35,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:35,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:35,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859087712] [2024-06-27 16:22:35,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859087712] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:35,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:35,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:22:35,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12486064] [2024-06-27 16:22:35,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:35,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:22:35,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:35,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:22:35,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:22:35,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-06-27 16:22:35,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 38 transitions, 130 flow. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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) [2024-06-27 16:22:35,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:35,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-06-27 16:22:35,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:35,945 INFO L124 PetriNetUnfolderBase]: 115/253 cut-off events. [2024-06-27 16:22:35,945 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-06-27 16:22:35,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 253 events. 115/253 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 958 event pairs, 34 based on Foata normal form. 8/237 useless extension candidates. Maximal degree in co-relation 553. Up to 84 conditions per place. [2024-06-27 16:22:35,946 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2024-06-27 16:22:35,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 45 transitions, 194 flow [2024-06-27 16:22:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:22:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:22:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2024-06-27 16:22:35,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5921052631578947 [2024-06-27 16:22:35,948 INFO L175 Difference]: Start difference. First operand has 56 places, 38 transitions, 130 flow. Second operand 6 states and 135 transitions. [2024-06-27 16:22:35,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 45 transitions, 194 flow [2024-06-27 16:22:35,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 45 transitions, 172 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-06-27 16:22:35,949 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-06-27 16:22:35,949 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=44, 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=49, PETRI_TRANSITIONS=0} [2024-06-27 16:22:35,949 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2024-06-27 16:22:35,950 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-06-27 16:22:35,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 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) [2024-06-27 16:22:35,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-06-27 16:22:35,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-06-27 16:22:35,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-27 16:22:35,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-27 16:22:35,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 16:22:35,953 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2024-06-27 16:22:35,955 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 16:22:35,956 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 16:22:35,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 04:22:35 BasicIcfg [2024-06-27 16:22:35,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 16:22:35,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-06-27 16:22:35,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-06-27 16:22:35,960 INFO L274 PluginConnector]: Witness Printer initialized [2024-06-27 16:22:35,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:33" (3/4) ... [2024-06-27 16:22:35,962 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-06-27 16:22:35,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-06-27 16:22:35,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-06-27 16:22:35,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-06-27 16:22:35,969 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-06-27 16:22:35,969 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-06-27 16:22:35,969 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-06-27 16:22:35,969 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-06-27 16:22:36,036 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-06-27 16:22:36,036 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-06-27 16:22:36,037 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-06-27 16:22:36,037 INFO L158 Benchmark]: Toolchain (without parser) took 3442.04ms. Allocated memory was 140.5MB in the beginning and 222.3MB in the end (delta: 81.8MB). Free memory was 110.7MB in the beginning and 93.1MB in the end (delta: 17.6MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. [2024-06-27 16:22:36,038 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory was 108.7MB in the beginning and 108.6MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 16:22:36,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.39ms. Allocated memory is still 140.5MB. Free memory was 110.3MB in the beginning and 88.8MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-27 16:22:36,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.85ms. Allocated memory is still 140.5MB. Free memory was 88.8MB in the beginning and 86.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 16:22:36,038 INFO L158 Benchmark]: Boogie Preprocessor took 58.15ms. Allocated memory is still 140.5MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 16:22:36,039 INFO L158 Benchmark]: RCFGBuilder took 346.08ms. Allocated memory is still 140.5MB. Free memory was 84.7MB in the beginning and 65.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-27 16:22:36,039 INFO L158 Benchmark]: TraceAbstraction took 2529.84ms. Allocated memory was 140.5MB in the beginning and 222.3MB in the end (delta: 81.8MB). Free memory was 65.1MB in the beginning and 97.3MB in the end (delta: -32.2MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2024-06-27 16:22:36,039 INFO L158 Benchmark]: Witness Printer took 76.61ms. Allocated memory is still 222.3MB. Free memory was 97.3MB in the beginning and 93.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 16:22:36,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory was 108.7MB in the beginning and 108.6MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.39ms. Allocated memory is still 140.5MB. Free memory was 110.3MB in the beginning and 88.8MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.85ms. Allocated memory is still 140.5MB. Free memory was 88.8MB in the beginning and 86.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.15ms. Allocated memory is still 140.5MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 346.08ms. Allocated memory is still 140.5MB. Free memory was 84.7MB in the beginning and 65.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2529.84ms. Allocated memory was 140.5MB in the beginning and 222.3MB in the end (delta: 81.8MB). Free memory was 65.1MB in the beginning and 97.3MB in the end (delta: -32.2MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. * Witness Printer took 76.61ms. Allocated memory is still 222.3MB. Free memory was 97.3MB in the beginning and 93.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 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: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 310 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 266 mSDsluCounter, 187 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 564 IncrementalHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 33 mSDtfsCounter, 564 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=3, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 870 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-06-27 16:22:36,075 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