/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis FINITE_AUTOMATA -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 17:26:06,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 17:26:06,424 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 17:26:06,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 17:26:06,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 17:26:06,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 17:26:06,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 17:26:06,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 17:26:06,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 17:26:06,451 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 17:26:06,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 17:26:06,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 17:26:06,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 17:26:06,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 17:26:06,452 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 17:26:06,453 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:26:06,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:26:06,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 17:26:06,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 17:26:06,454 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 17:26:06,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 17:26:06,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 17:26:06,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 17:26:06,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 17:26:06,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 17:26:06,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 17:26:06,454 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 [2025-04-13 17:26:06,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 17:26:06,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 17:26:06,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 17:26:06,695 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 17:26:06,696 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 17:26:06,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2025-04-13 17:26:08,027 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1261271b/ea2aefb047ff441384d90bdc3895af6c/FLAGd5fdf9cb2 [2025-04-13 17:26:08,314 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 17:26:08,314 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_04-priv_multi_true.i [2025-04-13 17:26:08,331 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1261271b/ea2aefb047ff441384d90bdc3895af6c/FLAGd5fdf9cb2 [2025-04-13 17:26:09,229 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1261271b/ea2aefb047ff441384d90bdc3895af6c [2025-04-13 17:26:09,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 17:26:09,232 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 17:26:09,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 17:26:09,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 17:26:09,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 17:26:09,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26265e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09, skipping insertion in model container [2025-04-13 17:26:09,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 17:26:09,427 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_04-priv_multi_true.i[1087,1100] [2025-04-13 17:26:09,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:26:09,603 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 17:26:09,619 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_04-priv_multi_true.i[1087,1100] [2025-04-13 17:26:09,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:26:09,709 INFO L204 MainTranslator]: Completed translation [2025-04-13 17:26:09,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09 WrapperNode [2025-04-13 17:26:09,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 17:26:09,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 17:26:09,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 17:26:09,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 17:26:09,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,752 INFO L138 Inliner]: procedures = 271, calls = 37, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2025-04-13 17:26:09,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 17:26:09,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 17:26:09,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 17:26:09,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 17:26:09,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,762 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,774 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 17:26:09,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,787 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 17:26:09,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 17:26:09,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 17:26:09,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 17:26:09,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (1/1) ... [2025-04-13 17:26:09,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:26:09,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 17:26:09,828 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 17:26:09,829 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 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2025-04-13 17:26:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2025-04-13 17:26:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure process [2025-04-13 17:26:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 17:26:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 17:26:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 17:26:09,846 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 17:26:10,074 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 17:26:10,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 17:26:10,251 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 17:26:10,251 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 17:26:10,251 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 17:26:10,400 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 17:26:10,405 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 17:26:10,409 INFO L313 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-13 17:26:10,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:26:10 BoogieIcfgContainer [2025-04-13 17:26:10,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 17:26:10,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 17:26:10,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 17:26:10,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 17:26:10,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 05:26:09" (1/3) ... [2025-04-13 17:26:10,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21210653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:26:10, skipping insertion in model container [2025-04-13 17:26:10,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:26:09" (2/3) ... [2025-04-13 17:26:10,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21210653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:26:10, skipping insertion in model container [2025-04-13 17:26:10,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:26:10" (3/3) ... [2025-04-13 17:26:10,417 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2025-04-13 17:26:10,427 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 17:26:10,429 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_04-priv_multi_true.i that has 4 procedures, 44 locations, 48 edges, 1 initial locations, 4 loop locations, and 2 error locations. [2025-04-13 17:26:10,429 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 17:26:10,468 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-13 17:26:10,490 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 51 transitions, 114 flow [2025-04-13 17:26:10,750 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7214 states, 7211 states have (on average 4.417140479822494) internal successors, (31852), 7213 states have internal predecessors, (31852), 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 17:26:10,771 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 17:26:10,782 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;@8c55de8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 17:26:10,782 INFO L341 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-04-13 17:26:10,812 INFO L278 IsEmpty]: Start isEmpty. Operand has 7214 states, 7211 states have (on average 4.417140479822494) internal successors, (31852), 7213 states have internal predecessors, (31852), 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 17:26:10,823 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-04-13 17:26:10,823 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:26:10,824 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:26:10,824 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 3 more)] === [2025-04-13 17:26:10,830 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:26:10,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1245907978, now seen corresponding path program 1 times [2025-04-13 17:26:10,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:26:10,836 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580362754] [2025-04-13 17:26:10,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:26:10,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:26:10,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-13 17:26:10,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-13 17:26:10,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:26:10,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:26:11,319 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 17:26:11,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:26:11,320 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580362754] [2025-04-13 17:26:11,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580362754] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:26:11,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:26:11,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 17:26:11,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243262758] [2025-04-13 17:26:11,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:26:11,324 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 17:26:11,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:26:11,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 17:26:11,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:26:11,358 INFO L87 Difference]: Start difference. First operand has 7214 states, 7211 states have (on average 4.417140479822494) internal successors, (31852), 7213 states have internal predecessors, (31852), 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, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 17:26:11,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:26:11,820 INFO L93 Difference]: Finished difference Result 13902 states and 61293 transitions. [2025-04-13 17:26:11,822 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 17:26:11,823 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2025-04-13 17:26:11,823 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:26:11,955 INFO L225 Difference]: With dead ends: 13902 [2025-04-13 17:26:11,955 INFO L226 Difference]: Without dead ends: 10770 [2025-04-13 17:26:11,969 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 17:26:11,971 INFO L437 NwaCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 17:26:11,972 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 13 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 17:26:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10770 states. [2025-04-13 17:26:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10770 to 10250. [2025-04-13 17:26:12,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10250 states, 10250 states have (on average 4.2473170731707315) internal successors, (43535), 10249 states have internal predecessors, (43535), 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 17:26:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10250 states to 10250 states and 43535 transitions. [2025-04-13 17:26:12,562 INFO L79 Accepts]: Start accepts. Automaton has 10250 states and 43535 transitions. Word has length 11 [2025-04-13 17:26:12,564 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:26:12,564 INFO L485 AbstractCegarLoop]: Abstraction has 10250 states and 43535 transitions. [2025-04-13 17:26:12,564 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 17:26:12,564 INFO L278 IsEmpty]: Start isEmpty. Operand 10250 states and 43535 transitions. [2025-04-13 17:26:12,567 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-04-13 17:26:12,567 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:26:12,568 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:26:12,568 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 17:26:12,568 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 17:26:12,568 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:26:12,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1212635360, now seen corresponding path program 1 times [2025-04-13 17:26:12,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:26:12,568 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532436120] [2025-04-13 17:26:12,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:26:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:26:12,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-13 17:26:12,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-13 17:26:12,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:26:12,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:26:12,750 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 17:26:12,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:26:12,751 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532436120] [2025-04-13 17:26:12,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532436120] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:26:12,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:26:12,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 17:26:12,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449462898] [2025-04-13 17:26:12,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:26:12,752 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 17:26:12,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:26:12,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 17:26:12,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 17:26:12,752 INFO L87 Difference]: Start difference. First operand 10250 states and 43535 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 17:26:13,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:26:13,666 INFO L93 Difference]: Finished difference Result 31119 states and 136072 transitions. [2025-04-13 17:26:13,671 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 17:26:13,671 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2025-04-13 17:26:13,671 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:26:13,869 INFO L225 Difference]: With dead ends: 31119 [2025-04-13 17:26:13,870 INFO L226 Difference]: Without dead ends: 22306 [2025-04-13 17:26:13,903 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 17:26:13,904 INFO L437 NwaCegarLoop]: 11 mSDtfsCounter, 89 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 17:26:13,908 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 27 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 17:26:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22306 states. [2025-04-13 17:26:14,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22306 to 16220. [2025-04-13 17:26:14,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16220 states, 16220 states have (on average 4.216399506781751) internal successors, (68390), 16219 states have internal predecessors, (68390), 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 17:26:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16220 states to 16220 states and 68390 transitions. [2025-04-13 17:26:14,772 INFO L79 Accepts]: Start accepts. Automaton has 16220 states and 68390 transitions. Word has length 11 [2025-04-13 17:26:14,772 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:26:14,772 INFO L485 AbstractCegarLoop]: Abstraction has 16220 states and 68390 transitions. [2025-04-13 17:26:14,773 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 17:26:14,773 INFO L278 IsEmpty]: Start isEmpty. Operand 16220 states and 68390 transitions. [2025-04-13 17:26:14,775 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-04-13 17:26:14,775 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:26:14,775 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:26:14,775 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 17:26:14,775 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 3 more)] === [2025-04-13 17:26:14,776 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:26:14,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1649031662, now seen corresponding path program 1 times [2025-04-13 17:26:14,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:26:14,776 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78722562] [2025-04-13 17:26:14,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:26:14,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:26:14,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 17:26:14,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 17:26:14,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:26:14,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:26:14,891 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 17:26:14,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:26:14,891 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78722562] [2025-04-13 17:26:14,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78722562] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:26:14,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:26:14,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 17:26:14,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774631629] [2025-04-13 17:26:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:26:14,891 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 17:26:14,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:26:14,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 17:26:14,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 17:26:14,892 INFO L87 Difference]: Start difference. First operand 16220 states and 68390 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 17:26:15,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:26:15,605 INFO L93 Difference]: Finished difference Result 31680 states and 133254 transitions. [2025-04-13 17:26:15,606 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 17:26:15,607 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2025-04-13 17:26:15,607 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:26:15,708 INFO L225 Difference]: With dead ends: 31680 [2025-04-13 17:26:15,708 INFO L226 Difference]: Without dead ends: 16106 [2025-04-13 17:26:15,739 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 17:26:15,739 INFO L437 NwaCegarLoop]: 8 mSDtfsCounter, 96 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 17:26:15,740 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 22 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 17:26:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16106 states. [2025-04-13 17:26:16,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16106 to 14122. [2025-04-13 17:26:16,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14122 states, 14122 states have (on average 4.1935986404192045) internal successors, (59222), 14121 states have internal predecessors, (59222), 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 17:26:16,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14122 states to 14122 states and 59222 transitions. [2025-04-13 17:26:16,317 INFO L79 Accepts]: Start accepts. Automaton has 14122 states and 59222 transitions. Word has length 14 [2025-04-13 17:26:16,317 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:26:16,317 INFO L485 AbstractCegarLoop]: Abstraction has 14122 states and 59222 transitions. [2025-04-13 17:26:16,317 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 17:26:16,317 INFO L278 IsEmpty]: Start isEmpty. Operand 14122 states and 59222 transitions. [2025-04-13 17:26:16,321 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-04-13 17:26:16,321 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:26:16,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:26:16,325 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 17:26:16,326 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 3 more)] === [2025-04-13 17:26:16,326 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:26:16,326 INFO L85 PathProgramCache]: Analyzing trace with hash -47048038, now seen corresponding path program 1 times [2025-04-13 17:26:16,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:26:16,326 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859714855] [2025-04-13 17:26:16,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:26:16,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:26:16,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 17:26:16,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 17:26:16,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:26:16,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:26:16,556 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 17:26:16,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:26:16,556 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859714855] [2025-04-13 17:26:16,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859714855] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:26:16,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:26:16,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 17:26:16,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032916586] [2025-04-13 17:26:16,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:26:16,557 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 17:26:16,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:26:16,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 17:26:16,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:26:16,557 INFO L87 Difference]: Start difference. First operand 14122 states and 59222 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 17:26:17,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:26:17,257 INFO L93 Difference]: Finished difference Result 37903 states and 159274 transitions. [2025-04-13 17:26:17,258 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 17:26:17,258 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2025-04-13 17:26:17,258 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:26:17,396 INFO L225 Difference]: With dead ends: 37903 [2025-04-13 17:26:17,397 INFO L226 Difference]: Without dead ends: 24143 [2025-04-13 17:26:17,426 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 17:26:17,426 INFO L437 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 17:26:17,426 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 17 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 17:26:17,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24143 states. [2025-04-13 17:26:18,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24143 to 21079. [2025-04-13 17:26:18,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21079 states, 21077 states have (on average 4.108981354082649) internal successors, (86605), 21078 states have internal predecessors, (86605), 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 17:26:18,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21079 states to 21079 states and 86605 transitions. [2025-04-13 17:26:18,223 INFO L79 Accepts]: Start accepts. Automaton has 21079 states and 86605 transitions. Word has length 14 [2025-04-13 17:26:18,223 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:26:18,223 INFO L485 AbstractCegarLoop]: Abstraction has 21079 states and 86605 transitions. [2025-04-13 17:26:18,223 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 17:26:18,223 INFO L278 IsEmpty]: Start isEmpty. Operand 21079 states and 86605 transitions. [2025-04-13 17:26:18,226 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-04-13 17:26:18,226 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:26:18,226 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:26:18,226 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 17:26:18,226 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-04-13 17:26:18,226 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:26:18,227 INFO L85 PathProgramCache]: Analyzing trace with hash -312180478, now seen corresponding path program 1 times [2025-04-13 17:26:18,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:26:18,227 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97330736] [2025-04-13 17:26:18,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:26:18,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:26:18,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-13 17:26:18,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-13 17:26:18,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:26:18,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:26:18,370 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 17:26:18,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:26:18,370 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97330736] [2025-04-13 17:26:18,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97330736] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:26:18,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:26:18,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 17:26:18,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798524573] [2025-04-13 17:26:18,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:26:18,371 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 17:26:18,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:26:18,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 17:26:18,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-04-13 17:26:18,371 INFO L87 Difference]: Start difference. First operand 21079 states and 86605 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 17:26:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:26:20,189 INFO L93 Difference]: Finished difference Result 100867 states and 424063 transitions. [2025-04-13 17:26:20,189 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-13 17:26:20,190 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2025-04-13 17:26:20,190 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:26:20,860 INFO L225 Difference]: With dead ends: 100867 [2025-04-13 17:26:20,860 INFO L226 Difference]: Without dead ends: 82657 [2025-04-13 17:26:20,901 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2025-04-13 17:26:20,902 INFO L437 NwaCegarLoop]: 16 mSDtfsCounter, 401 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 17:26:20,902 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 57 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 17:26:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82657 states. [2025-04-13 17:26:22,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82657 to 42670. [2025-04-13 17:26:22,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42670 states, 42668 states have (on average 4.041694009562201) internal successors, (172451), 42669 states have internal predecessors, (172451), 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 17:26:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42670 states to 42670 states and 172451 transitions. [2025-04-13 17:26:22,833 INFO L79 Accepts]: Start accepts. Automaton has 42670 states and 172451 transitions. Word has length 16 [2025-04-13 17:26:22,833 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:26:22,833 INFO L485 AbstractCegarLoop]: Abstraction has 42670 states and 172451 transitions. [2025-04-13 17:26:22,833 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 17:26:22,833 INFO L278 IsEmpty]: Start isEmpty. Operand 42670 states and 172451 transitions. [2025-04-13 17:26:22,836 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-04-13 17:26:22,836 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:26:22,836 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:26:22,837 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 17:26:22,837 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 3 more)] === [2025-04-13 17:26:22,837 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:26:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash 47844391, now seen corresponding path program 1 times [2025-04-13 17:26:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:26:22,837 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999248700] [2025-04-13 17:26:22,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:26:22,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:26:22,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-13 17:26:22,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-13 17:26:22,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:26:22,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:26:23,011 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 17:26:23,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:26:23,012 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999248700] [2025-04-13 17:26:23,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999248700] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:26:23,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:26:23,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 17:26:23,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921411391] [2025-04-13 17:26:23,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:26:23,012 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 17:26:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:26:23,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 17:26:23,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 17:26:23,013 INFO L87 Difference]: Start difference. First operand 42670 states and 172451 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 17:26:23,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:26:23,902 INFO L93 Difference]: Finished difference Result 44990 states and 181173 transitions. [2025-04-13 17:26:23,902 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 17:26:23,902 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2025-04-13 17:26:23,902 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:26:23,953 INFO L225 Difference]: With dead ends: 44990 [2025-04-13 17:26:23,953 INFO L226 Difference]: Without dead ends: 0 [2025-04-13 17:26:23,993 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 17:26:23,994 INFO L437 NwaCegarLoop]: 10 mSDtfsCounter, 47 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 17:26:23,994 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 14 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 17:26:23,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-13 17:26:23,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-13 17:26:23,994 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 17:26:23,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-13 17:26:24,038 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2025-04-13 17:26:24,038 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:26:24,038 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-13 17:26:24,038 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 17:26:24,039 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-13 17:26:24,039 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-13 17:26:24,041 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2025-04-13 17:26:24,041 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2025-04-13 17:26:24,041 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2025-04-13 17:26:24,041 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2025-04-13 17:26:24,041 INFO L790 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2025-04-13 17:26:24,041 INFO L790 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2025-04-13 17:26:24,041 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-13 17:26:24,043 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-04-13 17:26:24,045 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 17:26:24,045 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 17:26:24,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 05:26:24 BasicIcfg [2025-04-13 17:26:24,047 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 17:26:24,047 INFO L158 Benchmark]: Toolchain (without parser) took 14815.64ms. Allocated memory was 155.2MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 105.3MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 740.3MB. Max. memory is 8.0GB. [2025-04-13 17:26:24,048 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:26:24,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.53ms. Allocated memory is still 155.2MB. Free memory was 105.3MB in the beginning and 72.8MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2025-04-13 17:26:24,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.08ms. Allocated memory is still 155.2MB. Free memory was 72.8MB in the beginning and 69.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 17:26:24,048 INFO L158 Benchmark]: Boogie Preprocessor took 49.38ms. Allocated memory is still 155.2MB. Free memory was 69.5MB in the beginning and 67.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:26:24,048 INFO L158 Benchmark]: RCFGBuilder took 604.14ms. Allocated memory is still 155.2MB. Free memory was 67.1MB in the beginning and 99.2MB in the end (delta: -32.1MB). Peak memory consumption was 54.3MB. Max. memory is 8.0GB. [2025-04-13 17:26:24,048 INFO L158 Benchmark]: TraceAbstraction took 13635.23ms. Allocated memory was 155.2MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 98.3MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 732.1MB. Max. memory is 8.0GB. [2025-04-13 17:26:24,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 476.53ms. Allocated memory is still 155.2MB. Free memory was 105.3MB in the beginning and 72.8MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.08ms. Allocated memory is still 155.2MB. Free memory was 72.8MB in the beginning and 69.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.38ms. Allocated memory is still 155.2MB. Free memory was 69.5MB in the beginning and 67.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 604.14ms. Allocated memory is still 155.2MB. Free memory was 67.1MB in the beginning and 99.2MB in the end (delta: -32.1MB). Peak memory consumption was 54.3MB. Max. memory is 8.0GB. * TraceAbstraction took 13635.23ms. Allocated memory was 155.2MB in the beginning and 3.1GB in the end (delta: 2.9GB). Free memory was 98.3MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 732.1MB. 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 7 procedures, 74 locations, 84 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 13.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 690 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 690 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 942 IncrementalHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 63 mSDtfsCounter, 942 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42670occurred in iteration=5, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 51641 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 17:26:24,063 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...