./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.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 9671c34313c5e47de5bd2f842db47c3009aa180bae8c949f2010db1179ac602f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 21:36:27,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 21:36:27,629 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 21:36:27,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 21:36:27,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 21:36:27,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 21:36:27,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 21:36:27,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 21:36:27,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 21:36:27,680 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 21:36:27,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 21:36:27,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 21:36:27,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 21:36:27,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 21:36:27,682 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 21:36:27,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 21:36:27,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 21:36:27,687 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 21:36:27,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 21:36:27,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 21:36:27,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 21:36:27,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 21:36:27,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 21:36:27,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 21:36:27,689 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 21:36:27,689 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 21:36:27,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 21:36:27,689 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 21:36:27,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 21:36:27,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 21:36:27,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 21:36:27,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 21:36:27,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:36:27,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 21:36:27,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 21:36:27,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 21:36:27,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 21:36:27,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 21:36:27,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 21:36:27,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 21:36:27,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 21:36:27,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 21:36:27,694 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9671c34313c5e47de5bd2f842db47c3009aa180bae8c949f2010db1179ac602f [2024-11-19 21:36:27,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 21:36:27,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 21:36:27,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 21:36:27,995 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 21:36:27,995 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 21:36:27,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c [2024-11-19 21:36:29,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 21:36:29,570 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 21:36:29,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound5.c [2024-11-19 21:36:29,585 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ffe99d8/2c1874b4909045b1af56cdc93e1247e8/FLAG5bf9711a3 [2024-11-19 21:36:29,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8ffe99d8/2c1874b4909045b1af56cdc93e1247e8 [2024-11-19 21:36:29,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 21:36:29,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 21:36:29,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 21:36:29,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 21:36:29,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 21:36:29,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:36:29" (1/1) ... [2024-11-19 21:36:29,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3b5a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:29, skipping insertion in model container [2024-11-19 21:36:29,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:36:29" (1/1) ... [2024-11-19 21:36:29,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 21:36:30,120 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/nla-digbench-scaling/ps6-ll_valuebound5.c[458,471] [2024-11-19 21:36:30,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:36:30,150 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 21:36:30,160 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/nla-digbench-scaling/ps6-ll_valuebound5.c[458,471] [2024-11-19 21:36:30,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:36:30,181 INFO L204 MainTranslator]: Completed translation [2024-11-19 21:36:30,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30 WrapperNode [2024-11-19 21:36:30,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 21:36:30,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 21:36:30,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 21:36:30,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 21:36:30,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,210 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2024-11-19 21:36:30,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 21:36:30,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 21:36:30,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 21:36:30,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 21:36:30,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,221 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,231 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]. [2024-11-19 21:36:30,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 21:36:30,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 21:36:30,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 21:36:30,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 21:36:30,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (1/1) ... [2024-11-19 21:36:30,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:36:30,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:36:30,270 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) [2024-11-19 21:36:30,275 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 [2024-11-19 21:36:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 21:36:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 21:36:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 21:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 21:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 21:36:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 21:36:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 21:36:30,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 21:36:30,357 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 21:36:30,359 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 21:36:30,481 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-19 21:36:30,481 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 21:36:30,500 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 21:36:30,501 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 21:36:30,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:36:30 BoogieIcfgContainer [2024-11-19 21:36:30,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 21:36:30,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 21:36:30,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 21:36:30,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 21:36:30,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:36:29" (1/3) ... [2024-11-19 21:36:30,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ae1e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:36:30, skipping insertion in model container [2024-11-19 21:36:30,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:30" (2/3) ... [2024-11-19 21:36:30,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ae1e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:36:30, skipping insertion in model container [2024-11-19 21:36:30,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:36:30" (3/3) ... [2024-11-19 21:36:30,541 INFO L112 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound5.c [2024-11-19 21:36:30,567 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 21:36:30,568 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 21:36:30,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 21:36:30,633 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;@4f89ebe4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 21:36:30,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 21:36:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 21:36:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 21:36:30,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:36:30,642 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:36:30,642 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:36:30,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:36:30,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1845349065, now seen corresponding path program 1 times [2024-11-19 21:36:30,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:36:30,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289930954] [2024-11-19 21:36:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:30,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:36:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:30,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:36:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:30,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:36:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 21:36:30,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:36:30,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289930954] [2024-11-19 21:36:30,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289930954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:36:30,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:36:30,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 21:36:30,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098724718] [2024-11-19 21:36:30,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:36:30,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 21:36:30,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:36:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 21:36:30,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 21:36:30,832 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 21:36:30,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:36:30,847 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2024-11-19 21:36:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 21:36:30,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-11-19 21:36:30,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:36:30,854 INFO L225 Difference]: With dead ends: 45 [2024-11-19 21:36:30,854 INFO L226 Difference]: Without dead ends: 20 [2024-11-19 21:36:30,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 21:36:30,859 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:36:30,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:36:30,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-19 21:36:30,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-19 21:36:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 21:36:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-19 21:36:30,889 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 18 [2024-11-19 21:36:30,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:36:30,889 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-19 21:36:30,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 21:36:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-19 21:36:30,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 21:36:30,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:36:30,891 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:36:30,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 21:36:30,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:36:30,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:36:30,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1506842435, now seen corresponding path program 1 times [2024-11-19 21:36:30,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:36:30,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815423952] [2024-11-19 21:36:30,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:30,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:36:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 21:36:30,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934793653] [2024-11-19 21:36:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:30,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:30,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:36:30,934 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) [2024-11-19 21:36:30,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 21:36:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:30,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 21:36:31,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:36:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 21:36:31,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:36:31,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:36:31,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815423952] [2024-11-19 21:36:31,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 21:36:31,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934793653] [2024-11-19 21:36:31,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934793653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:36:31,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:36:31,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:36:31,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274333116] [2024-11-19 21:36:31,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:36:31,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:36:31,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:36:31,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:36:31,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:36:31,107 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 21:36:31,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:36:31,187 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2024-11-19 21:36:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:36:31,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-19 21:36:31,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:36:31,189 INFO L225 Difference]: With dead ends: 31 [2024-11-19 21:36:31,189 INFO L226 Difference]: Without dead ends: 27 [2024-11-19 21:36:31,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 21:36:31,192 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:36:31,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 69 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:36:31,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-19 21:36:31,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-19 21:36:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 21:36:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-11-19 21:36:31,207 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2024-11-19 21:36:31,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:36:31,207 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-11-19 21:36:31,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 21:36:31,208 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-11-19 21:36:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 21:36:31,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:36:31,208 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:36:31,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 21:36:31,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:31,415 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:36:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:36:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 903983968, now seen corresponding path program 1 times [2024-11-19 21:36:31,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:36:31,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702801978] [2024-11-19 21:36:31,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:31,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:36:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 21:36:31,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422058403] [2024-11-19 21:36:31,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:31,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:31,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:36:31,472 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) [2024-11-19 21:36:31,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 21:36:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:31,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 21:36:31,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:36:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 21:36:31,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 21:36:31,760 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 21:36:31,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:36:31,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702801978] [2024-11-19 21:36:31,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 21:36:31,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422058403] [2024-11-19 21:36:31,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422058403] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 21:36:31,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:36:31,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2024-11-19 21:36:31,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592548458] [2024-11-19 21:36:31,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:36:31,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:36:31,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:36:31,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:36:31,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:36:31,766 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 21:36:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:36:31,815 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2024-11-19 21:36:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:36:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-11-19 21:36:31,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:36:31,816 INFO L225 Difference]: With dead ends: 33 [2024-11-19 21:36:31,816 INFO L226 Difference]: Without dead ends: 29 [2024-11-19 21:36:31,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 21:36:31,818 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:36:31,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 65 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 21:36:31,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-19 21:36:31,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-19 21:36:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 21:36:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2024-11-19 21:36:31,831 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 25 [2024-11-19 21:36:31,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:36:31,831 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2024-11-19 21:36:31,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 21:36:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2024-11-19 21:36:31,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-19 21:36:31,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:36:31,833 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:36:31,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 21:36:32,037 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,SelfDestructingSolverStorable2 [2024-11-19 21:36:32,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:36:32,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:36:32,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1648043046, now seen corresponding path program 1 times [2024-11-19 21:36:32,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:36:32,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974747564] [2024-11-19 21:36:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:32,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:36:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 21:36:32,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216212167] [2024-11-19 21:36:32,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:32,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:32,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:36:32,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:36:32,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 21:36:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:32,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 21:36:32,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:36:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 21:36:32,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 21:36:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 21:36:32,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:36:32,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974747564] [2024-11-19 21:36:32,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 21:36:32,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216212167] [2024-11-19 21:36:32,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216212167] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 21:36:32,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 21:36:32,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-11-19 21:36:32,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278704019] [2024-11-19 21:36:32,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 21:36:32,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 21:36:32,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:36:32,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 21:36:32,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:36:32,445 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-19 21:36:32,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:36:32,591 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2024-11-19 21:36:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:36:32,592 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 36 [2024-11-19 21:36:32,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:36:32,594 INFO L225 Difference]: With dead ends: 46 [2024-11-19 21:36:32,594 INFO L226 Difference]: Without dead ends: 38 [2024-11-19 21:36:32,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:36:32,597 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:36:32,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:36:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-19 21:36:32,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-19 21:36:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-19 21:36:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2024-11-19 21:36:32,626 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 36 [2024-11-19 21:36:32,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:36:32,626 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2024-11-19 21:36:32,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-19 21:36:32,627 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2024-11-19 21:36:32,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-19 21:36:32,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:36:32,629 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:36:32,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 21:36:32,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:32,830 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:36:32,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:36:32,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1013596503, now seen corresponding path program 2 times [2024-11-19 21:36:32,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:36:32,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470153364] [2024-11-19 21:36:32,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:32,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:36:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 21:36:32,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177642023] [2024-11-19 21:36:32,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 21:36:32,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:32,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:36:32,898 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:36:32,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 21:36:32,963 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 21:36:32,964 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 21:36:32,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 21:36:32,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:36:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-19 21:36:33,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 21:36:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-19 21:36:33,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:36:33,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470153364] [2024-11-19 21:36:33,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 21:36:33,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177642023] [2024-11-19 21:36:33,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177642023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 21:36:33,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 21:36:33,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2024-11-19 21:36:33,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682455375] [2024-11-19 21:36:33,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 21:36:33,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 21:36:33,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:36:33,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 21:36:33,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-19 21:36:33,513 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 21 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 14 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-19 21:36:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:36:34,056 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2024-11-19 21:36:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 21:36:34,058 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 14 states have call predecessors, (15), 13 states have call successors, (15) Word has length 57 [2024-11-19 21:36:34,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:36:34,059 INFO L225 Difference]: With dead ends: 63 [2024-11-19 21:36:34,059 INFO L226 Difference]: Without dead ends: 55 [2024-11-19 21:36:34,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=819, Unknown=0, NotChecked=0, Total=992 [2024-11-19 21:36:34,061 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 19 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 21:36:34,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 298 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 21:36:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-19 21:36:34,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2024-11-19 21:36:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-19 21:36:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2024-11-19 21:36:34,095 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 57 [2024-11-19 21:36:34,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:36:34,095 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2024-11-19 21:36:34,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 14 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-19 21:36:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2024-11-19 21:36:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 21:36:34,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:36:34,098 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 10, 10, 10, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:36:34,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 21:36:34,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:34,299 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:36:34,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:36:34,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1063034534, now seen corresponding path program 3 times [2024-11-19 21:36:34,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:36:34,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720400352] [2024-11-19 21:36:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:36:34,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:36:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:36:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:36:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:36:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 21:36:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-19 21:36:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-19 21:36:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 21:36:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-19 21:36:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:36:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:36:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 21:36:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 21:36:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 21:36:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:36:34,900 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 133 proven. 27 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-11-19 21:36:34,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:36:34,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720400352] [2024-11-19 21:36:34,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720400352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:36:34,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141348836] [2024-11-19 21:36:34,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 21:36:34,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:34,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:36:34,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:36:34,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 21:36:35,040 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-19 21:36:35,041 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 21:36:35,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 21:36:35,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:36:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 225 proven. 3 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-19 21:36:35,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 21:36:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 157 proven. 3 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-11-19 21:36:35,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141348836] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 21:36:35,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 21:36:35,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 30 [2024-11-19 21:36:35,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411851652] [2024-11-19 21:36:35,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 21:36:35,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-19 21:36:35,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:36:35,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-19 21:36:35,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=601, Unknown=0, NotChecked=0, Total=870 [2024-11-19 21:36:35,681 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 30 states, 30 states have (on average 2.2666666666666666) internal successors, (68), 27 states have internal predecessors, (68), 27 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (32), 26 states have call predecessors, (32), 27 states have call successors, (32) [2024-11-19 21:36:35,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:36:35,819 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2024-11-19 21:36:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 21:36:35,820 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.2666666666666666) internal successors, (68), 27 states have internal predecessors, (68), 27 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (32), 26 states have call predecessors, (32), 27 states have call successors, (32) Word has length 92 [2024-11-19 21:36:35,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:36:35,821 INFO L225 Difference]: With dead ends: 59 [2024-11-19 21:36:35,821 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 21:36:35,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 189 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=285, Invalid=707, Unknown=0, NotChecked=0, Total=992 [2024-11-19 21:36:35,822 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:36:35,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 206 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 21:36:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 21:36:35,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 21:36:35,824 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) [2024-11-19 21:36:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 21:36:35,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2024-11-19 21:36:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:36:35,825 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 21:36:35,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.2666666666666666) internal successors, (68), 27 states have internal predecessors, (68), 27 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (32), 26 states have call predecessors, (32), 27 states have call successors, (32) [2024-11-19 21:36:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 21:36:35,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 21:36:35,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 21:36:35,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 21:36:36,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:36:36,035 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-11-19 21:36:36,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 21:36:36,488 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 21:36:36,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:36:36 BoogieIcfgContainer [2024-11-19 21:36:36,524 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 21:36:36,525 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 21:36:36,525 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 21:36:36,525 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 21:36:36,525 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:36:30" (3/4) ... [2024-11-19 21:36:36,530 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 21:36:36,534 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-19 21:36:36,534 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-19 21:36:36,539 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-19 21:36:36,539 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 21:36:36,539 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 21:36:36,539 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 21:36:36,626 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 21:36:36,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 21:36:36,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 21:36:36,628 INFO L158 Benchmark]: Toolchain (without parser) took 6697.37ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 138.4MB in the beginning and 133.0MB in the end (delta: 5.5MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2024-11-19 21:36:36,628 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 21:36:36,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.81ms. Allocated memory is still 169.9MB. Free memory was 138.3MB in the beginning and 125.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 21:36:36,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.53ms. Allocated memory is still 169.9MB. Free memory was 125.7MB in the beginning and 124.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 21:36:36,629 INFO L158 Benchmark]: Boogie Preprocessor took 28.79ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 122.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 21:36:36,629 INFO L158 Benchmark]: RCFGBuilder took 268.76ms. Allocated memory is still 169.9MB. Free memory was 122.0MB in the beginning and 139.6MB in the end (delta: -17.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-19 21:36:36,629 INFO L158 Benchmark]: TraceAbstraction took 6013.53ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 138.8MB in the beginning and 137.2MB in the end (delta: 1.6MB). Peak memory consumption was 122.5MB. Max. memory is 16.1GB. [2024-11-19 21:36:36,630 INFO L158 Benchmark]: Witness Printer took 102.61ms. Allocated memory is still 205.5MB. Free memory was 137.2MB in the beginning and 133.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 21:36:36,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.81ms. Allocated memory is still 169.9MB. Free memory was 138.3MB in the beginning and 125.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.53ms. Allocated memory is still 169.9MB. Free memory was 125.7MB in the beginning and 124.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.79ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 122.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.76ms. Allocated memory is still 169.9MB. Free memory was 122.0MB in the beginning and 139.6MB in the end (delta: -17.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6013.53ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 138.8MB in the beginning and 137.2MB in the end (delta: 1.6MB). Peak memory consumption was 122.5MB. Max. memory is 16.1GB. * Witness Printer took 102.61ms. Allocated memory is still 205.5MB. Free memory was 137.2MB in the beginning and 133.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 12]: 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 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 6, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 805 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 660 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 145 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 494 GetRequests, 405 SyntacticMatches, 8 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=5, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 537 ConstructedInterpolants, 0 QuantifiedInterpolants, 1866 SizeOfPredicates, 5 NumberOfNonLiveVariables, 597 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 1328/1429 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((((276 == x) && (3 == y)) && (k <= 5)) && ((3 < k) || (3 == k))) && (3 == c)) || (((((1300 == x) && (y == 4)) && (4 <= k)) && (k <= 5)) && (c == 4))) || (((((2 == y) && (k <= 5)) && (x == 33)) && ((2 < k) || (2 == k))) && (2 == c))) || (((((0 <= k) && (c == 0)) && (y == 0)) && (k <= 5)) && (x == 0))) || (((((c == 1) && (x == 1)) && (k <= 5)) && (y == 1)) && (1 <= k))) || (((((0 <= k) && (((__int128) k * y) == ((__int128) y * y))) && (k <= 5)) && ((((6 * (((((__int128) y * y) * y) * y) * y)) + (2 * ((((((__int128) y * y) * y) * y) * y) * y))) + (5 * ((((__int128) y * y) * y) * y))) == (((__int128) x * 12) + ((__int128) y * y)))) && (5 <= c))) - ProcedureContractResult [Line: 6]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond) RESULT: Ultimate proved your program to be correct! [2024-11-19 21:36:36,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE