/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/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 21:52:44,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 21:52:44,324 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 21:52:44,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 21:52:44,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 21:52:44,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 21:52:44,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 21:52:44,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 21:52:44,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 21:52:44,350 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 21:52:44,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 21:52:44,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 21:52:44,351 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 21:52:44,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 21:52:44,351 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 21:52:44,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 21:52:44,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 21:52:44,352 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:52:44,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:52:44,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:52:44,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 21:52:44,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 21:52:44,353 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 21:52:44,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 21:52:44,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 21:52:44,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 21:52:44,576 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 21:52:44,576 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 21:52:44,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2025-04-13 21:52:45,909 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a906a4bfc/c882c32429654722970cc2554e814cb4/FLAGdb6ec92a1 [2025-04-13 21:52:46,113 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 21:52:46,113 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2025-04-13 21:52:46,124 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a906a4bfc/c882c32429654722970cc2554e814cb4/FLAGdb6ec92a1 [2025-04-13 21:52:46,909 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a906a4bfc/c882c32429654722970cc2554e814cb4 [2025-04-13 21:52:46,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 21:52:46,912 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 21:52:46,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 21:52:46,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 21:52:46,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 21:52:46,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:52:46" (1/1) ... [2025-04-13 21:52:46,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca242e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:46, skipping insertion in model container [2025-04-13 21:52:46,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:52:46" (1/1) ... [2025-04-13 21:52:46,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 21:52:47,105 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2025-04-13 21:52:47,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:52:47,243 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 21:52:47,261 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2025-04-13 21:52:47,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:52:47,317 INFO L204 MainTranslator]: Completed translation [2025-04-13 21:52:47,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47 WrapperNode [2025-04-13 21:52:47,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 21:52:47,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 21:52:47,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 21:52:47,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 21:52:47,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,352 INFO L138 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2025-04-13 21:52:47,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 21:52:47,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 21:52:47,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 21:52:47,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 21:52:47,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,382 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-04-13 21:52:47,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,385 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 21:52:47,392 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-13 21:52:47,392 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-13 21:52:47,392 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-13 21:52:47,393 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (1/1) ... [2025-04-13 21:52:47,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:52:47,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:52:47,424 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 21:52:47,426 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 21:52:47,442 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-13 21:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 21:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-13 21:52:47,443 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-13 21:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 21:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 21:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 21:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-13 21:52:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 21:52:47,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 21:52:47,444 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 21:52:47,533 INFO L256 CfgBuilder]: Building ICFG [2025-04-13 21:52:47,534 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 21:52:47,680 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 21:52:47,681 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 21:52:47,681 INFO L318 CfgBuilder]: Performing block encoding [2025-04-13 21:52:47,828 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 21:52:47,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 09:52:47 BoogieIcfgContainer [2025-04-13 21:52:47,829 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-13 21:52:47,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 21:52:47,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 21:52:47,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 21:52:47,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 09:52:46" (1/3) ... [2025-04-13 21:52:47,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7975a585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:52:47, skipping insertion in model container [2025-04-13 21:52:47,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:52:47" (2/3) ... [2025-04-13 21:52:47,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7975a585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:52:47, skipping insertion in model container [2025-04-13 21:52:47,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 09:52:47" (3/3) ... [2025-04-13 21:52:47,835 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2025-04-13 21:52:47,845 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 21:52:47,846 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_30-traces-oplus-vs-meet_true.i that has 2 procedures, 30 locations, 28 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-13 21:52:47,846 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 21:52:47,877 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-13 21:52:47,914 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 29 transitions, 65 flow [2025-04-13 21:52:47,929 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 87 states, 85 states have (on average 1.776470588235294) internal successors, (151), 86 states have internal predecessors, (151), 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 21:52:47,953 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 21:52:47,966 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;@4a57c0ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 21:52:47,966 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-13 21:52:47,968 INFO L278 IsEmpty]: Start isEmpty. Operand has 87 states, 85 states have (on average 1.776470588235294) internal successors, (151), 86 states have internal predecessors, (151), 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 21:52:47,970 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2025-04-13 21:52:47,971 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:52:47,971 INFO L218 NwaCegarLoop]: trace histogram [1] [2025-04-13 21:52:47,971 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-13 21:52:47,975 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:52:47,975 INFO L85 PathProgramCache]: Analyzing trace with hash 220, now seen corresponding path program 1 times [2025-04-13 21:52:47,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:52:47,981 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600372037] [2025-04-13 21:52:47,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:52:47,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:52:48,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-13 21:52:48,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-13 21:52:48,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:52:48,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:48,150 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 21:52:48,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:52:48,154 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600372037] [2025-04-13 21:52:48,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600372037] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:52:48,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:52:48,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2025-04-13 21:52:48,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097657877] [2025-04-13 21:52:48,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:52:48,162 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 21:52:48,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:52:48,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 21:52:48,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 21:52:48,179 INFO L87 Difference]: Start difference. First operand has 87 states, 85 states have (on average 1.776470588235294) internal successors, (151), 86 states have internal predecessors, (151), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 21:52:48,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:52:48,220 INFO L93 Difference]: Finished difference Result 87 states and 151 transitions. [2025-04-13 21:52:48,222 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 21:52:48,223 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2025-04-13 21:52:48,223 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:52:48,228 INFO L225 Difference]: With dead ends: 87 [2025-04-13 21:52:48,229 INFO L226 Difference]: Without dead ends: 86 [2025-04-13 21:52:48,232 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 21:52:48,234 INFO L437 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 21:52:48,234 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 21:52:48,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-04-13 21:52:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2025-04-13 21:52:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.7647058823529411) internal successors, (150), 85 states have internal predecessors, (150), 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 21:52:48,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 150 transitions. [2025-04-13 21:52:48,265 INFO L79 Accepts]: Start accepts. Automaton has 86 states and 150 transitions. Word has length 1 [2025-04-13 21:52:48,265 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:52:48,266 INFO L485 AbstractCegarLoop]: Abstraction has 86 states and 150 transitions. [2025-04-13 21:52:48,266 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 21:52:48,267 INFO L278 IsEmpty]: Start isEmpty. Operand 86 states and 150 transitions. [2025-04-13 21:52:48,267 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-04-13 21:52:48,267 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:52:48,267 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:52:48,267 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 21:52:48,268 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-13 21:52:48,268 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:52:48,268 INFO L85 PathProgramCache]: Analyzing trace with hash 705656636, now seen corresponding path program 1 times [2025-04-13 21:52:48,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:52:48,268 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125160800] [2025-04-13 21:52:48,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:52:48,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:52:48,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-13 21:52:48,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-13 21:52:48,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:52:48,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:48,395 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 21:52:48,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:52:48,395 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125160800] [2025-04-13 21:52:48,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125160800] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:52:48,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:52:48,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 21:52:48,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332857274] [2025-04-13 21:52:48,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:52:48,397 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 21:52:48,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:52:48,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 21:52:48,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 21:52:48,399 INFO L87 Difference]: Start difference. First operand 86 states and 150 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 21:52:48,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:52:48,429 INFO L93 Difference]: Finished difference Result 95 states and 158 transitions. [2025-04-13 21:52:48,429 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 21:52:48,429 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-04-13 21:52:48,429 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:52:48,430 INFO L225 Difference]: With dead ends: 95 [2025-04-13 21:52:48,430 INFO L226 Difference]: Without dead ends: 56 [2025-04-13 21:52:48,430 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 21:52:48,431 INFO L437 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 21:52:48,431 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 21:52:48,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-04-13 21:52:48,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-04-13 21:52:48,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.6363636363636365) internal successors, (90), 55 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 21:52:48,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 90 transitions. [2025-04-13 21:52:48,434 INFO L79 Accepts]: Start accepts. Automaton has 56 states and 90 transitions. Word has length 7 [2025-04-13 21:52:48,434 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:52:48,434 INFO L485 AbstractCegarLoop]: Abstraction has 56 states and 90 transitions. [2025-04-13 21:52:48,434 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 21:52:48,434 INFO L278 IsEmpty]: Start isEmpty. Operand 56 states and 90 transitions. [2025-04-13 21:52:48,435 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-13 21:52:48,435 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:52:48,435 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:52:48,435 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 21:52:48,435 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-13 21:52:48,435 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:52:48,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1953318252, now seen corresponding path program 1 times [2025-04-13 21:52:48,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:52:48,436 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551767076] [2025-04-13 21:52:48,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:52:48,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:52:48,445 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 21:52:48,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 21:52:48,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:52:48,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:48,607 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 21:52:48,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:52:48,608 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551767076] [2025-04-13 21:52:48,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551767076] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:52:48,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:52:48,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 21:52:48,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590515142] [2025-04-13 21:52:48,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:52:48,608 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:52:48,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:52:48,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:52:48,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:52:48,609 INFO L87 Difference]: Start difference. First operand 56 states and 90 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 21:52:48,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:52:48,640 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2025-04-13 21:52:48,640 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:52:48,640 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2025-04-13 21:52:48,640 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:52:48,640 INFO L225 Difference]: With dead ends: 56 [2025-04-13 21:52:48,640 INFO L226 Difference]: Without dead ends: 0 [2025-04-13 21:52:48,641 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 21:52:48,641 INFO L437 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 21:52:48,641 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 21:52:48,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-13 21:52:48,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-13 21:52:48,642 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 21:52:48,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-13 21:52:48,642 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2025-04-13 21:52:48,642 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:52:48,642 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-13 21:52:48,642 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 21:52:48,642 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-13 21:52:48,642 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-13 21:52:48,644 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-13 21:52:48,644 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-04-13 21:52:48,644 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-13 21:52:48,645 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 21:52:48,647 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-13 21:52:48,649 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 21:52:48,649 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 21:52:48,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 09:52:48 BasicIcfg [2025-04-13 21:52:48,653 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 21:52:48,654 INFO L158 Benchmark]: Toolchain (without parser) took 1741.05ms. Allocated memory is still 125.8MB. Free memory was 89.8MB in the beginning and 87.5MB in the end (delta: 2.3MB). Peak memory consumption was 1.1MB. Max. memory is 8.0GB. [2025-04-13 21:52:48,655 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:52:48,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.69ms. Allocated memory is still 125.8MB. Free memory was 89.8MB in the beginning and 67.2MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-13 21:52:48,655 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.47ms. Allocated memory is still 125.8MB. Free memory was 67.2MB in the beginning and 64.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 21:52:48,655 INFO L158 Benchmark]: Boogie Preprocessor took 38.78ms. Allocated memory is still 125.8MB. Free memory was 64.7MB in the beginning and 63.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:52:48,655 INFO L158 Benchmark]: IcfgBuilder took 436.39ms. Allocated memory is still 125.8MB. Free memory was 63.0MB in the beginning and 31.2MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2025-04-13 21:52:48,656 INFO L158 Benchmark]: TraceAbstraction took 822.72ms. Allocated memory is still 125.8MB. Free memory was 30.4MB in the beginning and 87.5MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:52:48,657 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 404.69ms. Allocated memory is still 125.8MB. Free memory was 89.8MB in the beginning and 67.2MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.47ms. Allocated memory is still 125.8MB. Free memory was 67.2MB in the beginning and 64.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.78ms. Allocated memory is still 125.8MB. Free memory was 64.7MB in the beginning and 63.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 436.39ms. Allocated memory is still 125.8MB. Free memory was 63.0MB in the beginning and 31.2MB in the end (delta: 31.8MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 822.72ms. Allocated memory is still 125.8MB. Free memory was 30.4MB in the beginning and 87.5MB in the end (delta: -57.0MB). 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 45 locations, 44 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 16 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 21:52:48,672 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...