/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_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis FINITE_AUTOMATA --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/weaver/chl-node-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 22:16:52,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 22:16:52,501 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 22:16:52,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 22:16:52,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 22:16:52,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 22:16:52,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 22:16:52,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 22:16:52,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 22:16:52,530 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 22:16:52,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 22:16:52,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 22:16:52,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 22:16:52,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 22:16:52,531 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 22:16:52,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 22:16:52,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 22:16:52,531 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 22:16:52,532 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 22:16:52,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 22:16:52,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 22:16:52,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 22:16:52,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 22:16:52,533 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 22:16:52,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 22:16:52,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 22:16:52,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 22:16:52,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 22:16:52,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 22:16:52,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 22:16:52,533 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 -> FINITE_AUTOMATA Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-13 22:16:52,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 22:16:52,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 22:16:52,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 22:16:52,764 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 22:16:52,764 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 22:16:52,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-trans.wvr.c [2025-04-13 22:16:54,043 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5abcd2ff/4055a71a95a24e4e8f0053c509fa65f4/FLAG5738c62b8 [2025-04-13 22:16:54,227 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 22:16:54,228 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c [2025-04-13 22:16:54,238 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5abcd2ff/4055a71a95a24e4e8f0053c509fa65f4/FLAG5738c62b8 [2025-04-13 22:16:55,094 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5abcd2ff/4055a71a95a24e4e8f0053c509fa65f4 [2025-04-13 22:16:55,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 22:16:55,097 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 22:16:55,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 22:16:55,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 22:16:55,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 22:16:55,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329bb604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55, skipping insertion in model container [2025-04-13 22:16:55,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 22:16:55,288 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c[3984,3997] [2025-04-13 22:16:55,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 22:16:55,320 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 22:16:55,359 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-trans.wvr.c[3984,3997] [2025-04-13 22:16:55,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 22:16:55,391 INFO L204 MainTranslator]: Completed translation [2025-04-13 22:16:55,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55 WrapperNode [2025-04-13 22:16:55,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 22:16:55,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 22:16:55,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 22:16:55,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 22:16:55,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,443 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 406 [2025-04-13 22:16:55,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 22:16:55,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 22:16:55,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 22:16:55,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 22:16:55,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,454 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,480 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 9, 15]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2025-04-13 22:16:55,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,495 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 22:16:55,505 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-13 22:16:55,505 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-13 22:16:55,505 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-13 22:16:55,506 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (1/1) ... [2025-04-13 22:16:55,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 22:16:55,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 22:16:55,532 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 22:16:55,533 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 22:16:55,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 22:16:55,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 22:16:55,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 22:16:55,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 22:16:55,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-13 22:16:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-13 22:16:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-13 22:16:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 22:16:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 22:16:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 22:16:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 22:16:55,553 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 22:16:55,655 INFO L256 CfgBuilder]: Building ICFG [2025-04-13 22:16:55,657 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 22:16:56,097 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 22:16:56,098 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 22:16:56,098 INFO L318 CfgBuilder]: Performing block encoding [2025-04-13 22:16:56,553 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 22:16:56,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 10:16:56 BoogieIcfgContainer [2025-04-13 22:16:56,553 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-13 22:16:56,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 22:16:56,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 22:16:56,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 22:16:56,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 10:16:55" (1/3) ... [2025-04-13 22:16:56,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54492293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 10:16:56, skipping insertion in model container [2025-04-13 22:16:56,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 10:16:55" (2/3) ... [2025-04-13 22:16:56,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54492293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 10:16:56, skipping insertion in model container [2025-04-13 22:16:56,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 10:16:56" (3/3) ... [2025-04-13 22:16:56,560 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2025-04-13 22:16:56,571 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 22:16:56,572 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-node-trans.wvr.c that has 4 procedures, 25 locations, 27 edges, 1 initial locations, 6 loop locations, and 1 error locations. [2025-04-13 22:16:56,573 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 22:16:56,631 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-13 22:16:56,654 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions, 81 flow [2025-04-13 22:16:56,664 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 43 states have internal predecessors, (81), 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 22:16:56,680 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 22:16:56,691 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=FINITE_AUTOMATA, 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;@1e1f1b03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 22:16:56,691 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-13 22:16:56,692 INFO L278 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 43 states have internal predecessors, (81), 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 22:16:56,697 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-04-13 22:16:56,697 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:16:56,697 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 22:16:56,698 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 1 more)] === [2025-04-13 22:16:56,702 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:16:56,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2055031196, now seen corresponding path program 1 times [2025-04-13 22:16:56,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:16:56,708 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144823625] [2025-04-13 22:16:56,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 22:16:56,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:16:56,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-13 22:16:56,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-13 22:16:56,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 22:16:56,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:16:57,189 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 22:16:57,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:16:57,190 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144823625] [2025-04-13 22:16:57,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144823625] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:16:57,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:16:57,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 22:16:57,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207946054] [2025-04-13 22:16:57,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:16:57,194 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 22:16:57,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:16:57,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 22:16:57,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 22:16:57,209 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8837209302325582) internal successors, (81), 43 states have internal predecessors, (81), 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) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 22:16:57,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:16:57,275 INFO L93 Difference]: Finished difference Result 87 states and 161 transitions. [2025-04-13 22:16:57,277 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 22:16:57,278 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) Word has length 20 [2025-04-13 22:16:57,278 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:16:57,282 INFO L225 Difference]: With dead ends: 87 [2025-04-13 22:16:57,282 INFO L226 Difference]: Without dead ends: 45 [2025-04-13 22:16:57,284 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 22:16:57,287 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 22:16:57,287 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 22:16:57,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-04-13 22:16:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2025-04-13 22:16:57,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 44 states have internal predecessors, (82), 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 22:16:57,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 82 transitions. [2025-04-13 22:16:57,312 INFO L79 Accepts]: Start accepts. Automaton has 45 states and 82 transitions. Word has length 20 [2025-04-13 22:16:57,312 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:16:57,312 INFO L485 AbstractCegarLoop]: Abstraction has 45 states and 82 transitions. [2025-04-13 22:16:57,314 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 22:16:57,314 INFO L278 IsEmpty]: Start isEmpty. Operand 45 states and 82 transitions. [2025-04-13 22:16:57,314 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-04-13 22:16:57,314 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:16:57,314 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 22:16:57,314 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 22:16:57,315 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 1 more)] === [2025-04-13 22:16:57,315 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:16:57,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1970717467, now seen corresponding path program 1 times [2025-04-13 22:16:57,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:16:57,316 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20321226] [2025-04-13 22:16:57,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 22:16:57,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:16:57,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-13 22:16:57,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-13 22:16:57,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 22:16:57,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:16:57,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-13 22:16:57,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:16:57,549 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20321226] [2025-04-13 22:16:57,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20321226] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:16:57,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:16:57,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 22:16:57,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610408381] [2025-04-13 22:16:57,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:16:57,550 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 22:16:57,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:16:57,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 22:16:57,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 22:16:57,551 INFO L87 Difference]: Start difference. First operand 45 states and 82 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 22:16:57,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:16:57,604 INFO L93 Difference]: Finished difference Result 87 states and 160 transitions. [2025-04-13 22:16:57,604 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 22:16:57,605 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) Word has length 21 [2025-04-13 22:16:57,605 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:16:57,605 INFO L225 Difference]: With dead ends: 87 [2025-04-13 22:16:57,605 INFO L226 Difference]: Without dead ends: 46 [2025-04-13 22:16:57,605 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 22:16:57,606 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 22:16:57,606 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 22:16:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-04-13 22:16:57,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-04-13 22:16:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.8444444444444446) internal successors, (83), 45 states have internal predecessors, (83), 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 22:16:57,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 83 transitions. [2025-04-13 22:16:57,609 INFO L79 Accepts]: Start accepts. Automaton has 46 states and 83 transitions. Word has length 21 [2025-04-13 22:16:57,609 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:16:57,609 INFO L485 AbstractCegarLoop]: Abstraction has 46 states and 83 transitions. [2025-04-13 22:16:57,610 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 22:16:57,610 INFO L278 IsEmpty]: Start isEmpty. Operand 46 states and 83 transitions. [2025-04-13 22:16:57,610 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-04-13 22:16:57,610 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:16:57,610 INFO L218 NwaCegarLoop]: 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 22:16:57,610 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 22:16:57,610 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 1 more)] === [2025-04-13 22:16:57,611 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:16:57,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1851834731, now seen corresponding path program 1 times [2025-04-13 22:16:57,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:16:57,611 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743483883] [2025-04-13 22:16:57,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 22:16:57,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:16:57,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-13 22:16:57,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-13 22:16:57,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 22:16:57,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:16:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-13 22:16:57,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:16:57,768 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743483883] [2025-04-13 22:16:57,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743483883] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:16:57,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:16:57,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 22:16:57,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348743840] [2025-04-13 22:16:57,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:16:57,769 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 22:16:57,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:16:57,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 22:16:57,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 22:16:57,769 INFO L87 Difference]: Start difference. First operand 46 states and 83 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 22:16:57,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:16:57,830 INFO L93 Difference]: Finished difference Result 87 states and 159 transitions. [2025-04-13 22:16:57,830 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 22:16:57,830 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 22 [2025-04-13 22:16:57,830 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:16:57,831 INFO L225 Difference]: With dead ends: 87 [2025-04-13 22:16:57,831 INFO L226 Difference]: Without dead ends: 47 [2025-04-13 22:16:57,831 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:16:57,832 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 22:16:57,832 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 22:16:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-04-13 22:16:57,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2025-04-13 22:16:57,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.826086956521739) internal successors, (84), 46 states have internal predecessors, (84), 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 22:16:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 84 transitions. [2025-04-13 22:16:57,838 INFO L79 Accepts]: Start accepts. Automaton has 47 states and 84 transitions. Word has length 22 [2025-04-13 22:16:57,839 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:16:57,839 INFO L485 AbstractCegarLoop]: Abstraction has 47 states and 84 transitions. [2025-04-13 22:16:57,839 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 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 22:16:57,839 INFO L278 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2025-04-13 22:16:57,839 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-04-13 22:16:57,839 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:16:57,839 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:16:57,839 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 22:16:57,841 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 1 more)] === [2025-04-13 22:16:57,841 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:16:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2079197546, now seen corresponding path program 1 times [2025-04-13 22:16:57,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:16:57,841 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929219293] [2025-04-13 22:16:57,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 22:16:57,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:16:57,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-13 22:16:57,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-13 22:16:57,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 22:16:57,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:16:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-13 22:16:58,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:16:58,012 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929219293] [2025-04-13 22:16:58,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929219293] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:16:58,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:16:58,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 22:16:58,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357544890] [2025-04-13 22:16:58,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:16:58,013 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 22:16:58,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:16:58,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 22:16:58,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 22:16:58,013 INFO L87 Difference]: Start difference. First operand 47 states and 84 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 22:16:58,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:16:58,067 INFO L93 Difference]: Finished difference Result 87 states and 158 transitions. [2025-04-13 22:16:58,067 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 22:16:58,067 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) Word has length 23 [2025-04-13 22:16:58,067 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:16:58,068 INFO L225 Difference]: With dead ends: 87 [2025-04-13 22:16:58,068 INFO L226 Difference]: Without dead ends: 48 [2025-04-13 22:16:58,068 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 22:16:58,068 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 22:16:58,068 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 22:16:58,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2025-04-13 22:16:58,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2025-04-13 22:16:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.8085106382978724) internal successors, (85), 47 states have internal predecessors, (85), 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 22:16:58,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2025-04-13 22:16:58,076 INFO L79 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 23 [2025-04-13 22:16:58,076 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:16:58,076 INFO L485 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2025-04-13 22:16:58,076 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 22:16:58,076 INFO L278 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2025-04-13 22:16:58,076 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-04-13 22:16:58,076 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:16:58,076 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:16:58,076 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 22:16:58,076 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 1 more)] === [2025-04-13 22:16:58,077 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:16:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash -651349285, now seen corresponding path program 1 times [2025-04-13 22:16:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:16:58,077 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298075239] [2025-04-13 22:16:58,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 22:16:58,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:16:58,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-13 22:16:58,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-13 22:16:58,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 22:16:58,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:16:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-13 22:16:58,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:16:58,206 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298075239] [2025-04-13 22:16:58,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298075239] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:16:58,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:16:58,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 22:16:58,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413541136] [2025-04-13 22:16:58,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:16:58,207 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 22:16:58,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:16:58,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 22:16:58,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 22:16:58,208 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 22:16:58,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:16:58,283 INFO L93 Difference]: Finished difference Result 87 states and 157 transitions. [2025-04-13 22:16:58,283 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 22:16:58,283 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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) Word has length 24 [2025-04-13 22:16:58,283 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:16:58,284 INFO L225 Difference]: With dead ends: 87 [2025-04-13 22:16:58,284 INFO L226 Difference]: Without dead ends: 49 [2025-04-13 22:16:58,284 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:16:58,284 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 22:16:58,285 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 22:16:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2025-04-13 22:16:58,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2025-04-13 22:16:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.7916666666666667) internal successors, (86), 48 states have internal predecessors, (86), 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 22:16:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 86 transitions. [2025-04-13 22:16:58,292 INFO L79 Accepts]: Start accepts. Automaton has 49 states and 86 transitions. Word has length 24 [2025-04-13 22:16:58,292 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:16:58,292 INFO L485 AbstractCegarLoop]: Abstraction has 49 states and 86 transitions. [2025-04-13 22:16:58,292 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 22:16:58,292 INFO L278 IsEmpty]: Start isEmpty. Operand 49 states and 86 transitions. [2025-04-13 22:16:58,292 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-04-13 22:16:58,292 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:16:58,292 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:16:58,293 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 22:16:58,293 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 1 more)] === [2025-04-13 22:16:58,293 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:16:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1594195783, now seen corresponding path program 1 times [2025-04-13 22:16:58,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:16:58,293 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144177391] [2025-04-13 22:16:58,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 22:16:58,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:16:58,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-13 22:16:58,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-13 22:16:58,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 22:16:58,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:16:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-04-13 22:16:58,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:16:58,441 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144177391] [2025-04-13 22:16:58,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144177391] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:16:58,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:16:58,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 22:16:58,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963749533] [2025-04-13 22:16:58,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:16:58,442 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 22:16:58,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:16:58,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 22:16:58,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 22:16:58,442 INFO L87 Difference]: Start difference. First operand 49 states and 86 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 22:16:58,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:16:58,497 INFO L93 Difference]: Finished difference Result 87 states and 156 transitions. [2025-04-13 22:16:58,497 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 22:16:58,497 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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) Word has length 25 [2025-04-13 22:16:58,497 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:16:58,498 INFO L225 Difference]: With dead ends: 87 [2025-04-13 22:16:58,498 INFO L226 Difference]: Without dead ends: 50 [2025-04-13 22:16:58,498 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:16:58,499 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 22:16:58,499 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 22:16:58,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-04-13 22:16:58,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2025-04-13 22:16:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.7755102040816326) internal successors, (87), 49 states have internal predecessors, (87), 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 22:16:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 87 transitions. [2025-04-13 22:16:58,507 INFO L79 Accepts]: Start accepts. Automaton has 50 states and 87 transitions. Word has length 25 [2025-04-13 22:16:58,507 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:16:58,507 INFO L485 AbstractCegarLoop]: Abstraction has 50 states and 87 transitions. [2025-04-13 22:16:58,507 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 22:16:58,508 INFO L278 IsEmpty]: Start isEmpty. Operand 50 states and 87 transitions. [2025-04-13 22:16:58,508 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-04-13 22:16:58,508 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:16:58,508 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:16:58,508 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-13 22:16:58,508 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 1 more)] === [2025-04-13 22:16:58,509 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:16:58,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1379282693, now seen corresponding path program 1 times [2025-04-13 22:16:58,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:16:58,509 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269913079] [2025-04-13 22:16:58,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 22:16:58,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:16:58,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-13 22:16:58,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-13 22:16:58,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 22:16:58,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:16:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-13 22:16:59,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:16:59,483 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269913079] [2025-04-13 22:16:59,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269913079] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:16:59,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:16:59,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 22:16:59,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001823175] [2025-04-13 22:16:59,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:16:59,484 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 22:16:59,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:16:59,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 22:16:59,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:16:59,484 INFO L87 Difference]: Start difference. First operand 50 states and 87 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:16:59,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:16:59,621 INFO L93 Difference]: Finished difference Result 68 states and 106 transitions. [2025-04-13 22:16:59,621 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 22:16:59,621 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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) Word has length 26 [2025-04-13 22:16:59,621 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:16:59,621 INFO L225 Difference]: With dead ends: 68 [2025-04-13 22:16:59,622 INFO L226 Difference]: Without dead ends: 56 [2025-04-13 22:16:59,622 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 22:16:59,622 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 22:16:59,622 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 22:16:59,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-04-13 22:16:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2025-04-13 22:16:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 49 states have internal predecessors, (82), 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 22:16:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 82 transitions. [2025-04-13 22:16:59,628 INFO L79 Accepts]: Start accepts. Automaton has 50 states and 82 transitions. Word has length 26 [2025-04-13 22:16:59,628 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:16:59,628 INFO L485 AbstractCegarLoop]: Abstraction has 50 states and 82 transitions. [2025-04-13 22:16:59,628 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:16:59,628 INFO L278 IsEmpty]: Start isEmpty. Operand 50 states and 82 transitions. [2025-04-13 22:16:59,629 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-04-13 22:16:59,629 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:16:59,629 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:16:59,629 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-13 22:16:59,629 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 22:16:59,629 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:16:59,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1379945783, now seen corresponding path program 2 times [2025-04-13 22:16:59,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:16:59,631 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088117627] [2025-04-13 22:16:59,631 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 22:16:59,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:16:59,646 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-04-13 22:16:59,669 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 26 statements. [2025-04-13 22:16:59,669 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 22:16:59,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:17:00,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-13 22:17:00,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:17:00,188 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088117627] [2025-04-13 22:17:00,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088117627] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:17:00,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:17:00,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 22:17:00,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466887133] [2025-04-13 22:17:00,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:17:00,188 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 22:17:00,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:17:00,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 22:17:00,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:17:00,189 INFO L87 Difference]: Start difference. First operand 50 states and 82 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:00,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:17:00,320 INFO L93 Difference]: Finished difference Result 65 states and 97 transitions. [2025-04-13 22:17:00,320 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 22:17:00,320 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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) Word has length 26 [2025-04-13 22:17:00,320 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:17:00,321 INFO L225 Difference]: With dead ends: 65 [2025-04-13 22:17:00,321 INFO L226 Difference]: Without dead ends: 49 [2025-04-13 22:17:00,321 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 22:17:00,321 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 22:17:00,322 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 22:17:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2025-04-13 22:17:00,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2025-04-13 22:17:00,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.5952380952380953) internal successors, (67), 42 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 22:17:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 67 transitions. [2025-04-13 22:17:00,324 INFO L79 Accepts]: Start accepts. Automaton has 43 states and 67 transitions. Word has length 26 [2025-04-13 22:17:00,324 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:17:00,324 INFO L485 AbstractCegarLoop]: Abstraction has 43 states and 67 transitions. [2025-04-13 22:17:00,324 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:00,324 INFO L278 IsEmpty]: Start isEmpty. Operand 43 states and 67 transitions. [2025-04-13 22:17:00,325 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-04-13 22:17:00,325 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:17:00,325 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:17:00,325 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-13 22:17:00,325 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 22:17:00,325 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:17:00,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1961100923, now seen corresponding path program 3 times [2025-04-13 22:17:00,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:17:00,325 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175122416] [2025-04-13 22:17:00,325 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 22:17:00,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:17:00,338 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 2 equivalence classes. [2025-04-13 22:17:00,355 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 20 of 26 statements. [2025-04-13 22:17:00,355 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-13 22:17:00,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:17:00,765 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-13 22:17:00,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:17:00,765 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175122416] [2025-04-13 22:17:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175122416] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:17:00,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:17:00,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 22:17:00,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746246748] [2025-04-13 22:17:00,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:17:00,765 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 22:17:00,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:17:00,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 22:17:00,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:17:00,766 INFO L87 Difference]: Start difference. First operand 43 states and 67 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:00,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:17:00,894 INFO L93 Difference]: Finished difference Result 55 states and 77 transitions. [2025-04-13 22:17:00,895 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 22:17:00,895 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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) Word has length 26 [2025-04-13 22:17:00,895 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:17:00,895 INFO L225 Difference]: With dead ends: 55 [2025-04-13 22:17:00,895 INFO L226 Difference]: Without dead ends: 43 [2025-04-13 22:17:00,896 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 22:17:00,896 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 22:17:00,896 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 22:17:00,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2025-04-13 22:17:00,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2025-04-13 22:17:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.5) internal successors, (54), 36 states have internal predecessors, (54), 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 22:17:00,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2025-04-13 22:17:00,901 INFO L79 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 26 [2025-04-13 22:17:00,902 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:17:00,902 INFO L485 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2025-04-13 22:17:00,902 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:00,902 INFO L278 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2025-04-13 22:17:00,902 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-04-13 22:17:00,902 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:17:00,902 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:17:00,902 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-13 22:17:00,902 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 22:17:00,904 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:17:00,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2008237973, now seen corresponding path program 4 times [2025-04-13 22:17:00,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:17:00,905 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078871364] [2025-04-13 22:17:00,905 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 22:17:00,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:17:00,920 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 26 statements into 2 equivalence classes. [2025-04-13 22:17:00,951 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-04-13 22:17:00,952 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 22:17:00,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:17:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-13 22:17:01,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:17:01,597 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078871364] [2025-04-13 22:17:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078871364] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:17:01,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:17:01,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 22:17:01,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857985142] [2025-04-13 22:17:01,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:17:01,598 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 22:17:01,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:17:01,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 22:17:01,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:17:01,598 INFO L87 Difference]: Start difference. First operand 37 states and 54 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:01,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:17:01,714 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2025-04-13 22:17:01,714 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 22:17:01,714 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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) Word has length 26 [2025-04-13 22:17:01,714 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:17:01,714 INFO L225 Difference]: With dead ends: 45 [2025-04-13 22:17:01,714 INFO L226 Difference]: Without dead ends: 33 [2025-04-13 22:17:01,715 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 22:17:01,715 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 22:17:01,715 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 22:17:01,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-04-13 22:17:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2025-04-13 22:17:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.40625) internal successors, (45), 32 states have internal predecessors, (45), 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 22:17:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2025-04-13 22:17:01,717 INFO L79 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 26 [2025-04-13 22:17:01,717 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:17:01,717 INFO L485 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2025-04-13 22:17:01,717 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:01,717 INFO L278 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2025-04-13 22:17:01,719 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-04-13 22:17:01,719 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:17:01,719 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:17:01,719 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-13 22:17:01,719 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 22:17:01,719 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:17:01,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1446623123, now seen corresponding path program 5 times [2025-04-13 22:17:01,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:17:01,720 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4885819] [2025-04-13 22:17:01,720 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 22:17:01,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:17:01,742 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-04-13 22:17:01,765 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-04-13 22:17:01,765 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 22:17:01,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:17:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-13 22:17:02,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:17:02,280 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4885819] [2025-04-13 22:17:02,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4885819] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:17:02,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:17:02,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 22:17:02,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359791824] [2025-04-13 22:17:02,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:17:02,280 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 22:17:02,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:17:02,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 22:17:02,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:17:02,281 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:17:02,395 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2025-04-13 22:17:02,395 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 22:17:02,395 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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) Word has length 26 [2025-04-13 22:17:02,396 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:17:02,396 INFO L225 Difference]: With dead ends: 39 [2025-04-13 22:17:02,396 INFO L226 Difference]: Without dead ends: 30 [2025-04-13 22:17:02,396 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 22:17:02,397 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 22:17:02,398 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 22:17:02,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-04-13 22:17:02,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-04-13 22:17:02,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 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 22:17:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2025-04-13 22:17:02,402 INFO L79 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 26 [2025-04-13 22:17:02,402 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:17:02,403 INFO L485 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2025-04-13 22:17:02,403 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:02,403 INFO L278 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2025-04-13 22:17:02,403 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-04-13 22:17:02,403 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 22:17:02,403 INFO L218 NwaCegarLoop]: 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] [2025-04-13 22:17:02,403 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-13 22:17:02,403 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-04-13 22:17:02,403 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 22:17:02,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1427854793, now seen corresponding path program 6 times [2025-04-13 22:17:02,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 22:17:02,404 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063404878] [2025-04-13 22:17:02,404 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-13 22:17:02,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 22:17:02,418 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 26 statements into 2 equivalence classes. [2025-04-13 22:17:02,430 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 20 of 26 statements. [2025-04-13 22:17:02,430 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-04-13 22:17:02,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 22:17:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-13 22:17:02,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 22:17:02,828 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063404878] [2025-04-13 22:17:02,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063404878] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 22:17:02,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 22:17:02,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 22:17:02,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838977778] [2025-04-13 22:17:02,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 22:17:02,829 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 22:17:02,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:17:02,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 22:17:02,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-13 22:17:02,829 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:02,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 22:17:02,933 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2025-04-13 22:17:02,933 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 22:17:02,933 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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) Word has length 26 [2025-04-13 22:17:02,933 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 22:17:02,934 INFO L225 Difference]: With dead ends: 30 [2025-04-13 22:17:02,934 INFO L226 Difference]: Without dead ends: 0 [2025-04-13 22:17:02,934 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-13 22:17:02,934 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 22:17:02,934 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 22:17:02,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-13 22:17:02,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-13 22:17:02,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 22:17:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-13 22:17:02,935 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2025-04-13 22:17:02,935 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 22:17:02,935 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-13 22:17:02,935 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:17:02,935 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-13 22:17:02,935 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-13 22:17:02,938 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-04-13 22:17:02,938 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-04-13 22:17:02,938 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-04-13 22:17:02,938 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-04-13 22:17:02,938 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-13 22:17:02,940 INFO L422 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2025-04-13 22:17:02,942 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 22:17:02,942 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 22:17:02,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 10:17:02 BasicIcfg [2025-04-13 22:17:02,945 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 22:17:02,946 INFO L158 Benchmark]: Toolchain (without parser) took 7849.28ms. Allocated memory was 155.2MB in the beginning and 444.6MB in the end (delta: 289.4MB). Free memory was 108.7MB in the beginning and 395.2MB in the end (delta: -286.4MB). Peak memory consumption was 5.0MB. Max. memory is 8.0GB. [2025-04-13 22:17:02,946 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 22:17:02,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.73ms. Allocated memory is still 155.2MB. Free memory was 108.4MB in the beginning and 92.0MB in the end (delta: 16.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 22:17:02,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.07ms. Allocated memory is still 155.2MB. Free memory was 92.0MB in the beginning and 88.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 22:17:02,946 INFO L158 Benchmark]: Boogie Preprocessor took 60.11ms. Allocated memory is still 155.2MB. Free memory was 88.5MB in the beginning and 85.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 22:17:02,947 INFO L158 Benchmark]: IcfgBuilder took 1048.54ms. Allocated memory is still 155.2MB. Free memory was 85.0MB in the beginning and 74.9MB in the end (delta: 10.1MB). Peak memory consumption was 70.8MB. Max. memory is 8.0GB. [2025-04-13 22:17:02,947 INFO L158 Benchmark]: TraceAbstraction took 6390.86ms. Allocated memory was 155.2MB in the beginning and 444.6MB in the end (delta: 289.4MB). Free memory was 74.0MB in the beginning and 395.2MB in the end (delta: -321.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 22:17:02,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 296.73ms. Allocated memory is still 155.2MB. Free memory was 108.4MB in the beginning and 92.0MB in the end (delta: 16.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.07ms. Allocated memory is still 155.2MB. Free memory was 92.0MB in the beginning and 88.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.11ms. Allocated memory is still 155.2MB. Free memory was 88.5MB in the beginning and 85.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * IcfgBuilder took 1048.54ms. Allocated memory is still 155.2MB. Free memory was 85.0MB in the beginning and 74.9MB in the end (delta: 10.1MB). Peak memory consumption was 70.8MB. Max. memory is 8.0GB. * TraceAbstraction took 6390.86ms. Allocated memory was 155.2MB in the beginning and 444.6MB in the end (delta: 289.4MB). Free memory was 74.0MB in the beginning and 395.2MB in the end (delta: -321.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 109]: 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, 34 locations, 39 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 997 IncrementalHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 997 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=6, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 291 NumberOfCodeBlocks, 273 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 989 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 51/51 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 22:17:02,967 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...