/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:36:39,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:36:39,113 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 19:36:39,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:36:39,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:36:39,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:36:39,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:36:39,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:36:39,137 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:36:39,138 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:36:39,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:36:39,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:36:39,139 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:36:39,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:36:39,139 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:36:39,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:36:39,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:36:39,139 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:36:39,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:36:39,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:36:39,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:36:39,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:36:39,140 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:36:39,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:36:39,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:36:39,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:36:39,141 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET [2025-04-13 19:36:39,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:36:39,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:36:39,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:36:39,362 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:36:39,364 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:36:39,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-04-13 19:36:40,677 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a6757ed/ed00abd9a29e43ef83d9e78da31308c2/FLAGdd6971a6e [2025-04-13 19:36:40,934 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:36:40,936 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-04-13 19:36:40,950 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a6757ed/ed00abd9a29e43ef83d9e78da31308c2/FLAGdd6971a6e [2025-04-13 19:36:41,728 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a6757ed/ed00abd9a29e43ef83d9e78da31308c2 [2025-04-13 19:36:41,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:36:41,731 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:36:41,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:36:41,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:36:41,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:36:41,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:36:41" (1/1) ... [2025-04-13 19:36:41,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66000ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:41, skipping insertion in model container [2025-04-13 19:36:41,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:36:41" (1/1) ... [2025-04-13 19:36:41,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:36:41,935 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-04-13 19:36:42,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:36:42,080 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:36:42,097 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-04-13 19:36:42,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:36:42,152 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:36:42,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42 WrapperNode [2025-04-13 19:36:42,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:36:42,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:36:42,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:36:42,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:36:42,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,185 INFO L138 Inliner]: procedures = 176, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2025-04-13 19:36:42,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:36:42,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:36:42,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:36:42,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:36:42,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,208 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]. [2025-04-13 19:36:42,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,214 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,214 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:36:42,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:36:42,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:36:42,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:36:42,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (1/1) ... [2025-04-13 19:36:42,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:36:42,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:36:42,249 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) [2025-04-13 19:36:42,253 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 [2025-04-13 19:36:42,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 19:36:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:36:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-13 19:36:42,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-13 19:36:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-13 19:36:42,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-13 19:36:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-13 19:36:42,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-13 19:36:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-04-13 19:36:42,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-04-13 19:36:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:36:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 19:36:42,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:36:42,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:36:42,271 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 19:36:42,353 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:36:42,354 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:36:42,487 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:36:42,488 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:36:42,488 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:36:42,572 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 19:36:42,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:36:42 BoogieIcfgContainer [2025-04-13 19:36:42,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:36:42,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:36:42,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:36:42,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:36:42,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:36:41" (1/3) ... [2025-04-13 19:36:42,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf2c42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:36:42, skipping insertion in model container [2025-04-13 19:36:42,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:42" (2/3) ... [2025-04-13 19:36:42,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf2c42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:36:42, skipping insertion in model container [2025-04-13 19:36:42,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:36:42" (3/3) ... [2025-04-13 19:36:42,581 INFO L128 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-04-13 19:36:42,591 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:36:42,592 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 42 locations, 37 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 19:36:42,592 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:36:42,641 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-13 19:36:42,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 41 transitions, 98 flow [2025-04-13 19:36:42,692 INFO L116 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-04-13 19:36:42,693 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:36:42,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-13 19:36:42,695 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 41 transitions, 98 flow [2025-04-13 19:36:42,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 36 transitions, 84 flow [2025-04-13 19:36:42,701 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:36:42,711 INFO L340 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;@3c34d6c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:36:42,712 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-13 19:36:42,722 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:36:42,722 INFO L116 PetriNetUnfolderBase]: 0/35 cut-off events. [2025-04-13 19:36:42,722 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:36:42,722 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:36:42,723 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:36:42,723 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:36:42,726 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:36:42,730 INFO L85 PathProgramCache]: Analyzing trace with hash 936364550, now seen corresponding path program 1 times [2025-04-13 19:36:42,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:36:42,735 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886531705] [2025-04-13 19:36:42,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:36:42,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:36:42,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 19:36:42,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 19:36:42,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:36:42,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:36:43,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:36:43,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:36:43,103 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886531705] [2025-04-13 19:36:43,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886531705] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:36:43,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:36:43,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 19:36:43,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198272134] [2025-04-13 19:36:43,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:36:43,109 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 19:36:43,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:36:43,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 19:36:43,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 19:36:43,152 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 41 [2025-04-13 19:36:43,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2025-04-13 19:36:43,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:36:43,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 41 [2025-04-13 19:36:43,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:36:43,427 INFO L116 PetriNetUnfolderBase]: 1260/1996 cut-off events. [2025-04-13 19:36:43,427 INFO L117 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-04-13 19:36:43,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3904 conditions, 1996 events. 1260/1996 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 11416 event pairs, 340 based on Foata normal form. 81/2066 useless extension candidates. Maximal degree in co-relation 3892. Up to 936 conditions per place. [2025-04-13 19:36:43,449 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 33 selfloop transitions, 6 changer transitions 1/56 dead transitions. [2025-04-13 19:36:43,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 213 flow [2025-04-13 19:36:43,450 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 19:36:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-13 19:36:43,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2025-04-13 19:36:43,460 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7439024390243902 [2025-04-13 19:36:43,462 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 84 flow. Second operand 4 states and 122 transitions. [2025-04-13 19:36:43,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 213 flow [2025-04-13 19:36:43,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 206 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-13 19:36:43,470 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 122 flow [2025-04-13 19:36:43,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2025-04-13 19:36:43,476 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2025-04-13 19:36:43,476 INFO L485 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 122 flow [2025-04-13 19:36:43,476 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2025-04-13 19:36:43,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:36:43,477 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:36:43,477 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:36:43,477 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:36:43,478 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:36:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1601438660, now seen corresponding path program 1 times [2025-04-13 19:36:43,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:36:43,478 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238433212] [2025-04-13 19:36:43,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:36:43,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:36:43,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-13 19:36:43,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-13 19:36:43,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:36:43,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:36:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:36:43,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:36:43,653 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238433212] [2025-04-13 19:36:43,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238433212] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:36:43,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:36:43,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:36:43,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234676801] [2025-04-13 19:36:43,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:36:43,656 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 19:36:43,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:36:43,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 19:36:43,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 19:36:43,674 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 41 [2025-04-13 19:36:43,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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) [2025-04-13 19:36:43,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:36:43,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 41 [2025-04-13 19:36:43,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:36:43,870 INFO L116 PetriNetUnfolderBase]: 1180/1875 cut-off events. [2025-04-13 19:36:43,870 INFO L117 PetriNetUnfolderBase]: For 638/643 co-relation queries the response was YES. [2025-04-13 19:36:43,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4630 conditions, 1875 events. 1180/1875 cut-off events. For 638/643 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 10326 event pairs, 132 based on Foata normal form. 82/1948 useless extension candidates. Maximal degree in co-relation 4618. Up to 856 conditions per place. [2025-04-13 19:36:43,882 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 42 selfloop transitions, 10 changer transitions 1/69 dead transitions. [2025-04-13 19:36:43,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 69 transitions, 315 flow [2025-04-13 19:36:43,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 19:36:43,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-13 19:36:43,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 155 transitions. [2025-04-13 19:36:43,885 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2025-04-13 19:36:43,885 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 122 flow. Second operand 5 states and 155 transitions. [2025-04-13 19:36:43,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 69 transitions, 315 flow [2025-04-13 19:36:43,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 69 transitions, 304 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-13 19:36:43,887 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 174 flow [2025-04-13 19:36:43,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=174, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2025-04-13 19:36:43,887 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2025-04-13 19:36:43,888 INFO L485 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 174 flow [2025-04-13 19:36:43,888 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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) [2025-04-13 19:36:43,888 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:36:43,888 INFO L206 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] [2025-04-13 19:36:43,888 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 19:36:43,888 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:36:43,888 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:36:43,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1896922050, now seen corresponding path program 1 times [2025-04-13 19:36:43,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:36:43,889 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772422106] [2025-04-13 19:36:43,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:36:43,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:36:43,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-13 19:36:43,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-13 19:36:43,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:36:43,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:36:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:36:44,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:36:44,030 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772422106] [2025-04-13 19:36:44,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772422106] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:36:44,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:36:44,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 19:36:44,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291472836] [2025-04-13 19:36:44,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:36:44,031 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:36:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:36:44,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:36:44,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:36:44,039 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 41 [2025-04-13 19:36:44,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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) [2025-04-13 19:36:44,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:36:44,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 41 [2025-04-13 19:36:44,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:36:44,232 INFO L116 PetriNetUnfolderBase]: 960/1527 cut-off events. [2025-04-13 19:36:44,233 INFO L117 PetriNetUnfolderBase]: For 1498/1508 co-relation queries the response was YES. [2025-04-13 19:36:44,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4340 conditions, 1527 events. 960/1527 cut-off events. For 1498/1508 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7688 event pairs, 36 based on Foata normal form. 76/1594 useless extension candidates. Maximal degree in co-relation 4326. Up to 592 conditions per place. [2025-04-13 19:36:44,243 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 49 selfloop transitions, 14 changer transitions 1/80 dead transitions. [2025-04-13 19:36:44,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 80 transitions, 422 flow [2025-04-13 19:36:44,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 19:36:44,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-13 19:36:44,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2025-04-13 19:36:44,247 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2025-04-13 19:36:44,247 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 174 flow. Second operand 6 states and 186 transitions. [2025-04-13 19:36:44,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 80 transitions, 422 flow [2025-04-13 19:36:44,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 80 transitions, 392 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-04-13 19:36:44,254 INFO L231 Difference]: Finished difference. Result has 57 places, 48 transitions, 224 flow [2025-04-13 19:36:44,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=57, PETRI_TRANSITIONS=48} [2025-04-13 19:36:44,254 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2025-04-13 19:36:44,255 INFO L485 AbstractCegarLoop]: Abstraction has has 57 places, 48 transitions, 224 flow [2025-04-13 19:36:44,255 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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) [2025-04-13 19:36:44,255 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:36:44,255 INFO L206 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] [2025-04-13 19:36:44,255 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 19:36:44,255 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:36:44,256 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:36:44,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1398535304, now seen corresponding path program 1 times [2025-04-13 19:36:44,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:36:44,256 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049406474] [2025-04-13 19:36:44,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:36:44,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:36:44,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-13 19:36:44,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-13 19:36:44,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:36:44,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:36:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:36:44,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:36:44,387 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049406474] [2025-04-13 19:36:44,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049406474] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:36:44,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:36:44,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-13 19:36:44,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220114366] [2025-04-13 19:36:44,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:36:44,387 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-13 19:36:44,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:36:44,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-13 19:36:44,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 19:36:44,401 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 41 [2025-04-13 19:36:44,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 48 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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) [2025-04-13 19:36:44,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:36:44,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 41 [2025-04-13 19:36:44,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:36:44,556 INFO L116 PetriNetUnfolderBase]: 680/1063 cut-off events. [2025-04-13 19:36:44,556 INFO L117 PetriNetUnfolderBase]: For 1916/1926 co-relation queries the response was YES. [2025-04-13 19:36:44,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3397 conditions, 1063 events. 680/1063 cut-off events. For 1916/1926 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4528 event pairs, 16 based on Foata normal form. 52/1106 useless extension candidates. Maximal degree in co-relation 3382. Up to 368 conditions per place. [2025-04-13 19:36:44,562 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 46 selfloop transitions, 18 changer transitions 1/81 dead transitions. [2025-04-13 19:36:44,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 81 transitions, 436 flow [2025-04-13 19:36:44,563 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-13 19:36:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-13 19:36:44,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 207 transitions. [2025-04-13 19:36:44,563 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7212543554006968 [2025-04-13 19:36:44,563 INFO L175 Difference]: Start difference. First operand has 57 places, 48 transitions, 224 flow. Second operand 7 states and 207 transitions. [2025-04-13 19:36:44,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 81 transitions, 436 flow [2025-04-13 19:36:44,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 81 transitions, 390 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-04-13 19:36:44,568 INFO L231 Difference]: Finished difference. Result has 60 places, 48 transitions, 234 flow [2025-04-13 19:36:44,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=234, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2025-04-13 19:36:44,568 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2025-04-13 19:36:44,569 INFO L485 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 234 flow [2025-04-13 19:36:44,569 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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) [2025-04-13 19:36:44,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:36:44,569 INFO L206 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, 1, 1, 1] [2025-04-13 19:36:44,569 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 19:36:44,569 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:36:44,569 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:36:44,569 INFO L85 PathProgramCache]: Analyzing trace with hash -944525093, now seen corresponding path program 1 times [2025-04-13 19:36:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:36:44,570 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322465703] [2025-04-13 19:36:44,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:36:44,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:36:44,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-04-13 19:36:44,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-13 19:36:44,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:36:44,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:36:44,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:36:44,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:36:44,702 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322465703] [2025-04-13 19:36:44,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322465703] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:36:44,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:36:44,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:36:44,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447681801] [2025-04-13 19:36:44,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:36:44,702 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:36:44,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:36:44,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:36:44,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:36:44,713 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 41 [2025-04-13 19:36:44,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2025-04-13 19:36:44,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:36:44,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 41 [2025-04-13 19:36:44,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:36:45,112 INFO L116 PetriNetUnfolderBase]: 3112/5361 cut-off events. [2025-04-13 19:36:45,113 INFO L117 PetriNetUnfolderBase]: For 3219/3359 co-relation queries the response was YES. [2025-04-13 19:36:45,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12959 conditions, 5361 events. 3112/5361 cut-off events. For 3219/3359 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 37952 event pairs, 597 based on Foata normal form. 32/5059 useless extension candidates. Maximal degree in co-relation 12943. Up to 1406 conditions per place. [2025-04-13 19:36:45,147 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 43 selfloop transitions, 9 changer transitions 17/95 dead transitions. [2025-04-13 19:36:45,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 95 transitions, 492 flow [2025-04-13 19:36:45,148 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-13 19:36:45,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-13 19:36:45,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 197 transitions. [2025-04-13 19:36:45,150 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.686411149825784 [2025-04-13 19:36:45,150 INFO L175 Difference]: Start difference. First operand has 60 places, 48 transitions, 234 flow. Second operand 7 states and 197 transitions. [2025-04-13 19:36:45,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 95 transitions, 492 flow [2025-04-13 19:36:45,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 95 transitions, 376 flow, removed 27 selfloop flow, removed 10 redundant places. [2025-04-13 19:36:45,203 INFO L231 Difference]: Finished difference. Result has 62 places, 55 transitions, 210 flow [2025-04-13 19:36:45,203 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=210, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2025-04-13 19:36:45,204 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 13 predicate places. [2025-04-13 19:36:45,204 INFO L485 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 210 flow [2025-04-13 19:36:45,204 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2025-04-13 19:36:45,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:36:45,204 INFO L206 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, 1, 1, 1] [2025-04-13 19:36:45,204 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 19:36:45,204 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:36:45,205 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:36:45,205 INFO L85 PathProgramCache]: Analyzing trace with hash 947391083, now seen corresponding path program 2 times [2025-04-13 19:36:45,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:36:45,205 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627957711] [2025-04-13 19:36:45,205 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 19:36:45,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:36:45,215 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 1 equivalence classes. [2025-04-13 19:36:45,224 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-13 19:36:45,224 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 19:36:45,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:36:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:36:45,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:36:45,359 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627957711] [2025-04-13 19:36:45,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627957711] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:36:45,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:36:45,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 19:36:45,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992386880] [2025-04-13 19:36:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:36:45,359 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:36:45,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:36:45,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:36:45,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:36:45,371 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 41 [2025-04-13 19:36:45,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2025-04-13 19:36:45,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:36:45,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 41 [2025-04-13 19:36:45,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:36:45,877 INFO L116 PetriNetUnfolderBase]: 3745/6529 cut-off events. [2025-04-13 19:36:45,877 INFO L117 PetriNetUnfolderBase]: For 1886/1886 co-relation queries the response was YES. [2025-04-13 19:36:45,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14594 conditions, 6529 events. 3745/6529 cut-off events. For 1886/1886 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 49587 event pairs, 943 based on Foata normal form. 48/5898 useless extension candidates. Maximal degree in co-relation 14577. Up to 1161 conditions per place. [2025-04-13 19:36:45,908 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 27 selfloop transitions, 6 changer transitions 58/117 dead transitions. [2025-04-13 19:36:45,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 117 transitions, 586 flow [2025-04-13 19:36:45,910 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-13 19:36:45,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-13 19:36:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 247 transitions. [2025-04-13 19:36:45,911 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6693766937669376 [2025-04-13 19:36:45,911 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 210 flow. Second operand 9 states and 247 transitions. [2025-04-13 19:36:45,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 117 transitions, 586 flow [2025-04-13 19:36:45,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 117 transitions, 569 flow, removed 6 selfloop flow, removed 3 redundant places. [2025-04-13 19:36:45,915 INFO L231 Difference]: Finished difference. Result has 72 places, 49 transitions, 202 flow [2025-04-13 19:36:45,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=72, PETRI_TRANSITIONS=49} [2025-04-13 19:36:45,916 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 23 predicate places. [2025-04-13 19:36:45,916 INFO L485 AbstractCegarLoop]: Abstraction has has 72 places, 49 transitions, 202 flow [2025-04-13 19:36:45,917 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2025-04-13 19:36:45,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:36:45,917 INFO L206 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, 1, 1, 1] [2025-04-13 19:36:45,917 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-13 19:36:45,917 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:36:45,918 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:36:45,918 INFO L85 PathProgramCache]: Analyzing trace with hash 133002811, now seen corresponding path program 3 times [2025-04-13 19:36:45,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:36:45,918 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752228351] [2025-04-13 19:36:45,918 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 19:36:45,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:36:45,924 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 32 statements into 1 equivalence classes. [2025-04-13 19:36:45,930 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-04-13 19:36:45,930 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 19:36:45,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:36:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:36:46,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:36:46,032 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752228351] [2025-04-13 19:36:46,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752228351] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:36:46,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:36:46,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 19:36:46,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762377012] [2025-04-13 19:36:46,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:36:46,033 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 19:36:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:36:46,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 19:36:46,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-13 19:36:46,042 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 41 [2025-04-13 19:36:46,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 49 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2025-04-13 19:36:46,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:36:46,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 41 [2025-04-13 19:36:46,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:36:46,152 INFO L116 PetriNetUnfolderBase]: 644/1191 cut-off events. [2025-04-13 19:36:46,152 INFO L117 PetriNetUnfolderBase]: For 732/733 co-relation queries the response was YES. [2025-04-13 19:36:46,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2687 conditions, 1191 events. 644/1191 cut-off events. For 732/733 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6861 event pairs, 183 based on Foata normal form. 16/1070 useless extension candidates. Maximal degree in co-relation 2674. Up to 726 conditions per place. [2025-04-13 19:36:46,228 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2025-04-13 19:36:46,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 58 transitions, 281 flow [2025-04-13 19:36:46,228 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 19:36:46,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-13 19:36:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2025-04-13 19:36:46,229 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6585365853658537 [2025-04-13 19:36:46,229 INFO L175 Difference]: Start difference. First operand has 72 places, 49 transitions, 202 flow. Second operand 5 states and 135 transitions. [2025-04-13 19:36:46,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 58 transitions, 281 flow [2025-04-13 19:36:46,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 245 flow, removed 5 selfloop flow, removed 8 redundant places. [2025-04-13 19:36:46,230 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2025-04-13 19:36:46,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2025-04-13 19:36:46,231 INFO L279 CegarLoopForPetriNet]: 49 programPoint places, 13 predicate places. [2025-04-13 19:36:46,231 INFO L485 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2025-04-13 19:36:46,231 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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) [2025-04-13 19:36:46,234 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-04-13 19:36:46,234 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-04-13 19:36:46,234 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-04-13 19:36:46,234 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-04-13 19:36:46,234 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-04-13 19:36:46,235 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-13 19:36:46,235 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2025-04-13 19:36:46,239 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:36:46,239 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:36:46,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:36:46 BasicIcfg [2025-04-13 19:36:46,243 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:36:46,244 INFO L158 Benchmark]: Toolchain (without parser) took 4512.85ms. Allocated memory was 155.2MB in the beginning and 339.7MB in the end (delta: 184.5MB). Free memory was 108.1MB in the beginning and 230.7MB in the end (delta: -122.6MB). Peak memory consumption was 238.7MB. Max. memory is 8.0GB. [2025-04-13 19:36:46,244 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:36:46,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.57ms. Allocated memory is still 155.2MB. Free memory was 108.1MB in the beginning and 84.8MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-13 19:36:46,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.27ms. Allocated memory is still 155.2MB. Free memory was 84.8MB in the beginning and 83.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:36:46,245 INFO L158 Benchmark]: Boogie Preprocessor took 36.87ms. Allocated memory is still 155.2MB. Free memory was 83.1MB in the beginning and 81.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:36:46,245 INFO L158 Benchmark]: RCFGBuilder took 348.65ms. Allocated memory is still 155.2MB. Free memory was 81.5MB in the beginning and 58.8MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-13 19:36:46,245 INFO L158 Benchmark]: TraceAbstraction took 3668.31ms. Allocated memory was 155.2MB in the beginning and 339.7MB in the end (delta: 184.5MB). Free memory was 58.0MB in the beginning and 230.7MB in the end (delta: -172.8MB). Peak memory consumption was 188.3MB. Max. memory is 8.0GB. [2025-04-13 19:36:46,247 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 421.57ms. Allocated memory is still 155.2MB. Free memory was 108.1MB in the beginning and 84.8MB in the end (delta: 23.3MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.27ms. Allocated memory is still 155.2MB. Free memory was 84.8MB in the beginning and 83.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 36.87ms. Allocated memory is still 155.2MB. Free memory was 83.1MB in the beginning and 81.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 348.65ms. Allocated memory is still 155.2MB. Free memory was 81.5MB in the beginning and 58.8MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 3668.31ms. Allocated memory was 155.2MB in the beginning and 339.7MB in the end (delta: 184.5MB). Free memory was 58.0MB in the beginning and 230.7MB in the end (delta: -172.8MB). Peak memory consumption was 188.3MB. Max. memory is 8.0GB. * 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 9 procedures, 72 locations, 67 edges, 5 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: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 391 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 617 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 21 mSDtfsCounter, 617 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=4, InterpolantAutomatonStates: 43, 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, 1.0s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 744 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 19:36:46,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...