./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label44.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem10_label44.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e65715203b5986c0877aee121b02f1098e69f701c6bd353eab2daeab84d5a285 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 01:40:45,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 01:40:45,115 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 01:40:45,119 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 01:40:45,119 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 01:40:45,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 01:40:45,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 01:40:45,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 01:40:45,143 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 01:40:45,143 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 01:40:45,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 01:40:45,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 01:40:45,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 01:40:45,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 01:40:45,144 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 01:40:45,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 01:40:45,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 01:40:45,145 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 01:40:45,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 01:40:45,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 01:40:45,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 01:40:45,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 01:40:45,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 01:40:45,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 01:40:45,146 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 01:40:45,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 01:40:45,146 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 01:40:45,146 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 01:40:45,146 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 01:40:45,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 01:40:45,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 01:40:45,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 01:40:45,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 01:40:45,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 01:40:45,147 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e65715203b5986c0877aee121b02f1098e69f701c6bd353eab2daeab84d5a285 [2025-03-08 01:40:45,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 01:40:45,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 01:40:45,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 01:40:45,374 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 01:40:45,374 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 01:40:45,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label44.c [2025-03-08 01:40:46,555 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1881bedda/baa79878361e46deb22ec25a86bd9631/FLAGab64f3e37 [2025-03-08 01:40:46,833 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 01:40:46,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label44.c [2025-03-08 01:40:46,844 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1881bedda/baa79878361e46deb22ec25a86bd9631/FLAGab64f3e37 [2025-03-08 01:40:47,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1881bedda/baa79878361e46deb22ec25a86bd9631 [2025-03-08 01:40:47,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 01:40:47,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 01:40:47,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 01:40:47,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 01:40:47,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 01:40:47,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d6b5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47, skipping insertion in model container [2025-03-08 01:40:47,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 01:40:47,326 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label44.c[6569,6582] [2025-03-08 01:40:47,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 01:40:47,435 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 01:40:47,459 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label44.c[6569,6582] [2025-03-08 01:40:47,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 01:40:47,523 INFO L204 MainTranslator]: Completed translation [2025-03-08 01:40:47,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47 WrapperNode [2025-03-08 01:40:47,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 01:40:47,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 01:40:47,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 01:40:47,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 01:40:47,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,591 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 595 [2025-03-08 01:40:47,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 01:40:47,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 01:40:47,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 01:40:47,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 01:40:47,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,623 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 01:40:47,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 01:40:47,668 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 01:40:47,668 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 01:40:47,668 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 01:40:47,669 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (1/1) ... [2025-03-08 01:40:47,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 01:40:47,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 01:40:47,699 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) [2025-03-08 01:40:47,702 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 [2025-03-08 01:40:47,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 01:40:47,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 01:40:47,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 01:40:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 01:40:47,775 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 01:40:47,776 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 01:40:48,576 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2025-03-08 01:40:48,576 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 01:40:48,589 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 01:40:48,589 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 01:40:48,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 01:40:48 BoogieIcfgContainer [2025-03-08 01:40:48,590 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 01:40:48,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 01:40:48,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 01:40:48,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 01:40:48,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 01:40:47" (1/3) ... [2025-03-08 01:40:48,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462452bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 01:40:48, skipping insertion in model container [2025-03-08 01:40:48,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:40:47" (2/3) ... [2025-03-08 01:40:48,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462452bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 01:40:48, skipping insertion in model container [2025-03-08 01:40:48,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 01:40:48" (3/3) ... [2025-03-08 01:40:48,598 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem10_label44.c [2025-03-08 01:40:48,610 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 01:40:48,611 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem10_label44.c that has 1 procedures, 206 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 01:40:48,660 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 01:40:48,670 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24950eda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 01:40:48,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 01:40:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6813725490196079) internal successors, (343), 205 states have internal predecessors, (343), 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) [2025-03-08 01:40:48,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-08 01:40:48,681 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:40:48,682 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:40:48,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:40:48,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:40:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1601291698, now seen corresponding path program 1 times [2025-03-08 01:40:48,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:40:48,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141355804] [2025-03-08 01:40:48,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:48,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:40:48,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-08 01:40:48,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-08 01:40:48,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:48,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:40:49,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:40:49,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141355804] [2025-03-08 01:40:49,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141355804] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:40:49,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:40:49,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:40:49,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027024869] [2025-03-08 01:40:49,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:40:49,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 01:40:49,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:40:49,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 01:40:49,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 01:40:49,148 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6813725490196079) internal successors, (343), 205 states have internal predecessors, (343), 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 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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) [2025-03-08 01:40:50,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:40:50,083 INFO L93 Difference]: Finished difference Result 696 states and 1244 transitions. [2025-03-08 01:40:50,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 01:40:50,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2025-03-08 01:40:50,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:40:50,092 INFO L225 Difference]: With dead ends: 696 [2025-03-08 01:40:50,093 INFO L226 Difference]: Without dead ends: 421 [2025-03-08 01:40:50,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 01:40:50,096 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 459 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 01:40:50,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 44 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 01:40:50,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2025-03-08 01:40:50,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2025-03-08 01:40:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3833333333333333) internal successors, (581), 420 states have internal predecessors, (581), 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) [2025-03-08 01:40:50,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 581 transitions. [2025-03-08 01:40:50,133 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 581 transitions. Word has length 57 [2025-03-08 01:40:50,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:40:50,133 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 581 transitions. [2025-03-08 01:40:50,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 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) [2025-03-08 01:40:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 581 transitions. [2025-03-08 01:40:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 01:40:50,136 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:40:50,136 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:40:50,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 01:40:50,137 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:40:50,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:40:50,137 INFO L85 PathProgramCache]: Analyzing trace with hash -370665492, now seen corresponding path program 1 times [2025-03-08 01:40:50,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:40:50,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173585375] [2025-03-08 01:40:50,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:50,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:40:50,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 01:40:50,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 01:40:50,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:50,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:40:50,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:40:50,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173585375] [2025-03-08 01:40:50,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173585375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:40:50,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:40:50,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:40:50,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737122893] [2025-03-08 01:40:50,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:40:50,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 01:40:50,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:40:50,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 01:40:50,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 01:40:50,530 INFO L87 Difference]: Start difference. First operand 421 states and 581 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:40:51,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:40:51,039 INFO L93 Difference]: Finished difference Result 1000 states and 1460 transitions. [2025-03-08 01:40:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 01:40:51,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2025-03-08 01:40:51,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:40:51,043 INFO L225 Difference]: With dead ends: 1000 [2025-03-08 01:40:51,043 INFO L226 Difference]: Without dead ends: 701 [2025-03-08 01:40:51,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 01:40:51,045 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 69 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 01:40:51,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 85 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 01:40:51,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2025-03-08 01:40:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 699. [2025-03-08 01:40:51,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.4426934097421202) internal successors, (1007), 698 states have internal predecessors, (1007), 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) [2025-03-08 01:40:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1007 transitions. [2025-03-08 01:40:51,066 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1007 transitions. Word has length 132 [2025-03-08 01:40:51,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:40:51,066 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 1007 transitions. [2025-03-08 01:40:51,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 01:40:51,066 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1007 transitions. [2025-03-08 01:40:51,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2025-03-08 01:40:51,069 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:40:51,069 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:40:51,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 01:40:51,069 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:40:51,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:40:51,070 INFO L85 PathProgramCache]: Analyzing trace with hash 693402136, now seen corresponding path program 1 times [2025-03-08 01:40:51,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:40:51,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985930572] [2025-03-08 01:40:51,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:51,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:40:51,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 192 statements into 1 equivalence classes. [2025-03-08 01:40:51,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 192 of 192 statements. [2025-03-08 01:40:51,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:51,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:51,235 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 01:40:51,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:40:51,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985930572] [2025-03-08 01:40:51,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985930572] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:40:51,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:40:51,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 01:40:51,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663132201] [2025-03-08 01:40:51,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:40:51,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:40:51,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:40:51,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:40:51,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:40:51,237 INFO L87 Difference]: Start difference. First operand 699 states and 1007 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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) [2025-03-08 01:40:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:40:51,604 INFO L93 Difference]: Finished difference Result 1535 states and 2291 transitions. [2025-03-08 01:40:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:40:51,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 192 [2025-03-08 01:40:51,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:40:51,611 INFO L225 Difference]: With dead ends: 1535 [2025-03-08 01:40:51,611 INFO L226 Difference]: Without dead ends: 977 [2025-03-08 01:40:51,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:40:51,612 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 107 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 01:40:51,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 34 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 01:40:51,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2025-03-08 01:40:51,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2025-03-08 01:40:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.3616803278688525) internal successors, (1329), 976 states have internal predecessors, (1329), 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) [2025-03-08 01:40:51,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1329 transitions. [2025-03-08 01:40:51,656 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1329 transitions. Word has length 192 [2025-03-08 01:40:51,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:40:51,657 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1329 transitions. [2025-03-08 01:40:51,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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) [2025-03-08 01:40:51,657 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1329 transitions. [2025-03-08 01:40:51,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-03-08 01:40:51,659 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:40:51,660 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:40:51,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 01:40:51,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:40:51,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:40:51,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1073613497, now seen corresponding path program 1 times [2025-03-08 01:40:51,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:40:51,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604303256] [2025-03-08 01:40:51,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:51,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:40:51,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-03-08 01:40:51,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-03-08 01:40:51,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:51,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:40:51,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:40:51,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604303256] [2025-03-08 01:40:51,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604303256] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:40:51,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:40:51,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:40:51,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717101659] [2025-03-08 01:40:51,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:40:51,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:40:51,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:40:51,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:40:51,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:40:51,846 INFO L87 Difference]: Start difference. First operand 977 states and 1329 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2025-03-08 01:40:52,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:40:52,206 INFO L93 Difference]: Finished difference Result 2369 states and 3269 transitions. [2025-03-08 01:40:52,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:40:52,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 198 [2025-03-08 01:40:52,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:40:52,211 INFO L225 Difference]: With dead ends: 2369 [2025-03-08 01:40:52,212 INFO L226 Difference]: Without dead ends: 1533 [2025-03-08 01:40:52,213 INFO L434 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 [2025-03-08 01:40:52,213 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 69 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 01:40:52,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 215 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 01:40:52,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2025-03-08 01:40:52,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1255. [2025-03-08 01:40:52,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.2974481658692185) internal successors, (1627), 1254 states have internal predecessors, (1627), 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) [2025-03-08 01:40:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1627 transitions. [2025-03-08 01:40:52,235 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1627 transitions. Word has length 198 [2025-03-08 01:40:52,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:40:52,236 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1627 transitions. [2025-03-08 01:40:52,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2025-03-08 01:40:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1627 transitions. [2025-03-08 01:40:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2025-03-08 01:40:52,238 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:40:52,238 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:40:52,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 01:40:52,238 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:40:52,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:40:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash 381996389, now seen corresponding path program 1 times [2025-03-08 01:40:52,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:40:52,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858011898] [2025-03-08 01:40:52,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:40:52,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 231 statements into 1 equivalence classes. [2025-03-08 01:40:52,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 231 of 231 statements. [2025-03-08 01:40:52,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:52,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 01:40:52,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:40:52,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858011898] [2025-03-08 01:40:52,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858011898] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:40:52,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:40:52,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 01:40:52,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82068307] [2025-03-08 01:40:52,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:40:52,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 01:40:52,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:40:52,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 01:40:52,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-08 01:40:52,589 INFO L87 Difference]: Start difference. First operand 1255 states and 1627 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 6 states have internal predecessors, (167), 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) [2025-03-08 01:40:52,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:40:52,920 INFO L93 Difference]: Finished difference Result 2431 states and 3171 transitions. [2025-03-08 01:40:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 01:40:52,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 6 states have internal predecessors, (167), 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 231 [2025-03-08 01:40:52,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:40:52,925 INFO L225 Difference]: With dead ends: 2431 [2025-03-08 01:40:52,926 INFO L226 Difference]: Without dead ends: 1255 [2025-03-08 01:40:52,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-08 01:40:52,928 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 120 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 01:40:52,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 26 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 01:40:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2025-03-08 01:40:52,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2025-03-08 01:40:52,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.2862838915470494) internal successors, (1613), 1254 states have internal predecessors, (1613), 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) [2025-03-08 01:40:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1613 transitions. [2025-03-08 01:40:52,949 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1613 transitions. Word has length 231 [2025-03-08 01:40:52,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:40:52,949 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1613 transitions. [2025-03-08 01:40:52,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 6 states have internal predecessors, (167), 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) [2025-03-08 01:40:52,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1613 transitions. [2025-03-08 01:40:52,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2025-03-08 01:40:52,951 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:40:52,951 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:40:52,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 01:40:52,952 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:40:52,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:40:52,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1574862147, now seen corresponding path program 1 times [2025-03-08 01:40:52,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:40:52,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978457814] [2025-03-08 01:40:52,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:52,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:40:52,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes. [2025-03-08 01:40:52,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements. [2025-03-08 01:40:52,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:52,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:40:53,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:40:53,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978457814] [2025-03-08 01:40:53,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978457814] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:40:53,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:40:53,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 01:40:53,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598553802] [2025-03-08 01:40:53,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:40:53,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:40:53,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:40:53,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:40:53,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:40:53,147 INFO L87 Difference]: Start difference. First operand 1255 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2025-03-08 01:40:53,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:40:53,490 INFO L93 Difference]: Finished difference Result 2925 states and 3853 transitions. [2025-03-08 01:40:53,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:40:53,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 254 [2025-03-08 01:40:53,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:40:53,497 INFO L225 Difference]: With dead ends: 2925 [2025-03-08 01:40:53,497 INFO L226 Difference]: Without dead ends: 1811 [2025-03-08 01:40:53,499 INFO L434 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 [2025-03-08 01:40:53,500 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 01:40:53,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 189 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 01:40:53,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2025-03-08 01:40:53,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1533. [2025-03-08 01:40:53,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 1.2284595300261096) internal successors, (1882), 1532 states have internal predecessors, (1882), 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) [2025-03-08 01:40:53,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1882 transitions. [2025-03-08 01:40:53,532 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1882 transitions. Word has length 254 [2025-03-08 01:40:53,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:40:53,532 INFO L471 AbstractCegarLoop]: Abstraction has 1533 states and 1882 transitions. [2025-03-08 01:40:53,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2025-03-08 01:40:53,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1882 transitions. [2025-03-08 01:40:53,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2025-03-08 01:40:53,535 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:40:53,536 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:40:53,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 01:40:53,536 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:40:53,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:40:53,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1518439246, now seen corresponding path program 1 times [2025-03-08 01:40:53,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:40:53,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035828094] [2025-03-08 01:40:53,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:53,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:40:53,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 273 statements into 1 equivalence classes. [2025-03-08 01:40:53,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 273 of 273 statements. [2025-03-08 01:40:53,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:53,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-03-08 01:40:53,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:40:53,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035828094] [2025-03-08 01:40:53,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035828094] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:40:53,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 01:40:53,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 01:40:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354162504] [2025-03-08 01:40:53,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:40:53,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:40:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:40:53,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:40:53,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:40:53,687 INFO L87 Difference]: Start difference. First operand 1533 states and 1882 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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) [2025-03-08 01:40:54,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:40:54,068 INFO L93 Difference]: Finished difference Result 3203 states and 3992 transitions. [2025-03-08 01:40:54,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:40:54,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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 273 [2025-03-08 01:40:54,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:40:54,075 INFO L225 Difference]: With dead ends: 3203 [2025-03-08 01:40:54,075 INFO L226 Difference]: Without dead ends: 1811 [2025-03-08 01:40:54,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 01:40:54,077 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 01:40:54,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 75 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 01:40:54,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2025-03-08 01:40:54,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1811. [2025-03-08 01:40:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.1729281767955801) internal successors, (2123), 1810 states have internal predecessors, (2123), 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) [2025-03-08 01:40:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2123 transitions. [2025-03-08 01:40:54,106 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2123 transitions. Word has length 273 [2025-03-08 01:40:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:40:54,107 INFO L471 AbstractCegarLoop]: Abstraction has 1811 states and 2123 transitions. [2025-03-08 01:40:54,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 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) [2025-03-08 01:40:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2123 transitions. [2025-03-08 01:40:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2025-03-08 01:40:54,110 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:40:54,111 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:40:54,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 01:40:54,111 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:40:54,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:40:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1274182330, now seen corresponding path program 1 times [2025-03-08 01:40:54,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:40:54,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169316610] [2025-03-08 01:40:54,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:54,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:40:54,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 280 statements into 1 equivalence classes. [2025-03-08 01:40:54,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 280 of 280 statements. [2025-03-08 01:40:54,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:54,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 285 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 01:40:54,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:40:54,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169316610] [2025-03-08 01:40:54,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169316610] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 01:40:54,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800369841] [2025-03-08 01:40:54,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:40:54,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 01:40:54,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 01:40:54,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 01:40:54,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 01:40:54,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 280 statements into 1 equivalence classes. [2025-03-08 01:40:54,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 280 of 280 statements. [2025-03-08 01:40:54,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:40:54,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:40:54,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 01:40:54,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 01:40:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 125 proven. 179 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 01:40:55,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 01:40:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 125 proven. 179 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 01:40:57,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800369841] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 01:40:57,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 01:40:57,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-08 01:40:57,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578037357] [2025-03-08 01:40:57,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 01:40:57,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 01:40:57,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:40:57,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 01:40:57,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-03-08 01:40:57,102 INFO L87 Difference]: Start difference. First operand 1811 states and 2123 transitions. Second operand has 12 states, 12 states have (on average 46.916666666666664) internal successors, (563), 11 states have internal predecessors, (563), 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) [2025-03-08 01:40:59,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:40:59,959 INFO L93 Difference]: Finished difference Result 7158 states and 8340 transitions. [2025-03-08 01:40:59,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-08 01:40:59,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 46.916666666666664) internal successors, (563), 11 states have internal predecessors, (563), 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 280 [2025-03-08 01:40:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:40:59,977 INFO L225 Difference]: With dead ends: 7158 [2025-03-08 01:40:59,978 INFO L226 Difference]: Without dead ends: 5488 [2025-03-08 01:40:59,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2025-03-08 01:40:59,980 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 2438 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 3203 mSolverCounterSat, 679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 3882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 679 IncrementalHoareTripleChecker+Valid, 3203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-08 01:40:59,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 72 Invalid, 3882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [679 Valid, 3203 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-08 01:40:59,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5488 states. [2025-03-08 01:41:00,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5488 to 2784. [2025-03-08 01:41:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2783 states have (on average 1.1444484369385555) internal successors, (3185), 2783 states have internal predecessors, (3185), 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) [2025-03-08 01:41:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3185 transitions. [2025-03-08 01:41:00,042 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3185 transitions. Word has length 280 [2025-03-08 01:41:00,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:41:00,043 INFO L471 AbstractCegarLoop]: Abstraction has 2784 states and 3185 transitions. [2025-03-08 01:41:00,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 46.916666666666664) internal successors, (563), 11 states have internal predecessors, (563), 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) [2025-03-08 01:41:00,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3185 transitions. [2025-03-08 01:41:00,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2025-03-08 01:41:00,047 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 01:41:00,047 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:41:00,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 01:41:00,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 01:41:00,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 01:41:00,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 01:41:00,253 INFO L85 PathProgramCache]: Analyzing trace with hash -763931885, now seen corresponding path program 1 times [2025-03-08 01:41:00,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 01:41:00,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558181239] [2025-03-08 01:41:00,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:41:00,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 01:41:00,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 305 statements into 1 equivalence classes. [2025-03-08 01:41:00,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 305 of 305 statements. [2025-03-08 01:41:00,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:41:00,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:41:00,514 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 41 proven. 68 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-08 01:41:00,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 01:41:00,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558181239] [2025-03-08 01:41:00,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558181239] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 01:41:00,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850560229] [2025-03-08 01:41:00,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 01:41:00,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 01:41:00,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 01:41:00,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 01:41:00,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 01:41:00,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 305 statements into 1 equivalence classes. [2025-03-08 01:41:00,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 305 of 305 statements. [2025-03-08 01:41:00,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 01:41:00,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 01:41:00,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 01:41:00,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 01:41:00,679 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-03-08 01:41:00,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 01:41:00,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850560229] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 01:41:00,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 01:41:00,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-03-08 01:41:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286578111] [2025-03-08 01:41:00,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 01:41:00,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 01:41:00,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 01:41:00,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 01:41:00,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 01:41:00,681 INFO L87 Difference]: Start difference. First operand 2784 states and 3185 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2025-03-08 01:41:01,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 01:41:01,009 INFO L93 Difference]: Finished difference Result 5981 states and 6943 transitions. [2025-03-08 01:41:01,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 01:41:01,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 305 [2025-03-08 01:41:01,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 01:41:01,010 INFO L225 Difference]: With dead ends: 5981 [2025-03-08 01:41:01,010 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 01:41:01,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 01:41:01,015 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 85 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 01:41:01,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 221 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 01:41:01,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 01:41:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 01:41:01,016 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) [2025-03-08 01:41:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 01:41:01,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2025-03-08 01:41:01,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 01:41:01,016 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 01:41:01,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2025-03-08 01:41:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 01:41:01,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 01:41:01,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 01:41:01,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 01:41:01,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-03-08 01:41:01,225 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 01:41:01,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 01:41:01,657 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 01:41:01,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 01:41:01 BoogieIcfgContainer [2025-03-08 01:41:01,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 01:41:01,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 01:41:01,679 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 01:41:01,680 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 01:41:01,680 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 01:40:48" (3/4) ... [2025-03-08 01:41:01,683 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 01:41:01,699 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-08 01:41:01,700 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-08 01:41:01,700 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 01:41:01,701 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 01:41:01,793 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 01:41:01,793 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 01:41:01,794 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 01:41:01,796 INFO L158 Benchmark]: Toolchain (without parser) took 14657.89ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 112.6MB in the beginning and 184.6MB in the end (delta: -72.0MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2025-03-08 01:41:01,796 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 01:41:01,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.07ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 85.4MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 01:41:01,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.66ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 78.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 01:41:01,797 INFO L158 Benchmark]: Boogie Preprocessor took 74.62ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 69.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 01:41:01,797 INFO L158 Benchmark]: IcfgBuilder took 922.12ms. Allocated memory is still 142.6MB. Free memory was 69.1MB in the beginning and 104.0MB in the end (delta: -34.9MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2025-03-08 01:41:01,797 INFO L158 Benchmark]: TraceAbstraction took 13086.21ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 104.0MB in the beginning and 196.3MB in the end (delta: -92.2MB). Peak memory consumption was 166.5MB. Max. memory is 16.1GB. [2025-03-08 01:41:01,798 INFO L158 Benchmark]: Witness Printer took 115.70ms. Allocated memory is still 285.2MB. Free memory was 196.3MB in the beginning and 184.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 01:41:01,799 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.07ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 85.4MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.66ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 78.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.62ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 69.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 922.12ms. Allocated memory is still 142.6MB. Free memory was 69.1MB in the beginning and 104.0MB in the end (delta: -34.9MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13086.21ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 104.0MB in the beginning and 196.3MB in the end (delta: -92.2MB). Peak memory consumption was 166.5MB. Max. memory is 16.1GB. * Witness Printer took 115.70ms. Allocated memory is still 285.2MB. Free memory was 196.3MB in the beginning and 184.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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: 185]: 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 CFG has 1 procedures, 206 locations, 343 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.6s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3428 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3428 mSDsluCounter, 961 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 117 mSDsCounter, 1327 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6811 IncrementalHoareTripleChecker+Invalid, 8138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1327 mSolverCounterUnsat, 844 mSDtfsCounter, 6811 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 910 GetRequests, 868 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2784occurred in iteration=8, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 3262 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 2507 NumberOfCodeBlocks, 2507 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2775 ConstructedInterpolants, 0 QuantifiedInterpolants, 16261 SizeOfPredicates, 5 NumberOfNonLiveVariables, 817 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 1999/2509 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Location Invariant Derived location invariant: ((((((((((((((a19 <= 9) && (a19 != 8)) && (14 == a4)) && ((0 < (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (0 <= (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && (a12 == 0)) || ((((a19 <= 9) && (39 <= a1)) && (14 == a4)) && (a12 == 0))) || ((((a19 == 9) && (14 == a4)) && (a10 == 2)) && (a12 == 0))) || ((((((a10 == 1) && (a19 != 8)) && (14 == a4)) && ((0 < (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (0 <= (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && (a12 == 0))) || ((((a10 == 0) && (a19 == 9)) && (14 == a4)) && (a12 == 0))) || ((((((a10 <= 0) && (a19 != 8)) && (14 == a4)) && ((0 < (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (0 <= (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && (a12 == 0))) || ((((((a19 <= 9) && (4 <= a10)) && (14 == a4)) && ((0 < (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (0 <= (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && (a12 == 0))) || ((((a10 == 0) && (14 == a4)) && (a12 == 0)) && (23 <= a1))) || ((((((a19 <= 9) && (14 == a4)) && (a10 == 2)) && ((0 < (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1)))) || (((a1 >= 0) ? (a1 % 5) : ((a1 % 5) + 5)) != 0))) && (0 <= (331463 + ((a1 >= 0) ? (a1 / 5) : ((a1 / 5) - 1))))) && (a12 == 0))) RESULT: Ultimate proved your program to be correct! [2025-03-08 01:41:01,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE